Zobrazeno 1 - 10
of 51
pro vyhledávání: '"J. M. Wheatley"'
Publikováno v:
Proceedings of the International Astronomical Union. 14:7-11
The Berkeley Visible Image Tube (BVIT) has been a user instrument on the SALT 10-m telescope for the past six years. It can observe transient astrophysical phenomena occurring on time-scales of micro-seconds. This overview presented some recent obser
Autor:
J. M. Wheatley, Tao Xiang
Publikováno v:
Physical Review B. 54:R12653-R12656
The quasiparticle dispersion in the one-hole t-t'-t"-J model is studied. Both the finite-size diagonalization and the self-consistent Born approximation calculations have been performed and compared. The quasiparticle band structures in the hole and
Autor:
R. G. Dias, J. M. Wheatley
Publikováno v:
Solid State Communications. 98:859-862
The superconducting upper critical field $H_{c2}(T)$ of a two dimensional BCS superconductor is calculated in the vicinity of a van-Hove singularity. The zero temperature upper critical field is strongly enhanced at weak coupling when the Fermi conto
Publikováno v:
Zeitschrift für Physik B Condensed Matter. 103:161-164
Using a simple model of long-range impurity scattering, we illustrate how different transport and Hall relaxation rates may arise when the electron quasiparticle picture breaks down. We show how a broad and incoherent spectral function requires the u
Autor:
J. R. Cooper, Ognjen Milat, Chengtian Lin, J. M. Wheatley, Nigel E. Hussey, Ian R. Fisher, A. Carrington, Andrew P. Mackenzie
Publikováno v:
Physical Review Letters. 76:122-125
We report measurements of the normal state magnetoresistance (MR) from 30 to 340 K in fields B up to 13 T for single crystals of overdoped Tl2Ba2CuO6 (T-c less than or equal to 25 K). For out-of-plane current flow, the transverse MR Delta rho(c)/rho(
Autor:
J. M. Wheatley, Daniel C. Mattis
Publikováno v:
Physical Review B. 52:15103-15106
Autor:
Daniel C. Mattis, J. M. Wheatley
Publikováno v:
Modern Physics Letters B. :1107-1115
We review the optical absorption spectrum of a high-temperature superconductor and present a simple theory which explains it in some detail. An experiment is proposed to determine the averaged spectral density and wave function renormalization functi
Autor:
Søren Hattel, J. M. Wheatley
Publikováno v:
Physical Review B. 50:16590-16593
Collective depinning transitions in Coulomb solid-on-a-lattice systems are investigated in the low-charge-density limit. It is argued that depinning occurs at an inverted, continuous, dislocation unbinding transition of the Halperin-Nelson type. The
Autor:
J. M. Wheatley, Giuliano Gavazzi
Publikováno v:
Physical Review B. 49:13263-13266
Single (spinor) particle motions in randomly fluctuating U(1) and SU(2) magnetic fluxes in two dimensions are compared. While the problems are similar in the weak-fluctuation limit, strikingly different physical behavior is found in the strong-fluctu
Autor:
Martin J. Lercher, J. M. Wheatley
Publikováno v:
Physical Review B. 49:736-739