Ultrafast coherent all-optical switching of an antiferromagnet with the inverse Faraday effect

被引：20

作者：

Dannegger, Tobias ^{[1
]}

Berritta, Marco ^{[2
]}

Carva, Karel ^{[3
]}

Selzer, Severin ^{[1
]}

Ritzmann, Ulrike ^{[2
,4
,5
]}

Oppeneer, Peter M. ^{[2
]}

Nowak, Ulrich ^{[1
]}

机构：

[1] Univ Konstanz, Fachbereich Phys, D-78457 Constance, Germany

[2] Uppsala Univ, Dept Phys & Astron, Box 516, SE-75120 Uppsala, Sweden

[3] Charles Univ Prague, Fac Math & Phys, Dept Condensed Matter Phys, CZ-12116 Prague, Czech Republic

[4] Free Univ Berlin, Dahlem Ctr Complex Quantum Syst, D-14195 Berlin, Germany

[5] Free Univ Berlin, Dept Phys, D-14195 Berlin, Germany

来源：

PHYSICAL REVIEW B | 2021年 / 104卷 / 06期

基金：

瑞典研究理事会;

关键词：

EXCHANGE INTERACTIONS; MAGNETIZATION; REVERSAL;

D O I：

10.1103/PhysRevB.104.L060413

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We explore the possibility of ultrafast, coherent all-optical magnetization switching in antiferromagnets by studying the action of the inverse Faraday effect in CrPt, an easy-plane antiferromagnet. Using a combination of density-functional theory and atomistic spin dynamics simulations, we show how a circularly polarized laser pulse can switch the order parameter of the antiferromagnet within a few hundred femtoseconds. This nonthermal switching takes place on an elliptical path, driven by the staggered magnetic moments induced by the inverse Faraday effect and leading to reliable switching between two perpendicular magnetic states.

引用

页数：6

共 45 条

[1]

ANISIMOV SI, 1974, ZH EKSP TEOR FIZ+, V66, P776

[2]

[Anonymous], 1974, PHYS JETP

[3] Ultrafast spin dynamics in ferromagnetic nickel [J].

Beaurepaire, E ;

Merle, JC ;

Daunois, A ;

Bigot, JY .

PHYSICAL REVIEW LETTERS, 1996, 76 (22) :4250-4253

[4] Ab Initio Theory of Coherent Laser-Induced Magnetization in Metals [J].

Berritta, Marco ;

Mondal, Ritwik ;

Carva, Karel ;

Oppeneer, Peter M. .

PHYSICAL REVIEW LETTERS, 2016, 117 (13)

[5] THERMAL FLUCTUATIONS OF A SINGLE-DOMAIN PARTICLE [J].

BROWN, WF .

PHYSICAL REVIEW, 1963, 130 (05) :1677-+

[6] Magnetization reversal of a multilayered FeGd dot array imaged by transmission x-ray microscopy [J].

Eimüller, T ;

Fischer, P ;

Schütz, G ;

Scholz, M ;

Bayreuther, G ;

Guttmann, P ;

Schmahl, G ;

Köhler, M .

JOURNAL OF APPLIED PHYSICS, 2001, 89 (11) :7162-7164

[7] Materials and devices for all-optical helicity-dependent switching [J].

El Hadri, Mohammed Salah ;

Hehn, Michel ;

Malinowski, Gregory ;

Mangin, Stephane .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2017, 50 (13)

[8] Switching times of nanoscale FePt: Finite size effects on the linear reversal mechanism [J].

Ellis, M. O. A. ;

Chantrell, R. W. .

APPLIED PHYSICS LETTERS, 2015, 106 (16)

[9] All-optical switching in granular ferromagnets caused by magnetic circular dichroism [J].

Ellis, Matthew O. A. ;

Fullerton, Eric E. ;

Chantrell, Roy W. .

SCIENTIFIC REPORTS, 2016, 6

[10] Anisotropic magnetoresistance in an antiferromagnetic semiconductor [J].

Fina, I. ;

Marti, X. ;

Yi, D. ;

Liu, J. ;

Chu, J. H. ;

Rayan-Serrao, C. ;

Suresha, S. ;

Shick, A. B. ;

Zelezny, J. ;

Jungwirth, T. ;

Fontcuberta, J. ;

Ramesh, R. .

NATURE COMMUNICATIONS, 2014, 5

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