Hysteretic behavior in the optical response of the underdoped Fe-arsenide Ba(Fe1-xCox)2As2 in the electronic nematic phase

被引：24

作者：

Mirri, C. ^{[1
]}

Dusza, A. ^{[1
]}

Bastelberger, S. ^{[1
]}

Chu, J. -H. ^{[2
,3
,4
]}

Kuo, H. -H. ^{[2
,3
,4
]}

Fisher, I. R. ^{[2
,3
,4
]}

Degiorgi, L. ^{[1
]}

机构：

[1] ETH, Festkorperphys Lab, CH-8093 Zurich, Switzerland

[2] SLAC Natl Accelerator Lab, Stanford Inst Mat & Energy Sci, Menlo Pk, CA 94025 USA

[3] Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA

[4] Stanford Univ, Stanford Dept Appl Phys, Stanford, CA 94305 USA

来源：

PHYSICAL REVIEW B | 2014年 / 89卷 / 06期

关键词：

DETWINNED BA(FE1-XCOX)(2)AS-2; SUPERCONDUCTOR; CA(FE1-XCOX)(2)AS-2; TRANSITION; ANISOTROPY; STATE;

D O I：

10.1103/PhysRevB.89.060501

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We use a new technique that allows in situ variation of uniaxial stress to probe the polarization dependence of the optical reflectivity of the representative underdoped iron-arsenide Ba(Fe1-xCox)(2)As-2 through the tetragonal-to-orthorhombic structural transition and with respect to their electronic nematic phase. These measurements reveal a hysteretic behavior of the anisotropic optical response to uniaxial stress in the orthorhombic state associated with twin boundary motion, whereas the pressure-induced anisotropy of the optical response is reversible in the tetragonal state.

引用

页数：5

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