Magnetoelastically coupled structural, magnetic, and superconducting order parameters in BaFe2(As1−xPx)2

作     者：H.-H. Kuo James G. Analytis J.-H. Chu R. M. Fernandes J. Schmalian I. R. Fisher 

作者机构：Stanford Institute for Materials and Energy Sciences SLAC National Accelerator Laboratory 2575 Sand Hill Road Menlo Park California 94025 USA Geballe Laboratory for Advanced Materials and Department of Materials Science and Engineering Stanford University USA Geballe Laboratory for Advanced Materials and Department of Applied Physics Stanford University USA Department of Physics Columbia University New York New York 10027 USA Theoretical Division Los Alamos National Laboratory Los Alamos New Mexico 87545 USA Institute for Theory of Condensed Matter Physics and Center for Functional Nanostructures Karlsruhe Institute of Technology Karlsruhe 76131 Germany 

出 版 物：《Physical Review B》 (物理学评论B辑：凝聚态物质与材料物理学)

年 卷 期：2012年第86卷第13期

页      面：134507-134507页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：National Science Foundation  NSF  (0968226) 

摘      要：We measure the transport properties of mechanically strained single crystals of BaFe2(As1−xPx)2 over a wide range of x. The Néel transition is extremely sensitive to stress and this sensitivity increases as optimal doping is approached (doping with the highest superconducting Tc), even though the magnetic transition itself is strongly suppressed. Furthermore, we observe significant changes in the superconducting transition temperature with applied strain, which mirror changes in the composition x. These experiments are a direct illustration of the intimate coupling between different degrees of freedom in iron-based superconductors, revealing the importance of magnetoelastic coupling to the magnetic and superconducting transition temperatures.