David M Fobes

Information Systems & Modeling
Los Alamos National Laboratory


Location

Los Alamos, NM

Phone

505.665.7130

Intro

I received my PhD in Physics from Tulane University where, as a Louisiana Board of Regents Graduate Fellow, I studied the effects of chemical substitution on strongly correlated electron materials using advanced materials synthesis techniques.

Shortly thereafter I joined the Neutron Scattering Group in CMPMSD at Brookhaven National Laboratory, where I investigated the lattice dynamics in iron-based superconductors using neutron spectroscopy, and assisted in the development of a new scattering instrument at Oak Ridge National Lab, HYSPEC. As a former member of MPA-CMMS at Los Alamos National Lab, I am used neutrons to study how magnetic frustration and anisotropy affect emergent phases observed near superconductivity, and the spin dynamics of skyrmion lattices.

My work has generated considerable impact in my field; my more than thirty publications, appearing in journals such as Nature Physics, Nature Materials, and Nature Communications, have already been cited nearly six hundred times. My broader research interests include the complex role of magnetic interactions in quantum materials, which have the potential for future functionality, and machine learning for materials research.

I currently work in the Information Systems and Modeling (A-1) Group at Los Alamos National Laboratory (LANL), working on Power Grid and optimization problems.

Expertise

Neutron Scattering

Using a number of different Time of Flight and Thermal/Cold Triple Axis instruments at Oak Ridge National Laboratory's Spallation Neutron Source (SNS) and High-Flux Isotope Reactor (HFIR), NIST's Center for Neutron Research reactor (NCNR), Helmholtz-Zentrum Berlin (BER-II), Forschungs-Neutronenquelle Heinz Maier-Leibnitz (FRM-II) and the STFC Rutherford Appleton Laboratory

Single Crystal Synthesis

Materials sythesis of strongly correlated electron materials, such as complex layered oxides, iron chalcogenides, non-centrosymmetric intermetallics, and heavy fermion compounds. Using optical floating zone method with an imaging furnace, flux method, vapor transport method, Bridgman method, Czochralski method, and thermal evaporation of thin films

Polarized Neutron Scattering

Experience with polarized neutron scattering incl. spherical polarimetry with CRYOPAD and a variety of polarizers/analyzers incl. Heusler, supermirror and 3He cells

Sample characterization

Using a variety of methods including resistivity, heat capacity, magnetization and ac susceptibility, neutron and x-ray diffraction (XRD)

X-ray diffraction

Using laboratory X-ray diffractometers, including powder and single crystal x-ray diffraction for sample characterization and structure analysis and Laue X-ray diffraction for determination of sample orientation

Cryogenic Sample Environments

Experience with using a variety of sample environments incl. superconducting magnets, 3He cryostats, and closed-cycle refrigerators, and custom sample holder design.

Software Development

Modeling and data analysis and production of publication/presentation quality figures, development of a custom python library for neutron scattering data analysis (NeutronPy), and instrument control and custom automated measurement program design

Surface Science

Using such techniques as scanning electron microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDXS), scanning tunneling microscopy (STM), low energy electron diffraction (LEED), X-ray photoemission spectroscopy (XPS) and angle resolved photoemission spectroscopy (ARPES).

Skills

90 %

Python

90 %

numpy

85 %

scipy

95 %

matplotlib

80 %

Julia

85 %

Matlab

75 %

Mathematica

75 %

IDL

70 %

LabView

60 %

C

55 %

C++

95 %

git

95 %

MacOS

75 %

Windows

90 %

*nix

90 %

LaTeX

70 %

OriginPro

10 %

Rust

40 %

Ruby

40 %

Javascript

Experience

2018 – present

Los Alamos National Laboratory

R&D Scientist

Los Alamos, NM

Scientist in the Information Systems and Modeling Group (A-1)

