ANOMALIES IN FREE FLUX-FLOW HALL-EFFECT

被引:25
作者
BHATTACHARYA, S [1 ]
HIGGINS, MJ [1 ]
RAMAKRISHNAN, TV [1 ]
机构
[1] INDIAN INST SCI, DEPT PHYS, BANGALORE 560012, KARNATAKA, INDIA
关键词
D O I
10.1103/PhysRevLett.73.1699
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The low-T-c layered superconductor 2H-NbSe2 shows remarkable results for free flux-flow Hall effect. At low magnetic fields, the Nozieres-Vinen result of a field-independent Hall angle appears to hold. At larger fields, a marked departure occurs leading to an extremely sharp and pronounced minimum slightly below H-c2, unaccounted for in the standard theoretical models. The results suggest the existence of collective dynamics and phase transitions (such as melting) in a clean flux line lattice.
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页码:1699 / 1702
页数:4
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