Effect of disorder on the magnetic properties of cubic Mn2RuxGa compounds: A first-principles study

被引：15

作者：

Galanakis, I. ^{[1
]}

Ozdogan, K. ^{[2
]}

Sasioglu, E. ^{[3
,4
,5
]}

Bluegel, S. ^{[3
,4
,5
]}

机构：

[1] Univ Patras, Sch Nat Sci, Dept Mat Sci, GR-26504 Patras, Greece

[2] Yildiz Tech Univ, Dept Phys, TR-34210 Istanbul, Turkey

[3] Forschungszentrum Julich, Peter Grunberg Inst, D-52425 Julich, Germany

[4] Forschungszentrum Julich, Inst Adv Simulat, D-52425 Julich, Germany

[5] JARA, D-52425 Julich, Germany

来源：

JOURNAL OF APPLIED PHYSICS | 2014年 / 116卷 / 03期

关键词：

BAND-STRUCTURE; SPINTRONICS;

D O I：

10.1063/1.4890229

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We perform first-principles electronic structure calculations to explain the anomalous magnetic behavior of the Mn2RuxGa compounds upon Ru doping as shown experimentally recently by Kurt et al. [Phys. Rev. Lett. 112, 027201 (2014)]. Our results suggest that disorder caused by the distribution of the Mn and Ru atoms at various sites reproduces the experimental data. All compounds present antiparallel alignment of the neighboring Mn magnetic moments and, with the exception of Mn2RuGa, none of them presents half metallic behavior. (C) 2014 AIP Publishing LLC.

引用

页数：4

共 16 条

[1] Spintronics: A challenge for materials science and solid-state chemistry [J].

Felser, Claudia ;

Fecher, Gerhard H. ;

Balke, Benjamin .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (05) :668-699

[2] Structural-induced antiferromagnetism in Mn-based full Heusler alloys: The case of Ni2MnAl [J].

Galanakis, I. ;

Sasioglu, E. .

APPLIED PHYSICS LETTERS, 2011, 98 (10)

[3] Origin and properties of the gap in the half-ferromagnetic Heusler alloys [J].

Galanakis, I ;

Dederichs, PH ;

Papanikolaou, N .

PHYSICAL REVIEW B, 2002, 66 (13) :1-10

[4] Slater-Pauling behavior and origin of the half-metallicity of the full-Heusler alloys [J].

Galanakis, I ;

Dederichs, PH ;

Papanikolaou, N .

PHYSICAL REVIEW B, 2002, 66 (17) :1-9

[5] Ab initio electronic and magnetic properties of half-metallic NiCrSi and NiMnSi Heusler alloys: The role of defects and interfaces [J].

Galanakis, I. ;

Ozdogan, K. ;

Sasioglu, E. .

JOURNAL OF APPLIED PHYSICS, 2008, 104 (08)

[6] Simple rules for the understanding of Heusler compounds [J].

Graf, Tanja ;

Felser, Claudia ;

Parkin, Stuart S. P. .

PROGRESS IN SOLID STATE CHEMISTRY, 2011, 39 (01) :1-50

[7] Future perspectives for spintronic devices [J].

Hirohata, Atsufumi ;

Takanashi, Koki .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2014, 47 (19)

[8] Half-metallic ferromagnets: From band structure to many-body effects [J].

Katsnelson, M. I. ;

Irkhin, V. Yu. ;

Chioncel, L. ;

Lichtenstein, A. I. ;

de Groot, R. A. .

REVIEWS OF MODERN PHYSICS, 2008, 80 (02) :315-378

[9] Full-potential nonorthogonal local-orbital minimum-basis band-structure scheme [J].

Koepernik, K ;

Eschrig, H .

PHYSICAL REVIEW B, 1999, 59 (03) :1743-1757

[10] Cubic Mn2Ga Thin Films: Crossing the Spin Gap with Ruthenium [J].

Kurt, H. ;

Rode, K. ;

Stamenov, P. ;

Venkatesan, M. ;

Lau, Y. -C. ;

Fonda, E. ;

Coey, J. M. D. .

PHYSICAL REVIEW LETTERS, 2014, 112 (02)

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