Dichotomy between in-plane magnetic susceptibility and resistivity anisotropies in extremely strained BaFe2As2

被引：42

作者：

He, Mingquan ^{[1
]}

Wang, Liran ^{[1
]}

Ahn, Felix ^{[2
]}

Hardy, Frederic ^{[1
]}

Wolf, Thomas ^{[1
]}

Adelmann, Peter ^{[1
]}

Schmalian, Joerg ^{[1
,3
]}

Eremin, Ilya ^{[2
,4
]}

Meingast, Christoph ^{[1
]}

机构：

[1] Karlsruhe Inst Technol, Inst Solid State Phys, D-76021 Karlsruhe, Germany

[2] Ruhr Univ Bochum, Inst Theoret Phys 3, D-44801 Bochum, Germany

[3] Karlsruhe Inst Technol, Inst Theory Condensed Matter, D-76131 Karlsruhe, Germany

[4] Natl Univ Sci & Technol MISiS, Moscow 119049, Russia

来源：

NATURE COMMUNICATIONS | 2017年 / 8卷

关键词：

NEMATIC SUSCEPTIBILITY; IRON; SUPERCONDUCTIVITY; ORDER;

D O I：

10.1038/s41467-017-00712-3

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

High-temperature superconductivity in the Fe-based materials emerges when the antiferromagnetism of the parent compounds is suppressed by either doping or pressure. Closely connected to the antiferromagnetic state are entangled orbital, lattice, and nematic degrees of freedom, and one of the major goals in this field has been to determine the hierarchy of these interactions. Here we present the direct measurements and the calculations of the inplane uniform magnetic susceptibility anisotropy of BaFe2As2, which help in determining the above hierarchy. The magnetization measurements are made possible by utilizing a simple method for applying a large symmetry-breaking strain, based on differential thermal expansion. In strong contrast to the large resistivity anisotropy above the antiferromagnetic transition at TN, the anisotropy of the in-plane magnetic susceptibility develops largely below TN. Our results imply that lattice and orbital degrees of freedom play a subdominant role in these materials.

引用

页数：6

共 61 条

[1] Sign-reversal of the in-plane resistivity anisotropy in hole-doped iron pnictides [J].

Blomberg, E. C. ;

Tanatar, M. A. ;

Fernandes, R. M. ;

Mazin, I. I. ;

Shen, Bing ;

Wen, Hai-Hu ;

Johannes, M. D. ;

Schmalian, J. ;

Prozorov, R. .

NATURE COMMUNICATIONS, 2013, 4

[2] Superconductivity-induced re-entrance of the orthorhombic distortion in Ba1-xKxFe2As2 [J].

Boehmer, A. E. ;

Hardy, F. ;

Wang, L. ;

Wolf, T. ;

Schweiss, P. ;

Meingast, C. .

NATURE COMMUNICATIONS, 2015, 6

[3] Nematic Susceptibility of Hole-Doped and Electron-Doped BaFe2As2 Iron-Based Superconductors from Shear Modulus Measurements [J].

Boehmer, A. E. ;

Burger, P. ;

Hardy, F. ;

Wolf, T. ;

Schweiss, P. ;

Fromknecht, R. ;

Reinecker, M. ;

Schranz, W. ;

Meingast, C. .

PHYSICAL REVIEW LETTERS, 2014, 112 (04)

[4] Lack of coupling between superconductivity and orthorhombic distortion in stoichiometric single-crystalline FeSe [J].

Boehmer, A. E. ;

Hardy, F. ;

Eilers, F. ;

Ernst, D. ;

Adelmann, P. ;

Schweiss, P. ;

Wolf, T. ;

Meingast, C. .

PHYSICAL REVIEW B, 2013, 87 (18)

[5] Electronic nematic susceptibility of iron-based superconductors [J].

Boehmer, Anna E. ;

Meingast, Christoph .

COMPTES RENDUS PHYSIQUE, 2016, 17 (1-2) :90-112

[6] Direct observation of spin-orbit coupling in iron-based superconductors [J].

Borisenko, S. V. ;

Evtushinsky, D. V. ;

Liu, Z-H. ;

Morozov, I. ;

Kappenberger, R. ;

Wurmehl, S. ;

Buechner, B. ;

Yaresko, A. N. ;

Kim, T. K. ;

Hoesch, M. ;

Wolf, T. ;

Zhigadlo, N. D. .

NATURE PHYSICS, 2016, 12 (04) :311-U145

[7] Spin reorientation driven by the interplay between spin-orbit coupling and Hund's rule coupling in iron pnictides [J].

Christensen, Morten H. ;

Kang, Jian ;

Andersen, Brian M. ;

Eremin, Ilya ;

Fernandes, Rafael M. .

PHYSICAL REVIEW B, 2015, 92 (21)

[8] Divergent Nematic Susceptibility in an Iron Arsenide Superconductor [J].

Chu, Jiun-Haw ;

Kuo, Hsueh-Hui ;

Analytis, James G. ;

Fisher, Ian R. .

SCIENCE, 2012, 337 (6095) :710-712

[9] In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor [J].

Chu, Jiun-Haw ;

Analytis, James G. ;

De Greve, Kristiaan ;

McMahon, Peter L. ;

Islam, Zahirul ;

Yamamoto, Yoshihisa ;

Fisher, Ian R. .

SCIENCE, 2010, 329 (5993) :824-826

[10] In-plane electronic anisotropy in underdoped Ba(Fe1-xCox)2As2 revealed by partial detwinning in a magnetic field [J].

Chu, Jiun-Haw ;

Analytis, James G. ;

Press, David ;

De Greve, Kristiaan ;

Ladd, Thaddeus D. ;

Yamamoto, Yoshihisa ;

Fisher, Ian R. .

PHYSICAL REVIEW B, 2010, 81 (21)

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