Asymmetric magnetization reversal in dipolarly coupled spin valve structures with perpendicular magnetic anisotropy

被引：17
|
作者：
Gottwald, M. [1 ]
Hehn, M. [1 ]
Lacour, D. [1 ]
Hauet, T. [1 ]
Montaigne, F. [1 ]
Mangin, S. [1 ]
Fischer, P. [2 ]
Im, M. -Y. [2 ]
Berger, A. [3 ]
机构：
[1] Nancy Univ, CNRS, UMR 7198, Inst Jean Lamour, F-54506 Vandoeuvre Les Nancy, France
[2] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA
[3] CIC nanoGUNE Consolider, E-20018 Donostia San Sebastian, Spain
来源：
PHYSICAL REVIEW B | 2012年 / 85卷 / 06期
关键词：
FILMS; HYSTERESIS;
D O I：
10.1103/PhysRevB.85.064403
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnetization reversal has been studied in a Co74Tb26/Cu/Co88Tb12 system, which is a perpendicularly magnetized ferrimagnetic bilayer separated by a nonmagnetic layer. The Co88Tb12 (soft) layer (SL) exhibits a switching field much lower than the Co74Tb26 (hard) layer (HL), which enabled us to study the magnetization reversal of the SL for different magnetic states of the HL. We found an asymmetric hysteresis loop for the SL, when the HL is not fully saturated. Using careful analysis of magnetic force microscopy measurements we conclude that the asymmetry originates from magnetic domains formed in the HL that affect the SL reversal. A simple model based on magnetic dipolar interaction between the two layers is found to be in good agreement with the experimental data.
引用
收藏
页数：6
相关论文
共 50 条
  • [1] Magnetic states and magnetization reversal in magnetostatically coupled multilayers with low perpendicular anisotropy
    Tekielak, M.
    Dabrowski, M.
    Kisielewski, M.
    Maziewski, A.
    Zablotskii, V.
    [J]. JOURNAL OF APPLIED PHYSICS, 2010, 107 (08)
  • [2] Effect of random anisotropy on magnetization reversal in dipolarly coupled layered thin films
    Chowdhury, N.
    Bedanta, S.
    Babu, G. S.
    Weber, A.
    Mattauch, S.
    Rath, Ashutosh
    Dalai, M. K.
    Brueckel, Thomas
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2020, 503
  • [3] Magnetization reversal and magnetic interactions in patterned spin valve structures
    Bruessing, Frank
    Nowak, Gregor
    Schumann, Alexandra
    Buschhorn, Stefan
    Zabel, Hartmut
    Theis-Broehl, Katharina
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2009, 42 (16)
  • [4] Microscopic origin of asymmetric magnetization reversal of Co/Pt multilayers with perpendicular magnetic anisotropy
    Duy-Truong Quach
    Tien-Dung Chu
    Tuan-Son Nguyen
    Thi-Thuy-Phuong Doan
    Xuan-Tuyen Nguyen
    Lee, Kyung-Min
    Jeong, Jong-Ryul
    Kim, Namdong
    Shin, Hyun-Joon
    Kim, Dong-Hyun
    [J]. CURRENT APPLIED PHYSICS, 2020, 20 (09) : 1026 - 1030
  • [5] Magnetic reversal phenomena in pseudo-spin-valve films with perpendicular anisotropy
    Ilievski, Filip
    Perkinson, Joy C.
    Ross, Caroline A.
    [J]. JOURNAL OF APPLIED PHYSICS, 2007, 101 (09)
  • [6] Magnetization reversal in nanoscale magnetic films with perpendicular anisotropy
    Kirby, Roger D.
    Shen, J.X.
    Hardy, R.J.
    Sellmyer, D.J.
    [J]. Physical Review Letters, 1994, 72 (17)
  • [7] Magnetization reversal and anisotropy in exchange coupled structures
    Prados, C
    Pina, E
    Hernando, A
    González, JM
    [J]. MAGNETIC STORAGE SYSTEMS BEYOND 2000, 2001, 41 : 385 - 390
  • [8] MAGNETIZATION REVERSAL IN NANOSCALE MAGNETIC-FILMS WITH PERPENDICULAR ANISOTROPY
    KIRBY, RD
    SHEN, JX
    HARDY, RJ
    SELLMYER, DJ
    [J]. PHYSICAL REVIEW B, 1994, 49 (15): : 10810 - 10813
  • [9] MAGNETIZATION REVERSAL IN THIN MAGNETIC-FILMS WITH PERPENDICULAR ANISOTROPY
    MANSURIPUR, M
    [J]. JOURNAL OF APPLIED PHYSICS, 1982, 53 (03) : 1660 - 1663
  • [10] Spin-Torque-Triggered Magnetization Reversal in Magnetic Tunnel Junctions with Perpendicular Shape Anisotropy
    Cacoilo, N.
    Lequeux, S.
    Teixeira, B. M. S.
    Dieny, B.
    Sousa, R. C.
    Sobolev, N. A.
    Fruchart, O.
    Prejbeanu, I. L.
    Buda-Prejbeanu, L. D.
    [J]. PHYSICAL REVIEW APPLIED, 2021, 16 (02):
12345