Magnetization dynamics in dilute Pd1-xFex thin films and patterned microstructures considered for superconducting electronics

被引：26

作者：

Golovchanskiy, I. A. ^{[1
,2
]}

Bolginov, V. V. ^{[2
,3
]}

Abramov, N. N. ^{[2
]}

Stolyarov, V. S. ^{[1
,3
,4
]}

Ben Hamida, A. ^{[2
]}

Chichkov, V. I. ^{[2
]}

Roditchev, D. ^{[5
,6
]}

Ryazanov, V. V. ^{[1
,2
,3
,4
]}

机构：

[1] State Univ, Moscow Inst Phys & Technol, 9 Inst Skiy Per, Dolgoprudnyi 141700, Moscow Region, Russia

[2] Natl Univ Sci & Technol MISIS, 4 Leninsky Prospect, Moscow 119049, Russia

[3] Inst Solid State Phys ISSP RAS, Chernogolovka 142432, Moscow Region, Russia

[4] Kazan Fed Univ, Dept Solid State Phys, Kazan 420008, Russia

[5] CNRS, ESPCI ParisTech, Lab Phys & Etud Mat, 10 Rue Vauquelin, F-75005 Paris, France

[6] UPMC Univ Paris 6, UMR 8213, 10 Rue Vauquelin, F-75005 Paris, France

来源：

JOURNAL OF APPLIED PHYSICS | 2016年 / 120卷 / 16期

基金：

俄罗斯基础研究基金会; 俄罗斯科学基金会;

关键词：

JOSEPHSON-JUNCTION TECHNOLOGY; DEMAGNETIZING FACTORS; RESONANCE; FIELD; PD; ANISOTROPY; FREQUENCY; COBALT; ALLOYS; FE;

D O I：

10.1063/1.4965991

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Motivated by recent burst of applications of ferromagnetic layers in superconducting digital and quantum elements, we study the magnetism of thin films and patterned microstructures of Pd0.99Fe0.01. In this diluted ferromagnetic system, a high-sensitivity ferromagnetic resonance (FMR) experiment reveals spectroscopic signatures of re-magnetization and enables the estimation of the saturation magnetization, the anisotropy field, and the Gilbert damping constant. The detailed analysis of FMR spectra links the observed unexpectedly high reduced anisotropy field (0.06-0.14) with the internal anisotropy, points towards a cluster nature of the ferromagnetism, and allows estimating characteristic time scale for magnetization dynamics in Pd-Fe based cryogenic memory elements to (3 - 5) x 10(-)9 s. Published by AIP Publishing.

引用

页数：6

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