Stephen Nagler

Stephen Nagler

Position: Division Director

Group: Triple-Axis Spectroscopy,
Structure of Matter,
Time-of-Flight Spectroscopy

Facility: High Flux Isotope Reactor, Spallation Neutron Source


Phone: (865) 574-5240

1995 - present: Oak Ridge National Laboratory, Research Staff
  • 2011 - present: Director of Quantum Condensed Matter Division
  • 2007 - present: Corporate Research Fellow
  • 2006 - 2011: Chief Scientist, Neutron Scattering Science Division
  • 2005 - 2006: Interim Director, Center for Neutron Scattering
  • 2000 - 2007: Distinguished Research Staff
  • 1996 - 2005: Group Leader, Neutron Spectrometry
  • 1995 - 1999: Senior Research Staff

1997 - present: University of Tennessee, Faculty
  • 2011 - present: Inaugural member of CIRE faculty
  • 1997 - present: Adjunct Professor of Physics

1984 - 1996: University of Florida, Faculty
  • 1993 - 1996: Professor of Physics (on leave, 1996)
  • 1989 - 1993: Associate Professor of Physics
  • 1986 - 1996: Affiliate faculty, Department of Materials Science and Engineering
  • 1984 - 1989: Assistant Professor of Physics

1982 - 1984: IBM T. J. Watson Research Center
  • 1982 - 1984: Visiting Scientist, Physical Sciences

1978 - 1982: Chalk River Nuclear Laboratories
  • 1982: Summer Professor, Neutron and Solid State Physics Branch
  • 1978 - 1982: Attached Staff, Neutron and Solid State Physics Branch

1978 - 1982: University of Toronto
  • 1978 - 1982: Research / Graduate Teaching Assistant, Department of Physics

Visiting Professor / Scholar Positions
  • Visiting Scientist, RISOE National Laboratory (2000)
  • Visiting Scientist, Brookhaven National Laboratory (1994)
  • Visiting Professor, Weizmann Institute of Science (1993)
  • Visiting Professor, Clarendon Laboratories, University of Oxford (1990 - 1991)

Selected Professional Activities
  • TRIUMF Center for Molecular And Materials Science
  • Experimental Evaluation Committee (EEC) chair, (2013 - present), EEC member, (2009 - 2012)
  • Physical Review Letters Editorial Board (2006 - 2012)
  • Selection Committee, Herzberg Medal (2011 - 2013)
  • Selection Committee, Brockhouse Medal (2003 - 2005)
User Facility Experience
Neutron: FRM II, Lujan Center, SINQ, NRU, RISOE, NIST, ILL, ISIS, HFBR
Synchrotron: ESRF, APS, NSLS, SSRL


​B.Sc. (Physics), New College, University of Toronto, 1978.

Ph.D. (Physics), University of Toronto 1982,


​Quantum Materials, Phase Transitions, Novel States of Matter and Novel Excitations, X-Ray and Neutron Scattering

Selected Publications

Y. Yiu, P. Bonfa, S. Sanna, R. De Renzi, P. Carretta, M. A. McGuire, A. Huq and S. E. Nagler, Tuning the magnetic and structural phase transitions of PrFeAsO via Fe/Ru spin dilution, Phys. Rev. B 90, 064515 (2014).

J.Y.Y. Lin, A.A. Aczel, D.L. Abernathy, S.E. Nagler, W.J.L. Buyers and G.E. Granroth, Using Monte Carlo ray tracing simulations to model the quantum harmonic oscillator modes observed in uranium nitride, Phys. Rev. B 89, 144302 (2014).

B. Lake, D. A. Tennant, J.-S. Caux, T. Barthel, U. Schollwock, S. E. Nagler and C. D. Frost, Multispinon continua at zero and finite temperature in a near-ideal Heisenberg chain, Phys. Rev. Lett. 111, 137205 (2013).

A. A. Aczel, D. E. Bugaris, J. Yeon, H.-C. zur Loye and S. E. Nagler, Coupled Nd and B’ spin ordering in the double perovskites Nd2NaB’O6 (B’=Ru, Os), Phys. Rev. B 88, 014413 (2013).

T. E. Mason, T. J. Gawne, S. E. Nagler, M. B. Nestor and J. M. Carpenter, The early Development of Neutron Diffraction: Science in the Wings of the Manhattan Project, Acta Cryst. A69, 37 (2013).

W. Siemons, G. J. MacDougall, A. A. Aczel, J. L. Zarestky , M. D. Biegalski, S. Liang, E. Dagotto, S. E. Nagler and H. M. Christen, Strain Dependence of Transition Temperatures and Structural Symmetry of BiFeO3 Within the Tetragonal-Like Structure, Appl. Phys. Lett. 101, 212901 (2012).

X.-L. Wang, K. An, L. Cai, Z. Feng, S. E. Nagler, C. Daniel, K. J. Rhodes, A. D. Stoica, H. D. Skorpenske, C. Liang, W. Zhang, J. Kim, Y. Qi and S. J. Harris, Visualizing the Chemistry and Structure Dynamics in Lithium-Ion Batteries by in-situ Neutron Scattering, Scientific Reports 2, 747 (2012).

