Ted Barnes
Victor Barzykin
Tom Callcott
Bob Compton
Pengcheng Dai
Adolfo Eguiluz
David Mandrus
Ward Plummer
John Quinn
Jim Thompson
Hanno Weitering
Zhenyu Zhang
Dr. Ted Barnes
Professor/UT-ORNL Joint FacultyOffice: 213 S&E Building
Telephone: + (865) 974-9020 (UTK), (865) 574-4575 (ORNL)
E-mail: tbarnes@utk.edu
Research Interests
Quantum spin systems, spin ladders and chains, high-Tc systems and other 1D and 2D antiferromagnets. Numerical and computational methods in quantum magnetism, including Lanczos, DMRG and Quantum Monte Carlo. Neutron scattering as applied to the study of quantum magnets (theory and experiment).
Research Highlights
Boundaries, Cusps and Discontinuities in the Multimagnon Continua of Quasi-1D Quantum Spin Systems
T.Barnes.
cond-mat/0204115,
Phys. Rev. B to appear.
Two-magnon states in Cu(NO3)2*2.5D2O using inelastic neutron scattering
D.A.Tennant, C.Broholm, D.H.Reich, S.E.Nagler, G.E.Granroth, T.Barnes, G.Xu, B.C.Sales, Y.Chen,
cond-mat/0005222,
Phys. Rev. B. to appear.
A Study of the S=1/2 Alternating Chain using Multiprecision Methods
T.Barnes, J.Riera and D.A.Tennant,
cond-mat/9801224,
Phys. Rev. B59, 11384 (1999).
Magnetic Excitations in the S=1/2 Alternating Chain Compound (VO)2P2O7
(with A.W.Garrett, S.E.Nagler, B.C.Sales and D.A.Tennant),
Phys. Rev. Lett. 79, 745 (1997).
Excitation Spectrum and Superexchange Pathways in VODPO4 * 1/2 D2O
(with A.W.Garrett, S.E.Nagler, D.A.Tennant and C.C.Torardi),
Phys. Rev. Lett. 78, 4998 (1997).
Neutron Scattering Study of Magnetic Excitations in (VO)2P2O7
cond-mat/9607059,
Phys. Rev. B55, 3631 (1997). (with S.E.Nagler, A.W.Garrett and C.C.Torardi).
The Susceptibility and Excitation Spectrum of (VO)2P2O7 in Ladder and Dimer Chain Models
T.Barnes and J.Riera,
Phys. Rev. B50, 6817 (1994).
On the Excitation Spectrum of Heisenberg Spin Ladders
T.Barnes, E.Dagotto, J.Riera and E.S.Swanson,
Phys. Rev. B47, 3196 (1993).
The 2D Heisenberg Antiferromagnet in High-Tc Superconductivity, A Review of Numerical Techniques and Results
(A Caltech C3P White Paper on Supercomputer Applications.)
T.Barnes,
Int. J. Mod. Phys. C2, 659 (1991).
Educational Background
PhD (1977), Caltech