Translational and bond-orientational order in the vortex lattice of the high-Tc superconductor Bi2.1Sr1.9Ca0.9Cu2O8+ delta.
Translational and bond-orientational order in the vortex lattice of the high-Tc superconductor Bi2.1Sr1.9Ca0.9Cu2O8+ delta.
复制标题
高温超导体 Bi2.1Sr1.9Ca0.9Cu2O8 δ 涡旋晶格中的平移和键取向顺序。
DOI：
10.1103/physrevlett.66.2270
复制
发表时间：
1991
影响因子：
8.6
通讯作者：
A. Kapitulnik
中科院分区：
文献类型：
--
作者：
D. Grier;C. A. Murray;C. Bolle;P. Gammel;D. Bishop;D. Mitzi;A. Kapitulnik
通过图像分析，研究了Bi{sub 2.1}Sr{sub 1.9}Ca{sub 0.9}Cu{sub 2}O{sub 8+{delta}}在{italH}{sub {italc}1}附近混合态磁通晶格的微观有序性。我们观察到一个戏剧性的转变，从强各向同性无序六角秩序与增加磁场。对于在氧气中退火的样品，这种转变发生在较低的外加磁场下。
We have investigated the microscopic ordering of the flux lattice in the mixed state of Bi{sub 2.1}Sr{sub 1.9}Ca{sub 0.9}Cu{sub 2}O{sub 8+{delta}} near {ital H}{sub {ital c}1} 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.