arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1701.06372cond-mat.supr-concond-mat.mes-hall
收藏

超导异质结构中的热自旋效应

Thermospin effects in superconducting heterostructures

I. V. Bobkova, A. M. Bobkov

摘要:

最近热产生的纯自旋电流塞曼分裂超导体/正常金属异质结的预测。在这里,它表明,这种“热自旋”电流可以导致一个系统中的纯自旋不平衡的积累。热致自旋不平衡可以达到超导态的塞曼分裂,并强烈影响异质结构中的超导电性。根据超导体和正常库之间的温差,它可以提高超导体的临界温度或另外抑制零温度超导状态。最后一种可能性产生了一种不寻常的超导状态,它在有限的温度下开始发展。

英文摘要:

Recently thermally created pure spin currents were predicted for Zeeman-split superconductor/normal metal heterostructures. Here it is shown that this "thermospin" current can lead to an accumulation of a pure spin imbalance in a system. The thermally induced spin imbalance can reach the value of Zeeman splitting of the superconducting DOS and strongly influences superconductivity in the heterostructure. Depending on the temperature difference between the superconductor and the normal reservoir it can enhance the critical temperature of the superconductor or additionally suppress the zero-temperature superconducting state. The last possibility gives rise to an unusual superconducting state, which starts to develop at finite temperature.

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。

↑