arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2203.00542cond-mat.str-elcond-mat.supr-con
收藏

掺杂莫特绝缘体的霍尔效应:DMFT近似

Hall effect in doped Mott insulator: DMFT-approximation

E. Z. Kuchinskii, N. A. Kuleeva, D. I. Khomskii, M. V. Sadovskii

摘要:

在动力学平均场论的框架下,分析了掺杂莫特绝缘体作为母体铜氧化物超导体的霍尔效应。我们考虑部分填充(空穴掺杂)的下哈伯德带和计算霍尔系数和霍尔数的依赖空穴掺杂,确定的临界浓度的霍尔系数的符号变化。注意到霍尔效应的显著温度依赖性。结果表明,在YBCO的正常状态下,霍尔数的浓度依赖性与实验结果吻合得很好。

英文摘要:

In the framework of dynamical mean field theory (DMFT) we analyze Hall effect in doped Mott insulator as a parent cuprate superconductor. We consider the partial filling (hole doping) of the lower Hubbard band and calculate the dependence of Hall coefficient and Hall number on hole doping, determining the critical concentration for sign change of the Hall coefficient. Significant temperature dependence of Hall effect is noted. A good agreement is demonstrated with concentration dependence of Hall number obtained in experiments in the normal state of YBCO.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