2015 – 2018

Los Alamos National Laboratory

Postdoc Research Associate

Los Alamos, NM

Investigation of the magnetism dynamics of heavy fermion compounds and skyrmion materials using neutron spectroscopy, discovering an intimate connection between the modulated magnetic states of CeRhIn5 and its high nematic susceptibility, and making the first measurements of the spin excitation spectra of skyrmion compound MnSi via neutron Time of Flight spectroscopy. Also designed and successfully tested a versatile new uniaxial strain device for use in small angle neutron scattering

2012 – 2015

Brookhaven National Laboratory

Research Associate

Upton, NY

Study of the lattice dynamics in the iron chalcogenide superconducting family Fe(1+y)Te(1-x)Se(x) using neutron scattering, finding evidence for an orbital ordering transition in parent compound FeTe, appearing as a Bond-Order-Wave, and for an intimate coupling between magnetic fluctuations and the lattice degree of freedom resulting in the appearance of a "forbidden" phonon. Also participated in the comissioning of a hybrid spectrometer (HYSPEC) at Oak Ridge National Lab's Spallation Neutron Source, and began developement of NeutronPy

2010 – 2012

Tulane University

Postdoctoral Research Fellow

New Orleans, LA

Investigation of the superconductivity as a function of excess-Fe content in iron chalcogenide superconductor family Fe(1+y)Te(1-x)Se(x) via materials synthesis, bulk characterization techniques, and neutron scattering

2006 – 2010

Tulane University

Graduate Research Assistant

New Orleans, LA

Study of the orbital physics of layered strontium ruthenates, uncovering the orbital-selective nature of the metamagnetism in Sr4Ru3O10, unusual switching behavior in Ca3Ru2O7, and showing the viability for bolometric detection of Ca2RuO4

2004 – 2006

Tulane University

Undergraduate Research Assistant

New Orleans, LA

Floating zone single crystal synthesis of layered perovskite ruthenates of the Ruddlesden-Popper series, focusing on studying the effects of dopants such as Ca for Sr, and Ti for Ru

Education

2006 – 2010

Tulane University

Doctor of Philosophy (Ph.D.) in Physics

New Orleans, LA

Dissertation: 'Orbital dependence of magnetism in layered ruthenate systems'

Advisor: Zhiqiang Mao

2002 – 2006

Tulane University

Bachelor of Science (B.Sc.) in Physics, Math

New Orleans, LA

Awards


Institute for Complex Adaptive Matter (ICAM) Junior Scientist Travel Award (2010)

Awarded to 30 applicants per year, only 5-10 for domestic travel.


Provost's Office Graduate Student Travel Fund, Tulane University (2009)

Travel award to present my research at the 2009 APS March Meeting.


58th Meeting of Nobel Laureates at Lindau: Physics, Attendee (2008)

560 young scientists selected (only 50 from the US) out of 20,000 applicants


Louisiana Board of Regents Graduate Fellowship Grant (2006-2010)

Graduate Studeis support. One award out of approx. 15 incoming graduate applicants in Physics.


National Society of Collegiate Scholars (2003)

Offered to students in their first two years with a 3.4 GPA or greater, and are within the top 20% of their class.

Funding


Neutron Beam Time

Authored and co-authored 66 successful proposals for neutron beam time at various international and domestic neutron sources since 2012, with an acceptance rate of more than 95%. The corresponding allocated beam time consists of of 336 days, which corresponds to approximately $6,720,000 in third party funding, where neutron beam time is typical estimated to cost in excess of ~20,000/day.


ISTI Rapid Response G&A 2018 Cloud Computing

Framework for On-Demand Cloud Computation of Theoretical Models of Materials over Discretized Phase Volumes

Teaching

Students Supervised:
Graduate: 4
Undergraduate: 2
Jan 2017 – Apr 2017

Introduction to Python for Data Analysis and Visualization

Instructor

Los Alamos National Laboratory

Designed and taught a course on introductory Python to members of MPA-CMMS at LANL.

