Temperature dependence of the magnetization in Fe islands on W(110):: evidence for spin-wave quantization -: art. no. 47

被引：28
|
作者：
Senz, V
Röhlsberger, R
Bansmann, J
Leupold, O
Meiwes-Broer, KH
机构：
[1] Univ Rostock, Fachbereich Phys, D-18051 Rostock, Germany
[2] European Synchrotron Radiat Facil, F-38043 Grenoble, France
来源：
NEW JOURNAL OF PHYSICS | 2003年 / 5卷
关键词：
D O I：
10.1088/1367-2630/5/1/347
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have measured the temperature dependence of the magnetic hyperfine field in Ag-coated Fe(110) islands on W(110) between 4 and 300 K using nuclear resonant scattering of synchrotron radiation. The decay of the spontaneous magnetization of the islands with increasing temperature differs distinctly from the bulk characteristics and is not described by a simple Bloch's T-3/2 law. The deviation is attributed to quantization of spin-waves as a result of geometric confinement in the islands. The data can be explained assuming an effective energy gap in the spin-wave spectrum of DeltaE = 6.7 +/- 1 meV.
引用
收藏
页数：9
相关论文
共 50 条
  • [1] Spin-wave quantization in ferromagnetic nickel nanowires -: art. no. 027201
    Wang, ZK
    Kuok, MH
    Ng, SC
    Lockwood, DJ
    Cottam, MG
    Nielsch, K
    Wehrspohn, RB
    Gösele, U
    PHYSICAL REVIEW LETTERS, 2002, 89 (02)
  • [2] Spin-wave study of the magnetization reversal in bilayered stripes -: art. no. 063905
    Chérif, SM
    Roussigné, Y
    Moch, P
    Sergeeva, NA
    JOURNAL OF APPLIED PHYSICS, 2005, 98 (06)
  • [3] Ab initio electron theory for magnetism in Fe:: Pressure dependence of spin-wave energies, exchange parameters, and Curie temperature -: art. no. 012407
    Morán, S
    Ederer, C
    Fähnle, M
    PHYSICAL REVIEW B, 2003, 67 (01):
  • [4] Field dependence of magnetization reversal by spin transfer -: art. no. 174402
    Grollier, J
    Cros, V
    Jaffrès, H
    Hamzic, A
    George, JM
    Faini, G
    Ben Youssef, J
    Le Gall, H
    Fert, A
    PHYSICAL REVIEW B, 2003, 67 (17)
  • [5] Spin-wave excitations in finite rectangular elements of Ni80Fe20 -: art. no. 064427
    Bayer, C
    Jorzick, J
    Hillebrands, B
    Demokritov, SO
    Kouba, R
    Bozinoski, R
    Slavin, AN
    Guslienko, KY
    Berkov, DV
    Gorn, NL
    Kostylev, MP
    PHYSICAL REVIEW B, 2005, 72 (06)
  • [6] Ab initio magnetocrystalline anisotropy calculations for Fe/W(110) and Fe/Mo(110) -: art. no. 092402
    Qian, X
    Hübner, W
    PHYSICAL REVIEW B, 2001, 64 (09):
  • [7] Temperature and field dependence of the spin magnetization density in SmMn2Ge2 -: art. no. 024407
    Bebb, AM
    Taylor, JW
    Duffy, JA
    Banfield, ZF
    Cooper, MJ
    Lees, MR
    McCarthy, JE
    Timms, DN
    PHYSICAL REVIEW B, 2005, 71 (02):
  • [8] Spin-wave dispersion in La2CuO4 -: art. no. 132404
    Peres, NMR
    Araújo, MAN
    PHYSICAL REVIEW B, 2002, 65 (13): : 1 - 4
  • [9] DISCREPANCY BETWEEN SPIN-WAVE DISPERSION AND TEMPERATURE-DEPENDENCE OF MAGNETIZATION IN AMORPHOUS FERROMAGNETS
    MANO, H
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1982, 51 (10) : 3157 - 3165
  • [10] THE SPIN-WAVE EXCITATIONS AND THE TEMPERATURE-DEPENDENCE OF THE MAGNETIZATION IN IRON, COBALT, NICKEL AND THEIR ALLOYS
    HULLER, K
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1986, 61 (03) : 347 - 358
12345