Changes in the in- and out-of-plane magnetic susceptibility of YBCO crystals with temperature and hole content

EPL (Europhysics Letters) Pub Date : 2012-06-01 DOI:10.1209/0295-5075/98/57011

I. Kokanović, J. Cooper, K. Iida

引用次数: 3

Abstract

We report new magnetic susceptibility and anisotropy data for single crystals of YBa2Cu3O6+x from x=0.38 to 0.95. We argue that the temperature (T) dependence of the magnetic anisotropy in the normal state well above Tc arises from a combination of the pseudogap and substantial g-factor anisotropy. With this interpretation we obtain onset temperatures for superconducting fluctuations over a wide range of x. For hole concentrations p<0.14 there are two extra contributions to the magnetic susceptibility and its anisotropy. We analyse these in terms of changes in the Van Vleck paramagnetism plus a significant paramagnetic contribution from an electron pocket at low fields in the region 0.084

查看原文本刊更多论文

YBCO晶体面内外磁化率随温度和空穴含量的变化

我们报道了YBa2Cu3O6+x单晶在x=0.38 ~ 0.95范围内的磁化率和各向异性的新数据。我们认为，温度(T)依赖于正常状态下远高于Tc的磁各向异性是由赝隙和大量g因子各向异性的组合引起的。通过这种解释，我们获得了在x宽范围内超导波动的起始温度。对于空穴浓度p<0.14，磁化率及其各向异性有两个额外的贡献。我们根据Van Vleck顺磁性的变化以及电子口袋在0.084

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

EPL (Europhysics Letters)

自引率

0.00%

发文量

京公网安备 11010802042870号

Book学术文献互助群
群号：481959085