Aug 2008 – Dec 2008

Modern Physics

Private Tutor

Tulane University

Provided private tutoring services for undergraduates in the introductory Modern Physics course

Aug 2008 – Dec 2008

Introduction to Thermodynamics

Private Tutor

Tulane University

Provided private tutoring services for undergraduates in the introductory Thermodynamics course

Aug 2008 – Dec 2008

Partial Differential Equations

Private Tutor

Tulane University

Provided private tutoring services for undergraduates in the Partial Differential Equations course

Jan 2008 – May 2008

General Physics

Private Tutor

Tulane Unversity

Provided tutoring services for students of the undergraduate General Physics course

Sept 2005 – Dec 2005

General Physics

Private Tutor

Rutgers Unversity

Provided tutoring services for students of the undergraduate General Physics course

Publications

h-index: 13
Publications: 36
Citations: 667
(Web of Science)
2018

Nature Physics

doi: 10.1038/s41567-018-0060-9

Tunable Emergent Heterostructures in a Prototypical Correlated Metal

D. M. Fobes, S. Zhang, S.-Z. Lin, P. Das, N. J. Ghimire, E. D. Bauer, J. D. Thompson, L. W. Harriger, G. Ehlers, A. Podlesnyak, R. I. Bewley, A. Sazonov, V. Hutanu, F. Ronning, C. D. Batista, and M. Janoschek

Anisotropic magnetocrystalline coupling of the skyrmion lattice in MnSi

Y. Luo, S.-Z. Lin, D. M. Fobes, Z. Liu, E. D. Bauer, J. B. Betts, A. Migliori, J. D. Thompson, M. Janoschek, and B. Maiorov

Elasticity in the skyrmion phase unveils depinning at ultra-low current densities

Y. Luo, S.-Z. Lin, M. Leroux, N. Wakeham, D. M. Fobes, E. D. Bauer, J. B. Betts, J. D. Thompson, A. Migliori, M. Janoschek, B. Maiorov

2017

Physical Review B

doi: 10.1103/PhysRevB.96.174413

Realization of the Axial Next-Nearest-Neighbor Ising model in U3Al2Ge3

D. M. Fobes, S.-Z. Lin, N. J. Ghimire, E. D. Bauer, J. D. Thompson, M. Bleuel, L. M. DeBeer-Schmitt, and M. Janoschek

Solving quantum riddles with neutron scattering

D. M. Fobes, M. Janoschek

2017

Applied Physics Letters

doi: 10.1063/1.4983473

Versatile Strain-Tuning of Modulated Long-Period Magnetic Structures

D. M. Fobes, Y. Luo, N. Leon, E. D. Bauer, V. R. Fanelli, M. A. Taylor, L. M. DeBeer-Schmitt, and M. Janoschek

2017

Nature Communications

doi: 10.1038/s41467-017-00066-w

Ordered hydroxyls on Ca3Ru2O7(001)

D. Halwidl, W. Mayr-Schmölzer, D. Fobes, J. Peng, Z. Q\. Mao, M. Schmid, F. Mittendorfer, J. Redinger, and U. Diebold

2017

Journal of Physics: Condensed Matter

doi: 10.1088/1361-648X/aa6696

Citations: 1

Low temperature magnetic structure of CeRhIn5 by neutron diffraction on absorption-optimized samples

D. M. Fobes, E. D. Bauer, J. D. Thompson, A. Sazonov, V. Hutanu, F. Ronning, and M. Janoschek

2016

Physical Review B

doi: 10.1103/PhysRevB.94.121103

Forbidden phonon: Dynamical signature of bond symmetry breaking in the iron chalcogenides

D. Fobes, I. A. Zaliznyak, J. M. Tranquada, Z. Xu, G. Gu, X.-G. He, W. Ku, Y. Zhao, M. Matsuda, V. Garlea, and B. Winn

2015

Nature Materials

doi: 10.1038/NMAT4512

Citations: 8

Adsorption of Water at the SrO Surface of Ruthenates

D. Halwidl, B. Stöger, W. Mayr-Schmölzer, J. Pavelec , D. M. Fobes, J. Peng, Z. Q. Mao, G. Parkinson, M. Schmid, F. Mittendorfer, J. Redinger, and U. Diebold

