Voltage-controlled magnetic anisotropy in antiferromagnetic MgO-capped MnPt films

被引：18

作者：

Chang, P-H ^{[1
,2
]}

Fang, W. ^{[1
,2
]}

Ozaki, T. ^{[3
]}

Belashchenko, K. D. ^{[1
,2
]}

机构：

[1] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA

[2] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA

[3] Univ Tokyo, Inst Solid State Phys, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778581, Japan

来源：

PHYSICAL REVIEW MATERIALS | 2021年 / 5卷 / 05期

基金：

美国国家科学基金会;

关键词：

Ferromagnetic materials - Film thickness - Binary alloys - Thick films - Magnetism - Platinum alloys - Calculations - Magnetic storage - Manganese alloys;

D O I：

10.1103/PhysRevMaterials.5.054406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic anisotropy in MgO-capped MnPt films and its voltage control are studied using first-principles calculations. Sharp variation of the magnetic anisotropy with film thickness, especially in the Pt-terminated film, suggests that it may be widely tuned by adjusting the film thickness. In thick films the linear voltage control coefficient is as large as 1.5 and -0.6 pJ/Vm for Pt-terminated and Mn-terminated interfaces, respectively. The combination of a widely tunable magnetic anisotropy energy and a large voltage-control coefficient suggest that MgO-capped MnPt films can serve as a versatile platform for magnetic memory and antiferromagnonic applications.

引用

页数：6

共 71 条

[1]

Amiri Pedram Khalili, 2012, SPIN, V2, DOI 10.1142/S2010324712400024

[2] EQUIATOMIC TRANSITION METAL ALLOYS OF MANGANESE .4. A NEUTRON DIFFRACTION STUDY OF MAGNETIC ORDERING IN PTMN PHASE [J].

ANDRESEN, AF ;

KJEKSHUS, A ;

MOLLERUD, R ;

PEARSON, WB .

PHILOSOPHICAL MAGAZINE, 1965, 11 (114) :1245-&

[3] Constituents of magnetic anisotropy and a screening of spin-orbit coupling in solids [J].

Antropov, Vladimir ;

Ke, Liqin ;

Aberg, Daniel .

SOLID STATE COMMUNICATIONS, 2014, 194 :35-38

[4] Efficient Spin Torques in Antiferromagnetic CoO/Pt Quantified by Comparing Field- and Current-Induced Switching [J].

Baldrati, L. ;

Schmitt, C. ;

Gomonay, O. ;

Lebrun, R. ;

Ramos, R. ;

Saitoh, E. ;

Sinova, J. ;

Klaeui, M. .

PHYSICAL REVIEW LETTERS, 2020, 125 (07)

[5] Antiferromagnetic spintronics [J].

Baltz, V. ;

Manchon, A. ;

Tsoi, M. ;

Moriyama, T. ;

Ono, T. ;

Tserkovnyak, Y. .

REVIEWS OF MODERN PHYSICS, 2018, 90 (01)

[6] PRESSURE AND TEMPERATURE-DEPENDENCE OF STATIC DIELECTRIC-CONSTANTS OF KCL, NACL, LIF, AND MGO [J].

BARTELS, RA ;

SMITH, PA .

PHYSICAL REVIEW B, 1973, 7 (08) :3885-3892

[7] Experimental confirmation of quantum oscillations of magnetic anisotropy in Co/Cu(001) [J].

Bauer, U. ;

Dabrowski, M. ;

Przybylski, M. ;

Kirschner, J. .

PHYSICAL REVIEW B, 2011, 84 (14)

[8] Voltage-gated modulation of domain wall creep dynamics in an ultrathin metallic ferromagnet [J].

Bauer, Uwe ;

Emori, Satoru ;

Beach, Geoffrey S. D. .

APPLIED PHYSICS LETTERS, 2012, 101 (17)

[9] Electric-field control of domain wall nucleation and pinning in a metallic ferromagnet [J].

Bernand-Mantel, A. ;

Herrera-Diez, L. ;

Ranno, L. ;

Pizzini, S. ;

Vogel, J. ;

Givord, D. ;

Auffret, S. ;

Boulle, O. ;

Miron, I. M. ;

Gaudin, G. .

APPLIED PHYSICS LETTERS, 2013, 102 (12)

[10] PROJECTOR AUGMENTED-WAVE METHOD [J].

BLOCHL, PE .

PHYSICAL REVIEW B, 1994, 50 (24) :17953-17979

← 1 2 3 4 5 6 7 8 →