A.A. Aczel, G. E. Granroth, G. J. MacDougall, W. J. L. Buyers, D. L. Abernathy, G. D. Samolyuk, G. M. Stocks, and S. E. Nagler, Quantum Oscillations of Nitrogen Atoms in Uranium Nitride, Nature Communications 3, 1124 (2012).

G. J. MacDougall, V. O. Garlea, A. A. Aczel, H. D. Zhou, and S. E. Nagler, Magnetic Order and Ice Rules in the Multiferroic Spinel, FeV2O4, Phys. Rev. B 86, 060414R, (2012).

M. B. Stone, M. D. Lumsden, S. E. Nagler, D. J. Singh, B. C. Sales and D. Mandrus, Quasi-one-dimensional Magnons in an Intermetallic Marcasite, Phys. Rev. Lett. 108, 167202 (2012).

G. J. MacDougall, H. M. Christen, W. Siemons, M. D. Biegalski, J. L. Zarestky, S. Liang, E. Dagotto, and S. E. Nagler, Antiferromagnetic transitions in `Tetragonal-like' BiFeO3, Phys. Rev. B. 85, 100406(R), (2012).

J. deGroot, K. Marty, M. D. Lumsden, A. D. Christianson, S. E. Nagler, S. Adiga, W. Borghois, K. Schmalzl, Z. Yamani, S. R. Bland, R. de Souza, U. Staub, W. Schweika, Y. Su, and M. Angst, Competing Ferri- and Antiferromagnetic Phases in Geometrically Frustrated LuFe2O4, Phys. Rev. Lett. 108, 037206 (2012).

G. J. MacDougall, D. Gout, J. L. Zarestky, G. Ehlers, A. Podlesnyak, M. A. McGuire, D. Mandrus, S. E. Nagler, Kinetically Inhibited Order in a Diamond Lattice Antiferromagnet, PNAS 108, 15693 (2011).

G. E. Granroth, A. I. Kolesnikov, T. E. Sherline, J. P. Clancy, K. A. Ross, J. P. C. Ruff, B. D. Gaulin, and S. E. Nagler, SEQUOIA: A Newly Operating Chopper Spectrometer at the SNS, Journal of Physics: Conference Series 251, 012058 (2010).

M. D. Lumsden, A. D. Christianson, E. A. Goremychkin, S. E. Nagler, H. A. Mook, M. B. Stone, T. Guidi, G. J. MacDougall, C. de la Cruz, A. S. Sefat, M. A. McGuire, B. C. Sales and D. Mandrus, Evolution of Spin Excitations into the Superconducting State in FeTe1-xSex, Nature Physics 6, 182-186, (2010).

A. D. Christianson, M. D. Lumsden, S. E. Nagler, G. J. MacDougall, M. A. McGuire, A. S. Sefat, R. Jin, B. C. Sales, and D. Mandrus, Static and Dynamic Magnetism in Underdoped Superconductor BaFe1.92Co0.08As2, Phys. Rev. Lett. 103, 087002, (2009).

M. D. Lumsden, A. D. Christianson, D. Parshall, M. B. Stone, S. E. Nagler, H. A. Mook, K. Lokshin, T. Egami, D. L. Abernathy, E. A. Goremychkin, R. Osborn, M. A. McGuire, A. S. Sefat, R. Jin, B. C. Sales, D. Mandrus, Two-Dimensional Resonant Magnetic Excitation in BaFe1.84Co0.16As2, Phys. Rev. Lett. 102, 107005 (2009).

M. Angst, R. P. Hermann, A. D. Christianson, M. D. Lumsden, J.-W. Kim, P. J. Ryan, D. S. Robinson, S. E. Nagler, W. Tian, R. Jin, B. C. Sales and D. Mandrus, Charge Order In LuFe2O4: Antiferroelectric Ground State and Coupling to Magnetism, Phys. Rev. Lett. 101, 227601 (2008).

V. O. Garlea, S. E. Nagler, D. L. Abernathy, R. Jin, D. Mandrus, B. Roessli, Q. Huang, M. Miller, and A. J. Schultz, Magnetic and orbital ordering in the spinel MnV2O4, Phys. Rev. Lett. 100, 066404 (2008).

V.O. Garlea, S.E. Nagler, J.L. Zarestky, C. Stassis, , D. Vaknin, P. Kögerler, D.F. McMorrow, C. Niedermayer, D. A. Tennant, B. Lake, Y. Qiu, M. Exler, J. Schnack, and M. Luban, Probing Spin Frustration in High-Symmetry Magnetic Nanomolecules by Inelastic Neutron Scattering, cond-mat/0505066, Phys. Rev. B 73, 024414 (2006).

B. Lake, D.A. Tennant, C.D. Frost, and S.E. Nagler, Quantum Criticality, and Universal Scaling of a Quantum Antiferromagnet, cond-mat/0501069, Nature Materials 4, 329 (2005).

