Scaling approach to the magnetic phase diagram of nanosized systems

被引:103
作者
Castro, JDE
Altbir, D
Retamal, JC
Vargas, P
机构
[1] Univ Fed Rio de Janeiro, Inst Fis, BR-21945970 Rio De Janeiro, Brazil
[2] Univ Santiago Chile, Dept Fis, Santiago 22, Chile
[3] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile
关键词
D O I
10.1103/PhysRevLett.88.237202
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Based on the discovery of a simple scaling relation, a new technique for the investigation of the phase diagram of nanosized magnetic systems is proposed. By scaling the exchange interaction between magnetic moments, the magnetic phase diagram of currently lithographically produced particles can be obtained from those corresponding to much smaller systems. Such a technique reduces the computation time by several orders of magnitude, and provides a new approach to the investigation of the relative stability of distinct internal magnetic configurations of nanosized systems. The technique is illustrated by the determination of the phase diagram of cylindrically shaped Co particles.
引用
收藏
页码:2372021 / 2372024
页数:4
相关论文
共 13 条
  • [1] Magnetic properties and interactions of single-domain nanomagnets in a periodic array
    Abraham, MC
    Schmidt, H
    Savas, TA
    Smith, HI
    Ross, CA
    Ram, RJ
    [J]. JOURNAL OF APPLIED PHYSICS, 2001, 89 (10) : 5667 - 5670
  • [2] Direct observation of magnetization reversal processes in micron-sized elements of spin-valve material
    Chapman, JN
    Aitchison, PR
    Kirk, KJ
    McVitie, S
    Kools, JCS
    Gillies, MF
    [J]. JOURNAL OF APPLIED PHYSICS, 1998, 83 (10) : 5321 - 5325
  • [3] Patterned magnetic nanostructures and quantized magnetic disks
    Chou, SY
    [J]. PROCEEDINGS OF THE IEEE, 1997, 85 (04) : 652 - 671
  • [4] Single-domain circular nanomagnets
    Cowburn, RP
    Koltsov, DK
    Adeyeye, AO
    Welland, ME
    Tricker, DM
    [J]. PHYSICAL REVIEW LETTERS, 1999, 83 (05) : 1042 - 1045
  • [5] Magnetic anisotropies in dot arrays: Shape anisotropy versus coupling
    Grimsditch, M
    Jaccard, Y
    Schuller, IK
    [J]. PHYSICAL REVIEW B, 1998, 58 (17): : 11539 - 11543
  • [6] Reorientational magnetic transition in high-density arrays of single-domain dots
    Guslienko, KY
    Choe, SB
    Shin, SC
    [J]. APPLIED PHYSICS LETTERS, 2000, 76 (24) : 3609 - 3611
  • [7] Magnetic force microscopy study of interactions in 100 nm period nanomagnet arrays
    Hwang, M
    Abraham, MC
    Savas, TA
    Smith, HI
    Ram, RJ
    Ross, CA
    [J]. JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) : 5108 - 5110
  • [8] KITTEL C, 1986, INTRO SOLID STATE PH, P566
  • [9] Size and thickness dependencies of magnetization reversal in Co dot arrays
    Lebib, A
    Li, SP
    Natali, M
    Chen, Y
    [J]. JOURNAL OF APPLIED PHYSICS, 2001, 89 (07) : 3892 - 3896
  • [10] Device physics - Magnetoelectronics
    Prinz, GA
    [J]. SCIENCE, 1998, 282 (5394) : 1660 - 1663