Design of New Superconducting Materials, and Point-Contact Spectroscopy as a Probe of Strong Electron Correlations

被引:2
|
作者
Greene, Laura H. [1 ,2 ]
Arham, Hamood Z. [1 ,2 ]
Hunt, Cassandra R. [1 ,2 ]
Park, Wan Kyu [1 ,2 ]
机构
[1] Univ Illinois, Ctr Emergent Superconduct, Dept Phys, Urbana, IL USA
[2] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL USA
关键词
History of superconducting materials; Design of new superconductors; Point-contact spectroscopy; Fe-based superconductors; High-temperature superconductors; IRON; ANISOTROPY; STATE;
D O I
10.1007/s10948-012-1635-9
中图分类号
O59 [应用物理学];
学科分类号
摘要
At this centenary of the discovery of superconductivity, the design of new and more useful superconductors remains as enigmatic as ever. These materials play crucial roles both for fundamental science and applications, and they hold great promise in addressing our global energy challenge. The recent discovery of a new class of high-temperature superconductors has made the community more enthusiastic than ever about finding new superconductors. Historically, these discoveries were almost completely guided by serendipity, and now, researchers in the field have grown into an enthusiastic global network to find a way, together, to predictively design new superconductors. After a short history of discoveries of superconducting materials, we share our own guidelines for searching for high-temperature superconductors. Finally, we show how point-contact spectroscopy (PCS) is used to detect strong correlations in the normal state, with a focus on the normal state region of the Fe-based superconductors, defining a new region in the phase diagram of Ba(Fe1-x Co (x) )(2)As-2.
引用
收藏
页码:2121 / 2126
页数:6
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