Optically excited spin pumping mediating collective magnetization dynamics in a spin valve structure

被引：13

作者：

Danilov, A. P. ^{[1
]}

Scherbakov, A. V. ^{[1
,2
]}

Glavin, B. A. ^{[3
]}

Linnik, T. L. ^{[3
]}

Kalashnikova, A. M. ^{[2
]}

Shelukhin, L. A. ^{[2
]}

Pattnaik, D. P. ^{[4
]}

Rushforth, A. W. ^{[4
]}

Love, C. J. ^{[5
]}

Cavill, S. A. ^{[5
,6
]}

Yakovlev, D. R. ^{[1
,2
]}

Bayer, M. ^{[1
,2
]}

机构：

[1] Tech Univ Dortmund, Expt Phys 2, D-44227 Dortmund, Germany

[2] Ioffe Inst, St Petersburg 194021, Russia

[3] VE Lashkaryov Inst Semicond Phys, Dept Theoret Phys, UA-03028 Kiev, Ukraine

[4] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

[5] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England

[6] Diamond Light Source Chilton, Didcot OX11 0DE, Oxon, England

来源：

PHYSICAL REVIEW B | 2018年 / 98卷 / 06期

基金：

英国工程与自然科学研究理事会; 俄罗斯科学基金会;

关键词：

INSULATOR; HETEROSTRUCTURES; TEMPERATURE; PRECESSION;

D O I：

10.1103/PhysRevB.98.060406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate spin pumping, i.e., the generation of a pure spin current by precessing magnetization, without the application of microwave radiation commonly used in spin pumping experiments. We use femtosecond laser pulses to simultaneously launch the magnetization precession in each of two ferromagnetic layers of a galfenol-based spin valve and monitor the temporal evolution of the magnetizations. The spin currents generated by the precession cause a dynamic coupling of the two layers. This coupling has a dissipative character and is especially efficient when the precession frequencies in the two layers are in resonance, where coupled modes with strongly different decay rates are formed.

引用

页数：6

共 50 条

[21] Magnetization dynamics in synthetic antiferromagnets: Role of dynamical energy and mutual spin pumping
Sorokin, S.
Gallardo, R. A.
Fowley, C.
Lenz, K.
Titova, A.
Atcheson, G. Y. P.
Dennehy, G.
Rode, K.
Fassbender, J.
Lindner, J.
Deac, A. M.
PHYSICAL REVIEW B, 2020, 101 (14)
[22] Optically induced magnetization and ultrafast spin dynamics of magnetic ions in ionic crystals
Kohmoto, T
Nakazono, K
Furue, S
Kunitomo, M
Fukuda, Y
ULTRAFAST PHENOMENA XIV, 2005, 79 : 322 - 324
[23] Fast spin dynamics of optically induced magnetization in aqueous solutions of magnetic ions
Furue, S
Kohmoto, T
Kunitomo, M
Fukuda, Y
ULTRAFAST PHENOMENA XIV, 2005, 79 : 482 - 484
[24] Spin pumping by parametrically excited short-wavelength spin waves
Kurebayashi, H.
Dzyapko, O.
Demidov, V. E.
Fang, D.
Ferguson, A. J.
Demokritov, S. O.
APPLIED PHYSICS LETTERS, 2011, 99 (16)
[25] Influence of Magnetization on the Spin Pumping Efficiency in a Ferromagnet–Normal Metal Bilayer Structure
V. A. Atsarkin
V. V. Demidov
T. A. Shaikhulov
Journal of Experimental and Theoretical Physics, 2020, 130 : 228 - 234
[26] Spin Pumping by Parametrically Excited Exchange Magnons
Sandweg, C. W.
Kajiwara, Y.
Chumak, A. V.
Serga, A. A.
Vasyuchka, V. I.
Jungfleisch, M. B.
Saitoh, E.
Hillebrands, B.
PHYSICAL REVIEW LETTERS, 2011, 106 (21)
[27] All-metal lateral spin valve operated by spin pumping
Kuhlmann, Nils
Swoboda, Christian
Vogel, Andreas
Matsuyama, Toru
Meier, Guido
PHYSICAL REVIEW B, 2013, 87 (10):
[28] Exchange Spin Coupling in Optically Excited States
Steenbock, Torben
Rybakowski, Lawrence L. M.
Benner, Dominik
Herrmann, Carmen
Bester, Gabriel
JOURNAL OF CHEMICAL THEORY AND COMPUTATION, 2022, 18 (08) : 4708 - 4718
[29] Magnetization dynamics in microscopic spin-valve elements: Shortcomings of the macrospin picture
Wegelin, F.
Valdaitsev, D.
Krasyuk, A.
Nepijko, S. A.
Schonhense, G.
Elmers, H. J.
Krug, I.
Schneider, C. M.
PHYSICAL REVIEW B, 2007, 76 (13)
[30] Optically Driven Collective Spin Excitations and Magnetization Dynamics in the Neel-type Skyrmion Host GaV4S8
Padmanabhan, P.
Sekiguchi, F.
Versteeg, R. B.
Slivina, E.
Tsurkan, V
Bordacs, S.
Kezsmarki, I
van Loosdrecht, P. H. M.
PHYSICAL REVIEW LETTERS, 2019, 122 (10)

← 1 2 3 4 5 →