2014

Physical Review B

doi: 10.1103/PhysRevB.90.165438

Citations: 5

Point Defects at Cleaved Sr(n+1)Ru(n)O(3n+1) (001) Surfaces

B. Stöger, M. Hieckel, F. Mittendorfer, Z. Wang, M. Schmid, G. S. Parkinson, D. M. Fobes, J. Peng, J. E. Ortmann, A. Limbeck, Z. Q. Mao, J. Redinger, and U. Diebold

2014

Physical Review Letters

doi: 10.1103/PhysRevLett.113.116101

Citations: 7

High chemical activity of a perovskite surface: Reaction of CO with Sr3Ru2O7

B. Stöger, M. Hieckel, F. Mittendorfer, Z. Wang, D. Fobes, J. Peng, Z. Q. Mao, M. Schmid, J. Redinger, and U. Diebold

2014

ACS Nano

doi: 10.1021/nn502895s

Citations: 12

Cluster Nucleation and Growth from a Highly Supersaturated Adatom Phase: Silver on Magnetite

R. Bliem, R. Kosak, L. Perneczky, Z. Novotny, O. Gamba, D. Fobes, Z. Q. Mao, M. Schmid, U. Diebold, P. Blaha, and G. S. Parkinson

2014

Physical Review Letters

doi: 10.1103/PhysRevLett.112.187202

Citations: 17

Ferro-Orbital Ordering Transition in Iron Telluride Fe(1+y)Te

D. Fobes, I. A. Zaliznyak, Z. Xu, R. Zhong, G. Gu, J. M. Tranquada, L. Harriger, D. Singh, O. Garlea, M. Lumsden, and B. Winn

2013

Nature Communications

doi: 10.1038/ncomms3596

Citations: 15

Enhanced spin-triplet superconductivity near dislocations in Sr2RuO4

Y. A. Ying, N. E. Staley, Y. Xin, K. Sun, X. Cai, D. Fobes, T. J. Liu, Z. Q. Mao, and Y. Liu

2013

Physical Review B

doi: 10.1103/PhysRevB.87.085125

Citations: 7

From quasi-two-dimensional metal with ferromagnetic bilayers to Mott insulator with G-type antiferromagnetic order in Ca3(Ru(1-x)Ti(x))2O7

J. Peng, X. Ke, G. C. Wang, J. E. Ortmann, D. Fobes, T. Hong, W. Tian, X. S. Wu, and Z. Q. Mao

2013

Physical Review B

doi: 10.1103/PhysRevB.87.081104

Citations: 8

Unconventional quantum oscillations in mesoscopic rings of spin-triplet superconductor Sr2RuO4

X. Cai, Y. A. Ying, N. E. Staley, Y. Xin, D. Fobes, T. J. Liu, Z. Q. Mao, and Y. Liu

2012

Physical Review B

doi: 10.1103/PhysRevB.86.014434

Citations: 4

Effect of disorder on quantum phase transition in the double layered ruthenates (Sr(1-x)Ca(x))3Ru2O7

Z. Qu, J. Peng, T. J. Liu, D. Fobes, V. Dobrosavljevic, L. Spinu, and Z. Q. Mao

2012

Physical Review B

doi: 10.1103/PhysRevB.85.144427

Citations: 9

Ferromagnetism in CuFeSb: Evidence of competing magnetic interactions in iron-based superconductors

B. Qian, J. Lee, J. Hu, G. C. Wang, P. Kumar, M. H. Fang, T. J. Liu, D. Fobes, H. Pham, L. Spinu, X. S. Wu, M. Green, S. H. Lee, and Z. Q. Mao

2012

Journal of Applied Physics

doi: 10.1063/1.4704387

Citations: 2

Metal-insulator transition in doped Ca2RuO4: potential application in bolometric detection

D. Fobes, E. Vehstedt, G. C. Wang, T. J. Liu, Z. Q. Mao

2012

Physical Review Letters

doi: 10.1103/PhysRevLett.108.107002

Citations: 30

Friedel-like Oscillations from Interstitial Iron in Superconducting Fe(1+y)Te0.62Se0.38

