Magnetic structures of the Eu and Cr moments in EuCr2As2: Neutron diffraction study

被引：11

作者：

Nandi, S. ^{[1
]}

Xiao, Y. ^{[2
,3
]}

Qureshi, N. ^{[4
]}

Paramanik, U. B. ^{[1
]}

Jin, W. T. ^{[2
,3
,5
]}

Su, Y. ^{[5
]}

Ouladdiaf, B. ^{[4
]}

Hossain, Z. ^{[1
]}

Brueckel, Th. ^{[2
,3
,5
]}

机构：

[1] Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India

[2] Forschungszentrum Julich GmbH, JCNS, D-52425 Julich, Germany

[3] Forschungszentrum Julich GmbH, PGI, JARA FIT, D-52425 Julich, Germany

[4] Inst Laue Langevin, 71 Rue Martyrs,BP156, F-38042 Grenoble 9, France

[5] Forschungszentrum Julich GmbH, Outstn MLZ, JCNS, Lichtenbergstr 1, D-85747 Garching, Germany

来源：

PHYSICAL REVIEW B | 2016年 / 94卷 / 09期

关键词：

IRON-PNICTIDES; 43; K; SUPERCONDUCTIVITY; COMPOUND;

D O I：

10.1103/PhysRevB.94.094411

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic structures of the Eu2+ and Cr2+ moments in the nonsuperconducting parent compound EuCr2As2 have been determined by using neutron diffraction. While the Eu2+ moments order ferromagnetically with moments along the c direction at T-C = 21.0(1) K, the ordering temperature of the Cr2+ moments is found to be at very high temperature of 680(40) K by using magnetization measurements. The Cr2+ moments order in a G-type antiferromagnetic structure with moments along the c direction. According to this magnetic structure, the nearest-neighbor Cr2+ moments are antiferromagnetically aligned in the a-b plane as well as in the c direction. The ordered magnetic moment of the Eu2+ and Cr2+ amounts to 6.2(5)mu(B) and 1.7(4)mu(B), respectively, at T = 2K.

引用

页数：7

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