Lei Hechang, Wang Kefeng, Hu Rongwei, Ryu Hyejin, Abeykoon Milinda, Bozin Emil S, Petrovic Cedomir
Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, USA.
Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, USA; Center for Nanophysics, and Advanced Materials, and Department of Physics, University of Maryland, College Park, MD 20742-4111, USA.
Sci Technol Adv Mater. 2012 Dec 28;13(5):054305. doi: 10.1088/1468-6996/13/5/054305. eCollection 2012 Oct.
Iron chalcogenide superconductors have become one of the most investigated superconducting materials in recent years due to high upper critical fields, competing interactions and complex electronic and magnetic phase diagrams. The structural complexity, defects and atomic site occupancies significantly affect the normal and superconducting states in these compounds. In this work we review the vortex behavior, critical current density and high magnetic field pair-breaking mechanism in iron chalcogenide superconductors. We also point to relevant structural features and normal-state properties.
近年来,由于具有高的上临界场、竞争相互作用以及复杂的电子和磁相图,硫族铁化物超导体已成为研究最多的超导材料之一。结构复杂性、缺陷和原子占位显著影响这些化合物的正常态和超导态。在这项工作中,我们综述了硫族铁化物超导体中的涡旋行为、临界电流密度和高磁场对破坏机制。我们还指出了相关的结构特征和正常态性质。