Ferromagnetic resonance study of the misalignment between anisotropy axes in exchange-biased NiFe/FeMn/Co trilayers

被引：22

作者：

Barreto, P. G. ^{[1
]}

Sousa, M. A. ^{[1
]}

Pelegrini, F. ^{[2
]}

Alayo, W. ^{[3
]}

Litterst, F. J. ^{[4
]}

Baggio-Saitovitch, E. ^{[1
]}

机构：

[1] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil

[2] Univ Fed Goias, Inst Fis, Goiania, Go, Brazil

[3] Univ Fed Pelotas, Dept Fis, Pelotas, RS, Brazil

[4] Tech Univ Carolo Wilhelmina Braunschweig, Inst Phys Kondensierten Mat, D-38106 Braunschweig, Germany

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 20期

关键词：

MODEL;

D O I：

10.1063/1.4875929

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Exchange-biased NiFe/FeMn/Co trilayers were grown by dc magnetron sputtering and analyzed by in-plane ferromagnetic resonance using Q-band microwaves. The experiments revealed that distinct Co and NiFe resonance modes were excited by the microwave field. A misalignment between the anisotropy axes of the magnetic layers was deduced from the angular variations of the resonance fields, which also showed the effects of uniaxial and unidirectional anisotropies. A phenomenological model was used to fit the experimental results taking also into account a rotatable anisotropy field associated to the domain structure of the FeMn layer and the magnetic history of the films. (C) 2014 AIP Publishing LLC.

引用

页数：4

共 22 条

[1] Antiferromagnetic layer thickness dependence of noncollinear uniaxial and unidirectional anisotropies in NiFe/FeMn/CoFe trilayers [J].

Choi, Hyeok-Cheol ;

You, Chun-Yeol ;

Kim, Ki-Yeon ;

Lee, Jeong-Soo ;

Shim, Je-Ho ;

Kim, Dong-Hyun .

PHYSICAL REVIEW B, 2010, 81 (22)

[2] Interplay between exchange bias and uniaxial anisotropy in a ferromagnetic/antiferromagnetic exchange-coupled system [J].

Chung, SH ;

Hoffmann, A ;

Grimsditch, M .

PHYSICAL REVIEW B, 2005, 71 (21)

[3] THERMAL FLUCTUATION AFTEREFFECT MODEL FOR SOME SYSTEMS WITH FERROMAGNETIC-ANTIFERROMAGNETIC COUPLING [J].

FULCOMER, E ;

CHARAP, SH .

JOURNAL OF APPLIED PHYSICS, 1972, 43 (10) :4190-&

[4] Angular dependence of the exchange bias obtained from magnetization and ferromagnetic resonance measurements in exchange-coupled bilayers [J].

Geshev, J ;

Pereira, LG ;

Schmidt, JE .

PHYSICAL REVIEW B, 2001, 64 (18)

[5] A polycrystalline model for magnetic exchange bias [J].

Harres, A. ;

Geshev, J. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2012, 24 (32)

[6] Dynamic magnetic anisotropy at the onset of exchange bias: The NiFe/IrMn ferromagnet/antiferromagnet system [J].

McCord, J ;

Mattheis, R ;

Elefant, D .

PHYSICAL REVIEW B, 2004, 70 (09) :094420-1

[7] Nonlinear exchange coupling and magnetic domain asymmetry in ferromagnetic/IrMn thin films [J].

McCord, Jeffrey ;

Hamann, Christine ;

Schaefer, Rudolf ;

Schultz, Ludwig ;

Mattheis, Roland .

PHYSICAL REVIEW B, 2008, 78 (09)

[8] Ferromagnetic resonance studies of NiO-coupled thin films of Ni80Fe20 [J].

McMichael, RD ;

Stiles, MD ;

Chen, PJ ;

Egelhoff, WF .

PHYSICAL REVIEW B, 1998, 58 (13) :8605-8612

[9] Use of the anisotropic magnetoresistance to measure exchange anisotropy in Co/CoO bilayers [J].

Miller, BH ;

Dahlberg, ED .

APPLIED PHYSICS LETTERS, 1996, 69 (25) :3932-3934

[10] Spin waves in exchange-biased Fe/FeF2 [J].

Miltényi, P ;

Gruyters, M ;

Güntherodt, G ;

Nogués, J ;

Schuller, IK .

PHYSICAL REVIEW B, 1999, 59 (05) :3333-3336

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