The zero-moment half metal: How could it change spin electronics?

被引：21

作者：

Betto, Davide ^{[1
,2
]}

Rode, Karsten ^{[1
,2
]}

Thiyagarajah, Naganivetha ^{[1
,2
,4
]}

Lau, Yong-Chang ^{[1
,2
]}

Borisov, Kiril ^{[1
,2
]}

Atcheson, Gwenael ^{[1
,2
]}

Zic, Mario ^{[2
,3
]}

Archer, Thomas ^{[2
,3
]}

Stamenov, Plamen ^{[1
,2
]}

Coey, J. M. D. ^{[1
,2
]}

机构：

[1] Univ Dublin Trinity Coll, AMBER, CRANN, Dublin 2, Ireland

[2] Univ Dublin Trinity Coll, Sch Phys, Dublin 2, Ireland

[3] Univ Dublin Trinity Coll, CRANN, Dublin 2, Ireland

[4] Globalfundries, 60 Woodlands Ind Pk D St 2, Singapore 738406, Singapore

来源：

AIP ADVANCES | 2016年 / 6卷 / 05期

关键词：

D O I：

10.1063/1.4943756

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The Heusler compound Mn2RuxGa (MRG) may well be the first compensated half metal. Here, the structural, magnetic and transport properties of thin films of MRG are discussed. There is evidence of half-metallicity up to x = 0.7, and compensation of the two Mn sublattice moments is observed at specific compositions and temperatures, leading to a zero-moment half metal. There are potential benefits for using such films with perpendicular anisotropy for spin-torque magnetic tunnel junctions and oscillators, such as low critical current, high tunnel magnetoresistance ratio, insensitivity to external fields and resonance frequency in the THz range. (C) 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.

引用

页数：9

共 31 条

[1] Site-specific magnetism of half-metallic Mn2RuxGa thin films determined by x-ray absorption spectroscopy [J].

Betto, Davide ;

Thiyagarajah, Naganivetha ;

Lau, Yong-Chang ;

Piamonteze, Cinthia ;

Arrio, Marie-Anne ;

Stamenov, Plamen ;

Coey, J. M. D. ;

Rode, Karsten .

PHYSICAL REVIEW B, 2015, 91 (09)

[2] Magnetic semiconductors and half-metals [J].

Coey, JMD ;

Sanvito, S .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2004, 37 (07) :988-993

[3] Half-metallic ferromagnetism:: Example of CrO2 (invited) [J].

Coey, JMD ;

Venkatesan, M .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (10) :8345-8350

[4] NEW CLASS OF MATERIALS - HALF-METALLIC FERROMAGNETS [J].

DEGROOT, RA ;

MUELLER, FM ;

VANENGEN, PG ;

BUSCHOW, KHJ .

PHYSICAL REVIEW LETTERS, 1983, 50 (25) :2024-2027

[5]

DORLEIJN JWF, 1976, PHILIPS RES REP, V31, P287

[6]

Fowley C., 2015, UNPUB

[7] Effect of disorder on the magnetic properties of cubic Mn2RuxGa compounds: A first-principles study [J].

Galanakis, I. ;

Ozdogan, K. ;

Sasioglu, E. ;

Bluegel, S. .

JOURNAL OF APPLIED PHYSICS, 2014, 116 (03)

[8]

Gensch M., 2016, UNPUB

[9] 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

[10] Roadmap for Emerging Materials for Spintronic Device Applications [J].

Hirohata, Atsufumi ;

Sukegawa, Hiroaki ;

Yanagihara, Hideto ;

Zutic, Igor ;

Seki, Takeshi ;

Mizukami, Shigemi ;

Swaminathan, Raja .

IEEE TRANSACTIONS ON MAGNETICS, 2015, 51 (10)

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