Magnetization dynamics of the ferrimagnet CoGd near the compensation of magnetization and angular momentum

被引：137

作者：

Binder, M. ^{[1
]}

Weber, A.

Mosendz, O.

Woltersdorf, G.

Izquierdo, M.

Neudecker, I.

Dahn, J. R.

Hatchard, T. D.

Thiele, J. -U.

Back, C. H.

Scheinfein, M. R.

机构：

[1] Univ Regensburg, Dept Phys, D-93040 Regensburg, Germany

[2] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada

[3] Synchrotron SOLEIL Lorme Merisiers St Aubin, F-91192 Gif Sur Yvette, France

[4] Dalhousie Univ, Dept Phys, Halifax, NS B3H 3J5, Canada

[5] Univ Alberta, Dept Chem, Edmonton, AB T6G 2M7, Canada

[6] San Jose Res Ctr, Hitachi Global Storage Technol, San Jose, CA 95120 USA

来源：

PHYSICAL REVIEW B | 2006年 / 74卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.74.134404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetization dynamics in alloys of ferrimagnetic CoGd have been studied in the vicinity of the magnetization and angular momentum compensation point as a function of alloy composition and temperature. In agreement with standard mean-field treatments of the dynamics of the total magnetization we observe an increase of the precessional frequency and the effective damping parameter near the angular momentum compensation point. We demonstrate the consistency of the magnetization dynamics extracted from frequency domain methods such as ferromagnetic resonance and time resolved laser pump-probe measurements.

引用

页数：5

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