D.F. McMorrow, S. E. Nagler, K.A. McEwan, S.D. Brown, Large Enhancement of X-ray Magnetic Scattering at the L Edges of the 5d Transition Metal Antiferromagnet K2ReCl6, J. Phys. Cond. Matter 15, L59 (2003).

M.D. Lumsden, B.C. Sales, D.G. Mandrus, S.E. Nagler and J.R. Thompson, Weak Ferromagnetism and Field-Induced Spin Reorientation in K2V3O8, Phys. Rev. Lett. 86, 159 (2001).

B. Lake, D.A. Tennant and S.E. Nagler, A Novel Longitudinal Mode in the Coupled Quantum Chain Compound KCuF3, cond-mat/9910459, Phys. Rev. Lett 85, 832 (2000).

A.W. Garrett, S.E. Nagler, D.A. Tennant, B.C. Sales and T. Barnes, Magnetic Excitations in the S=1/2 Alternating Chain Compound (VO)2P2O7, Phys. Rev. Lett. 79, 745 (1997).

.P. Koster, S.E. Nagler, E.D. Adams and G.D. Wignall, SANS Study of Phase Separation in Solid 3He-4He, MRS Symp. Proc., 376, 335 (1995).

D.A. Tennant, T.G. Perring, R.A. Cowley and S.E. Nagler, Unbound Spinons in the S=1/2 Antiferromagnetic Chain KCuF3, Phys. Rev. Lett. 70, 4003, (1993).

S.E. Nagler, D.A. Tennant, R.A. Cowley, T.G. Perring, and S.K. Satija Spin Dynamics in the Quantum Antiferromagnetic Chain Compound KCuF3, Phys. Rev. B44, 12361 (1991).

M. Sutton, S.G.J. Mochrie, T. Greytak, S.E. Nagler, L.E. Berman, G.A. Held and G.B. Stephenson, Observation of Speckle by Diffraction with Coherent X-Rays, Nature 352, 608 (1991).

C.R. Harkless, M.A. Singh, S.E. Nagler, G.B. Stephenson and J.L. Jordan-Sweet Small Angle X-Ray Scattering Study of Ordering Kinetics in a Block Copolymer, Phys. Rev. Lett. 64, 2285 (1990).

S.E. Nagler, R.F. Shannon, Jr., C.R. Harkless, M.A. Singh, and R.M. Nicklow, Time-Resolved X-Ray Scattering Study of Ordering and Coarsening in Cu3Au, Phys. Rev. Lett. 61, 718 (1988).

S.E. Nagler, P.M. Horn, T.F. Rosenbaum, R.J. Birgeneau, M. Sutton, S. Mochrie, D.E. Moncton, and R. Clarke, Orientational Order in Xenon Fluid Monolayers on Single Crystals of Exfoliated Graphite, Phys. Rev. B32, 7373 (1985).

K.L. D'Amico, D.E. Moncton, E.D. Specht, R.J. Birgeneau, S.E. Nagler, and P.M. Horn, Rotational Transition of Incommensurate Kr Monolayers on Graphite, Phys. Rev. Lett. 53, 2250 (1984).

S.E. Nagler, W.J.L. Buyers, R.L. Armstrong, and R.A. Ritchie, Static and Dynamic Spin Correlations in the Random One-Dimensional Antiferromagnet CsCoxMg1-xCl3, J. Phys. C17, 4819 (1984).

S.E. Nagler, W.J.L. Buyers, R.L. Armstrong, and B. Briat, Ising-Like Spin-1/2 Quasi-One-Dimensional Antiferromagnets: Spin-Wave Response in CsCoX3 Salts, Phys. Rev. B27, 1784 (1983).

S.E. Nagler, W.J.L. Buyers, R.L. Armstrong, and B. Briat, Propagating Domain Walls in CsCoBr3, Phys. Rev. Lett. 49, 590 (1982).

Awards, Honors and Memberships

APS Outstanding Referee Award (2013)
Gordon Battelle Award for Scientific Research (2011)
Fellow, Neutron Scattering Society of America (2010)
Fellow, American Association for the Advancement of Science (2010)
Arfken Scholar, Miami University of Ohio (2009)
UT-Battelle Director’s Award for Outstanding Team Accomplishment (2009)
UT-Battelle Team Award for Outstanding Scientific Research (2009)
Sigma Xi (2005)
Fellow, American Physical Society DCMP (2000)
ORNL Scientist of the Year (1998)
ORNL Technical Achievement Award (1998)
Elected Senior Member of Wadham College, Oxford (1990)
SERC Visiting Fellowship at Clarendon Laboratories, Oxford (1990-91)
NSF Presidential Young Investigator Award (1986-92)
NSERC Postdoctoral Fellowship (1982-85)
NSERC Postgraduate Scholarship (1978-82)
Governor General of Canada Silver Medal (New College, University of Toronto) 1978