V. Thampy, J. Kang, J. A. Rodriguez-Rivera, W. Bao, A. T. Savici, J. Hu, T. J. Liu, B. Qian, D. Fobes, Z. Q. Mao, C. B. Fu, W. C. Chen, Q. Ye, R. W. Erwin, T. R. Gentile, Z. Tesanovic, and C. Broholm

2011

Phys. Rev. B

doi: 10.1103/PhysRevB.84.014406

Citations: 3

Magnetic phase transitions and bulk spin-valve effect tuned by in-plane field orientation in Ca3Ru2O7

D. Fobes, J. Peng, Z. Qu, T. J. Liu, and Z. Q. Mao

2010

Nature Materials

doi: 10.1038/NMAT2800

Citations: 176

From (pi, 0) magnetic order to superconductivity with (pi,pi) magnetic resonance in Fe1.02(Te(1-x)Se(x))

T. J. Liu, J. Hu, B. Qian, D. M. Fobes, Z. Q. Mao, W. Bao, M. Reehuis, S. A. J. Kimber, K. Prokes, S. Matas, D. N. Argyriou, A. Hiess, A. Rotaru, H. Pham, L. Spinu, Y. Qiu, V. Thampy, A. T. Savici, J. A. Rodriguez, and C. Broholm

2010

Physical Review B

doi: 10.1103/PhysRevB.82.024417

Citations: 14

Interplay between the lattice and spin degrees of freedom in (Sr(1-x)Ca(x))3Ru2O7

J. Peng, Z. Qu, B. Qian, D. Fobes, T. J. Liu, X. Wu, H. M. Pham, L. Spinu, and Z. Q. Mao

2010

Physical Review B

doi: 10.1103/PhysRevB.81.172402

Citations: 10

Anisotropy of magnetoresistivities in Sr4Ru3O10: Evidence for an orbital-selective metamagnetic transition

D. Fobes, T. J. Liu, Z. Qu, H. Q. Yuan, M. Salamon, M. Zhou, J. Hooper, and Z. Q. Mao

2010

Physical Review B

doi: 10.1103/PhysRevB.81.155121

Citations: 6

Doping and dimensionality effects on the core-level spectra of layered ruthenates

H. Guo, Y. Li, D. Urbina, B. Hu, R. Jin, T. Liu, D. Fobes, Z. Q. Mao, E. W. Plummer, and J. Zhang

2009

Physical Review Letters

doi: 10.1103/PhysRevLett.103.247004

Citations: 16

Suppression of Proximity Effect and the Enhancement of p-Wave Superconductivity in the Sr2RuO4-Ru System

Y. A. Ying, Y. Xin, B. W. Clouser, E. Hao, N. E. Staley, R. J. Myers, L. F. Allard, D. Fobes, T. Liu, Z. Q. Mao, and Y. Liu

2009

Physical Review B

doi: 10.1103/PhysRevB.80.174509

Citations: 159

Charge carrier localization induced by excess Fe in the superconductor Fe(1+y)Te(1-x)Se(x)

T. J. Liu, X. Ke, B. Qian, J. Hu, D. M. Fobes, E. K. Vehstedt, H. Pham, J. H. Yang, M. H. Fang, L. Spinu, P. Schiffer, Y. Liu, Z. Q. Mao

2009

Physical Review B

doi: 10.1103/PhysRevB.80.115130

Citations: 10

Complex electronic states in double-layered ruthenates (Sr(1-x)Ca(x))3Ru2O7

Z. Qu, J. Peng, T. J. Liu, D. Fobes, L. Spinu, and Z. Q. Mao

2009

Journal of Physics Conference Series

doi: 10.1088/1742-6596/150/4/042134

Citations: 4

Real-space observation of magnetic domain structure at metamagnetic tansition in a triple-layer ruthenate Sr4Ru3O10

