Precessional damping of Fe magnetic moments in a FeNi film

被引：13

作者：

Buschhorn, Stefan ^{[1
]}

Bruessing, Frank ^{[1
]}

Abrudan, Radu ^{[1
]}

Zabel, Hartmut ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Inst Expt Phys Festkorperphys, D-44780 Bochum, Germany

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2011年 / 44卷 / 16期

关键词：

FERROMAGNETIC-RESONANCE; DYNAMICS; FIELD;

D O I：

10.1088/0022-3727/44/16/165001

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the element-resolved precessional dynamics of Fe magnetic moments in a homogeneous FeNi thin film. In our pump-probe experiment the magnetic system is excited by a magnetic field pulse from a stripline. The instantaneous response to the field-pulse excitation is monitored as a function of time in a stroboscopic measurement using element-selective x-ray resonant magnetic scattering (XRMS). Our data show that Fe and Ni moments are aligned parallel to each other at all times, while they oscillate around the effective field direction given by the step field pulse and applied bias field. The field dependence of the precessional motion and damping of Fe magnetic moments is analysed and compared with time-resolved magneto-optical Kerr effect (tr-MOKE) measurement data from the literature, showing good agreement. Additional studies prove the capability of our setup to conduct temperature-dependent studies. In the case of the presented FeNi system no changes in the frequency or damping behaviour are observed within a temperature range of 150-350 K.

引用

页数：8

共 27 条

[1] INSTABILITY IN THE MOTION OF FERROMAGNETS AT HIGH MICROWAVE POWER LEVELS [J].

ANDERSON, PW ;

SUHL, H .

PHYSICAL REVIEW, 1955, 100 (06) :1788-1790

[2] Combined time-resolved x-ray magnetic circular dichroism and ferromagnetic resonance studies of magnetic alloys and multilayers (invited) [J].

Arena, D. A. ;

Vescovo, E. ;

Kao, C.-C. ;

Guan, Y. ;

Bailey, W. E. .

JOURNAL OF APPLIED PHYSICS, 2007, 101 (09)

[3] Precessional dynamics of elemental moments in a ferromagnetic alloy [J].

Bailey, WE ;

Cheng, L ;

Keavney, DJ ;

Kao, CC ;

Vescovo, E ;

Arena, DA .

PHYSICAL REVIEW B, 2004, 70 (17) :1-4

[4] Suppression of magnetic-field pulse-induced magnetization precession by pulse tailoring [J].

Bauer, M ;

Lopusnik, R ;

Fassbender, J ;

Hillebrands, B .

APPLIED PHYSICS LETTERS, 2000, 76 (19) :2758-2760

[5] X-ray resonant magnetic scattering study of [Co2MnGe/Au]n and[Co2MnGe/V]n multilayers [J].

Bergmann, A ;

Grabis, J ;

Nefedov, A ;

Westerholt, K ;

Zabel, H .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2006, 39 (05) :842-850

[6] Double-resonant x-ray and microwave absorption: Atomic spectroscopy of precessional orbital and spin dynamics [J].

Boero, G. ;

Rusponi, S. ;

Bencok, P. ;

Meckenstock, R. ;

Thiele, J-U. ;

Nolting, F. ;

Gambardella, P. .

PHYSICAL REVIEW B, 2009, 79 (22)

[7] Adaption of a diffractometer for time-resolved X-ray resonant magnetic scattering [J].

Buschhorn, Stefan ;

Bruessing, Frank ;

Abrudan, Radu ;

Zabel, Hartmut .

JOURNAL OF SYNCHROTRON RADIATION, 2011, 18 :212-216

[8] Subnanosecond magnetization dynamics measured by the second-harmonic magneto-optic Kerr effect [J].

Crawford, TM ;

Silva, TJ ;

Teplin, CW ;

Rogers, CT .

APPLIED PHYSICS LETTERS, 1999, 74 (22) :3386-3388

[9] Ferromagnetic resonance of ultrathin metallic layers [J].

Farle, M .

REPORTS ON PROGRESS IN PHYSICS, 1998, 61 (07) :755-826

[10] Large-angle magnetization dynamics investigated by vector-resolved magnetization-induced optical second-harmonic generation [J].

Gerrits, T ;

Silva, TJ ;

Nibarger, JP ;

Rasing, T .

JOURNAL OF APPLIED PHYSICS, 2004, 96 (11) :6023-6028

← 1 2 3 →