Reentrant c-axis magnetoresistance in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} with columnar defects: Evidence for recoupling of the vortex liquid
Reentrant c-axis magnetoresistance in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} with columnar defects: Evidence for recoupling of the vortex liquid
复制标题
具有柱状缺陷的 Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8 {delta}} 中的重入 c 轴磁阻：涡流液体重新耦合的证据
DOI：
10.1103/physrevb.57.r8146
复制
发表时间：
1998
影响因子：
3.7
通讯作者：
J. Sarrao
中科院分区：
文献类型：
--
作者：
N. Morozov;M. Maley;L. Bulaevskii;J. Sarrao
我们目前的c轴磁电阻和I-V测量纵向磁场中的Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}}的重离子辐照显示出明显的异常附近的分数填充的柱状缺陷的照射。反常行为在有限的温度范围内延伸，在许多晶体中，表现为{rho}{sub c}（H）的最小值。出现这些异常的温度场区域与最近观察到的两条约瑟夫森等离子体共振线的温度场区域一致。我们的测量直接表明，减少煎饼和相滑移流动性与柱状缺陷填充在涡旋液体状态。{版权} {美国物理学会}
We present c-axis magnetoresistance and I-V measurements in longitudinal magnetic field in single crystals of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} irradiated with heavy ions that display distinct anomalies near fractional filling of the columnar defects created by the irradiation. The anomalous behavior extends over a limited range of temperature and, in many crystals, is manifested by a minimum in {rho}{sub c}(H). The region of temperature-field where these anomalies appear coincides with that where two Josephson-plasma resonance lines have been recently observed. Our measurements directly show that a reduced pancake and phase slip mobility is associated with columnar defect filling in the vortex liquid state. {copyright} {ital 1998} {ital The American Physical Society}