Y. Nakajima, Y. Matsumoto, D. Fobes, M. Zhou, Z. Q. Mao, and T. Tamegai

2008

Physical Review B

doi: 10.1103/PhysRevB.78.180407

Citations: 23

Unusual heavy-mass nearly ferromagnetic state with a surprisingly large Wilson ratio in the double layered ruthenates (Sr(1-x)Ca(x))3Ru2O7

Z. Qu, L. Spinu, H. Yuan, V. Dobrosavljević, W. Bao, J. W. Lynn, M. Nicklas, J. Peng, T. Liu, D. Fobes, E. Flesch, and Z. Q. Mao

2008

Physical Review Letters

doi: 10.1103/PhysRevLett.101.057002

Citations: 9

Band-Dependent Normal-State Coherence in Sr2RuO4: Evidence from Nernst Effect and Thermopower Measurements

X. Xu, Z. Xu, T. Liu, D. Fobes, Z. Mao, Y. Liu

2007

Physical Review B

doi: 10.1103/PhysRevB.76.094405

Citations: 9

Magnetic, electrical transport, and thermoelectric properties of Sr4Ru3O10: Evidence for a field-induced electronic phase transition at low temperatures

Z. Xu, X. Xu, R. Freitas, Z. Long, M. Zhou, D. Fobes, M. Fang, P. Schiffer, Z. Mao, and Y. Liu

2007

Physical Review B

doi: 10.1103/PhysRevB.75.094429

Citations: 13

Phase diagram of the electronic states of trilayered ruthenate Sr4Ru3O10

D. Fobes, M. H. Yu, M. Zhou, J. Hooper, C. J. O'Connor, M. Rosario, and Z. Q. Mao

2007

Physical Review B

doi: 10.1103/PhysRevB.75.060403

Citations: 8

Competing magnetic fluctuations in Sr3Ru2O7 probed by Ti doping

J. Hooper, M. H. Fang, M. Zhou, D. Fobes, N. Dang, Z. Q. Mao, C. M. Feng, Z. A. Xu, M. H. Yu, C. J. O'Connor, G. J. Xu, N. Andersen, and M. Salamon

2005

Materials Research Bulletin

doi: 10.1016/j.materresbull.2005.03.004

Citations: 15

Electronic and magnetic properties of triple-layered ruthenate Sr4Ru3O10 single crystals grown by a floating-zone method

M. Zhou, J. Hooper, D. Fobes, Z. Q. Mao, V. Golubb and C. J. O'Connor

Presentations

Invited: 11
Contributed: 21
25 June 2018

American Conference on Neutron Scattering

College Park, Maryland

Invited talk

Spin excitations of the skyrmion lattice in MnSi

9 August 2017

Skyrmionics: Materials, Phenomena and Applications

Santa Fe, New Mexico

Invited talk

Spin excitations of the skyrmion lattice in MnSi

17-21 July 2017

International Conference on Strongly Correlated Electron Systems (SCES)

Prague, Czech Republic

Poster

Magnetic frustration in a prototypical strongly correlated metal

9-13 July 2017

International Conference on Neutron Scattering (ICNS)

Daejeon, South Korea

Contributed talk

Magnetic frustration in a prototypical strongly correlated metal

7 June 2017

Science in '3'

Los Alamos National Laboratory, Los Alamos, NM

Contributed talk

Emerging Electronic Order from Frustrated Magnetism

14 March 2017

APS March Meeting

New Orleans, LA

Contributed talk

Magnetic frustration in a prototypical strongly correlated electron system

11 January 2016

LDRD External Project Review

Los Alamos National Laboratory, Los Alamos, NM

Neutron spectroscopy investigation of skyrmion lattice materials

2 November 2016

Triennial DOE-BES-MSE Review

Los Alamos National Laboratory, Los Alamos, NM

Poster

Neutron Spectroscopy Studies of CeRhIn5

11 July 2016

American Conference on Neutron Scattering

Long Beach, CA

Contributed talk

Magnetic frustration induced by applied magnetic field in CeRhIn5

14 March 2016

APS March Meeting

Baltimore, MD

Contributed talk

Spin wave spectrum of CeRhIn5 under applied magnetic field

4 March 2015

APS March Meeting

San Antonio, TX

Contributed talk

"Forbidden" phonon in the iron chalcogenide series

20 November, 2014

Young Researcher Symposium

Brookhaven National Laboratory, Upton, NY

Poster

Ferro-orbital order and unexpected phonon scattering in the iron chalcogenide superconductor family

