TRANSLATIONAL AND BOND-ORIENTATIONAL ORDER IN THE VORTEX LATTICE OF THE HIGH-TC SUPERCONDUCTOR BI2.1SR1.9CA0.9CU2O8+DELTA

被引:93
作者
GRIER, DG [1 ]
MURRAY, CA [1 ]
BOLLE, CA [1 ]
GAMMEL, PL [1 ]
BISHOP, DJ [1 ]
MITZI, DB [1 ]
KAPITULNIK, A [1 ]
机构
[1] STANFORD UNIV,STANFORD,CA 94305
关键词
D O I
10.1103/PhysRevLett.66.2270
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have investigated the microscopic ordering of the flux lattice in the mixed state of Bi2.1Sr1.9Ca0.9-Cu2O8 + delta near H(c1) by image analysis of Bitter-decorated samples. We observe a dramatic transition from strong isotropic disorder to hexatic order with increasing magnetic field. This transition occurs at a lower applied magnetic field for samples which are annealed in oxygen.
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页码:2270 / 2273
页数:4
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