Determination of the out-of-plane anisotropy contributions (first and second anisotropy terms) in amorphous Nd-Co thin films by micromagnetic numerical simulations

被引：1
|
作者：
Alvarez-Prado, L. M. [1 ,2 ]
Cid, R. [1 ,3 ,4 ]
Morales, R. [5 ,6 ]
Diaz, J. [1 ,2 ]
Velez, M. [1 ,2 ]
Rubio, H. [1 ,2 ]
Hierro-Rodriguez, A. [7 ,8 ]
Alameda, J. M. [1 ,2 ]
机构：
[1] Univ Oviedo, Dept Fis, Fac Ciencias, Avda Feder Garcia Lorca 18, E-33007 Oviedo, Spain
[2] Univ Oviedo Principado Asturias, CSIC, CINN, El Entrego 33940, Spain
[3] BM25 SpLine ESRF, Av Martyrs, F-4169007 Grenoble, France
[4] CSIC, Inst Ciencia Mat Madrid, Campus Cantoblanco, Madrid 28049, Spain
[5] Univ Pais Vasco UPV EHU, Dept Quim Fis & BCMat, Uph Leioa 48940, Spain
[6] Basque Fdn Sci, IKERBASKE, Bilbao 48011, Spain
[7] IFIMUP & IN, Inst Nanosci & Nanotechnol, Rua Campo Alegre, P-4169007 Porto, Portugal
[8] Univ Glasgow, Sch Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2018年 / 456卷
关键词：
MAGNETOCRYSTALLINE ANISOTROPY; PERPENDICULAR ANISOTROPY; STRIPE DOMAINS; INTERMETALLICS; HYSTERESIS; EVOLUTION; ENERGY;
D O I：
10.1016/j.jmmm.2018.01.086
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Amorphous Nd-Co thin films exhibit stripe shaped periodic magnetic domains with local out-of-plane magnetization components due to their perpendicular magnetic anisotropy. This anisotropy has been quantified in a fairly simple way by reproducing the experimental magnetization curves by means of micromagnetic numerical simulations. The simulations show that the first (K-1) and second (K-2) anisotropy constants must be used to properly describe the variation of the stripe domains with the in plane applied magnetic field. A strong temperature dependence of both K-1 and K-2 has been obtained between 10 K and room temperature. This anisotropy behavior is characteristic of two magnetically coupled 3d-4f sublattices with competing anisotropies. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：251 / 256
页数：6
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