12 November 2014

Los Alamos National Laboratory

Los Alamos, NM

Invited talk

Ferro-orbital order and 'forbidden' phonons in the iron chalcogenides

9 November 2014

Louisiana State University

Baton Rouge, LA

Invited talk

Ferro-orbital order and an unexpected phonon mode in the iron chalcogenide superconductor family

4 June 2014

American Conference on Neutron Scattering

Knoxville, TN

Contributed talk

Observation of an acoustic mode potentially driven by an imbalance between the magnetic moments of neighboring Fe atoms in Fe(1-x)Te (y < 0.12)

14 May 2014

Oak Ridge National Laboratory

Oak Ridge, TN

Invited Seminar

Bond order wave formation and an unexpected acoustic mode in iron-chalcogenide end-member Fe(1+y)Te revealed by neutron scattering studies

5 March 2014

APS March Meeting

Denver, CO

Contributed talk

Observation of acoustic-phonon-like mode driven by magnetic imbalance between neighboring Fe atoms in Fe(1+y)Te (y<0.12)

25 February 2014

QCMD Seminar Series at Oak Ridge National Laboratory

Oak Ridge, TN

Invited talk

Neutron scattering studies of the effects of non-stoichiometric interstitial Fe in iron-chalcogenide end-member Fe(1+y)Te

19 March 2013

APS March Meeting

Baltimore, MD

Contributed talk

Unconventional (pi, pi) order in Fe1.1Te

28 February 2012

APS March Meeting

Boston, MA

Contributed talk

Anisotropy of magnetoresistivities in Sr3Ru2O7: Evidence for orbital-dependent metamagnetism

13 October 2011

Brookhaven National Laboratory

Upton, NY

Invited Colloquium

Exotic phenomena in strongly correlated layered ruthenates

23 September 2011

Oak Ridge National Laboratory

Oak Ridge, TN

Invited Colloquium

Exotic phenomena in strongly correlated layered ruthenates

22 June 2011

Lawrence Livermore National Laboratory

Livermore, CA

Invited Colloquium

Exotic phenomena in strongly correlated layered ruthenates

23 March 2011

APS March Meeting

Dallas, TX

Contributed talk

Metastable Magnetic states in Ca3Ru2O7

8 July 2010

Tulane University

New Orleans, LA

Dissertation Defense

Orbital dependence of magnetism in layered ruthenate systems

19 March 2010

APS March Meeting

Portland, OR

Contributed talk

Anisotropic magnetic coupling in Ca3Ru2O7 probed by angle resolved magnetotransport

15 September 2009

Tulane University

New Orleans, LA

Invited Colloquium

Orbital Physics in Layered Ruthenates

21 May 2009

Tulane University

New Orleans, LA

Prospectus Defense

Probing the orbital dependence of magnetic phenomena in layered ruthenate systems

19 March 2009

APS March Meeting

Pittsburgh, PA

Contributed talk

Probing orbital-dependent magnetism in layered perovskite ruthenates through angle-dependent magnetoresistivity

14 March 2008

APS March Meeting

New Orleans, LA

Contributed talk

Anisotropy of magnetoresistivity in trilayered ruthenate Sr4Ru3O10: Evidence for orbital dependent metamagnetism

5 March 2007

APS March Meeting

Denver, CO

Contributed talk

Competing magnetic fluctuations in Sr3Ru2O7 probed by Ti doping

10 April 2006

Tulane University

New Orleans, LA

Seminar

Approximate solutions to the heat equation over coated domains