Hg基超导薄膜霍尔电导率的温度标度行为
超导电性
2009-10-31 v1
摘要
研究了磁场平行于c轴时HgBa_{2}CaCu_{2}O_{6+\delta}和HgBa_{2}Ca_{2}Cu_{3}O_{8+\delta}薄膜的霍尔电导率。这些化合物的混合态霍尔电导率可由\sigma_{xy}=C_{1}/H+C_{2}+C_{3}H很好地描述。前因子C_1在T_c附近呈现C_1 = A(1-t)^n的温度依赖形式，其中t=T/T_c为约化温度。与先前结果相反，C_2也遵循类似于系数C_1的温度标度行为。观测到的n值为1.8-2.3，与YBa_{2}Cu_{3}O_{7-\delta}和La_{2-x}Sr_{x}CuO_{4}先前观测到的值相当。
引用
@article{arxiv.cond-mat/9904385,
title = {Temperature-scaling behavior of the Hall conductivity for Hg-based superconducting thin films},
author = {Wan-Seon Kim and W. N. Kang and S. J. Oh and Mun-Seog Kim and Yujoung Bai and Sung-Ik Lee and Chang Ho Choi and H. -C. Ri},
journal= {arXiv preprint arXiv:cond-mat/9904385},
year = {2009}
}
备注
5 pages, 4 eps figures