CYCLOTRON-RESONANCE IN A CUPRATE SUPERCONDUCTOR | |
Article | |
关键词: VALENCE-BOND STATE; TEMPERATURE-DEPENDENCE; HALL; YBA2CU3O7-DELTA; CONDUCTIVITY; RESISTIVITY; SCATTERING; CRYSTAL; GAP; | |
DOI : 10.1103/PhysRevB.46.8505 | |
来源: SCIE |
【 摘 要 】
Anderson suggested that the temperature dependence of the normal-state Hall coefficient in the high-T(c) superconductors comes from two distinct relaxation rates: a longitudinal relaxation rate (tau(tr)-1) due to holon-spinon scattering and a transverse relaxation rate (tau(H)-1) due to spinon-spinon scattering. A generalized Drude model that incorporates these magnetic-field-induced anisotropy in charge-relaxation rates yields another possible signature of Anderson's conjecture: cyclotron resonance at omega = omega(c)tau(H)/tau(tr), where omega(c) is the cyclotron frequency. We discuss the feasibility of observing this new signature.
【 授权许可】
Free