Resonance behavior of embedded and freestanding microscale ferromagnets

被引：8

作者：

Cansever, Hamza ^{[1
]}

Anwar, Md Shadab ^{[1
,2
]}

Stienen, Sven ^{[1
]}

Lenz, Kilian ^{[1
]}

Narkowicz, Ryszard ^{[1
]}

Hlawacek, Gregor ^{[1
]}

Potzger, Kay ^{[1
]}

Hellwig, Olav ^{[1
,3
]}

Fassbender, Juergen ^{[1
,2
]}

Lindner, Juergen ^{[1
]}

Bali, Rantej ^{[1
]}

机构：

[1] Helmholtz Zentrum Dresden Rossendorf, Inst Ion Beam Phys & Mat Res, Bautzner Landstr 400, D-01328 Dresden, Germany

[2] Tech Univ Dresden, Inst Solid State & Mat Phys, D-01069 Dresden, Germany

[3] Tech Univ Chemnitz, Inst Phys, D-09126 Chemnitz, Germany

来源：

SCIENTIFIC REPORTS | 2022年 / 12卷 / 01期

关键词：

MAGNETIC-PROPERTIES; FE;

D O I：

10.1038/s41598-022-15959-0

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The ferromagnetic resonance of a disordered A2 Fe60Al40 ferromagnetic stripe, of dimensions 5 mu m x 1 mu m x 32 nm, has been observed in two vastly differing surroundings: in the first case, the ferromagnetic region was surrounded by ordered B2 Fe60Al40, and in the second case it was free standing, adhering only to the oxide substrate. The embedded ferromagnet possesses a periodic magnetic domain structure, which transforms to a single domain structure in the freestanding case. The two cases differ in their dynamic response, for instance, the resonance field for the uniform (k = 0) mode at similar to 14 GHz excitation displays a shift from 209 to 194 mT, respectively for the embedded and freestanding cases, with the external magnetic field applied along the long axis. The resonant behavior of a microscopic ferromagnet can thus be finely tailored via control of its near-interfacial surrounding.

引用

页数：7

共 46 条

[1] Depth-Adjustable Magnetostructural Phase Transition in Fe60V40 Thin Films [J].