Frequency-selective control of ferromagnetic resonance linewidth in magnetic multilayers

被引：8

作者：

Schaefer, S. ^{[1
]}

Pachauri, N. ^{[1
]}

Mewes, C. K. A. ^{[1
]}

Mewes, T. ^{[1
]}

Kaiser, C. ^{[2
]}

Leng, Q. ^{[2
]}

Pakala, M. ^{[2
]}

机构：

[1] Univ Alabama, Dept Phys & Astron, MINT Ctr, Tuscaloosa, AL 35487 USA

[2] Western Digital, Fremont, CA 94539 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 03期

关键词：

SCATTERING; ROUGHNESS; FUTURE; METALS; FILMS;

D O I：

10.1063/1.3678025

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on a frequency-specific linewidth broadening of the ferromagnetic resonance (FMR) mode of a NiFe free layer within a magnetic multilayer stack. The FMR studies reveal a significant broadening of the FMR linewidth of the free layer at frequencies where this resonance is degenerate with FMR modes stemming from other layers within the multilayer stack. By pinning part of the magnetic multilayer to an antiferromagnet, we tailor a ferromagnetic linewidth behavior that is anisotropic for a specific frequency. (C) 2012 American Institute of Physics. [doi:10.1063/1.3678025]

引用

页数：3

共 24 条

[1] DIPOLAR INTERACTION AND ITS INTERPLAY WITH INTERFACE ROUGHNESS [J].

ALTBIR, D ;

KIWI, M ;

RAMIREZ, R ;

SCHULLER, IK .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 149 (03) :L246-L250

[2] Spin-transfer pulse switching: From the dynamic to the thermally activated regime [J].

Bedau, D. ;

Liu, H. ;

Sun, J. Z. ;

Katine, J. A. ;

Fullerton, E. E. ;

Mangin, S. ;

Kent, A. D. .

APPLIED PHYSICS LETTERS, 2010, 97 (26)

[3] Advances and Future Prospects of Spin-Transfer Torque Random Access Memory [J].

Chen, E. ;

Apalkov, D. ;

Diao, Z. ;

Driskill-Smith, A. ;

Druist, D. ;

Lottis, D. ;

Nikitin, V. ;

Tang, X. ;

Watts, S. ;

Wang, S. ;

Wolf, S. A. ;

Ghosh, A. W. ;

Lu, J. W. ;

Poon, S. J. ;

Stan, M. ;

Butler, W. H. ;

Gupta, S. ;

Mewes, C. K. A. ;

Mewes, Tim ;

Visscher, P. B. .

IEEE TRANSACTIONS ON MAGNETICS, 2010, 46 (06) :1873-1878

[4] Double-contact spin-torque nano-oscillator with optimized spin-wave coupling: Micromagnetic modeling [J].

Choi, Sangkook ;

Kim, Sang-Koog ;

Demidov, Vladislav E. ;

Demokritov, Sergej O. .

APPLIED PHYSICS LETTERS, 2007, 90 (08)

[5] Spin wave excitations of a magnetic pillar with dipolar coupling between the layers [J].

Dmytriiev, O. ;

Meitzler, T. ;

Bankowski, E. ;

Slavin, A. ;

Tiberkevich, V. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2010, 22 (13)

[6] A phenomenological theory of damping in ferromagnetic materials [J].

Gilbert, TL .

IEEE TRANSACTIONS ON MAGNETICS, 2004, 40 (06) :3443-3449

[7] STRUCTURAL AND MAGNETIC-PROPERTIES OF ULTRATHIN NI/FE BILAYERS GROWN EPITAXIALLY ON AG(001) [J].

HEINRICH, B ;

PURCELL, ST ;

DUTCHER, JR ;

URQUHART, KB ;

COCHRAN, JF ;

ARROTT, AS .

PHYSICAL REVIEW B, 1988, 38 (18) :12879-12896

[8] FMR LINEBROADENING IN METALS DUE TO 2-MAGNON SCATTERING [J].

HEINRICH, B ;

COCHRAN, JF ;

HASEGAWA, R .

JOURNAL OF APPLIED PHYSICS, 1985, 57 (08) :3690-3692

[9]

Heinrich B., 2003, PHYS REV LETT, V90, P7

[10] Theory of two magnon scattering microwave relaxation and ferromagnetic resonance linewidth in magnetic thin films [J].

Hurben, MJ ;

Patton, CE .

JOURNAL OF APPLIED PHYSICS, 1998, 83 (08) :4344-4365

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