The mechanism of interlayer exchange coupling in silicon/iron layered structures

被引：1
作者：
Tugushev, V [1 ]
Kulatov, E
Navarro, O
机构：
[1] RRC Kurchatov Inst, Moscow 123182, Russia
[2] Russian Acad Sci, Inst Gen Phys, Moscow 117942, Russia
[3] Natl Autonomous Univ Mexico, Inst Invest Mat, Mexico City 04510, DF, Mexico
来源：
MICROELECTRONICS JOURNAL | 2005年 / 36卷 / 3-6期
关键词：
intertayer exchange coupling; a-Si/Fe structures; indirect tunneling;
D O I：
10.1016/j.mejo.2005.02.061
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We propose a new mechanism of interlayer exchange coupling in a-Si/Fe structures, based on the indirect tunneling of spin-polarized electrons across the semiconductors spacer. This tunneling is effectuated by virtual hopping process over a narrow band, laying close to the Fermi level and leading to the sharp peak in the density of electron states. We take into account the iron-silicide formation inside the spacer and estimate the parameters of an effective exchange. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：488 / 490
页数：3
相关论文
共 10 条
  • [1] INTRINSIC AND HEAT-INDUCED EXCHANGE COUPLING THROUGH AMORPHOUS-SILICON
    BRINER, B
    LANDOLT, M
    [J]. PHYSICAL REVIEW LETTERS, 1994, 73 (02) : 340 - 343
  • [2] THEORY OF INTERLAYER MAGNETIC COUPLING
    BRUNO, P
    [J]. PHYSICAL REVIEW B, 1995, 52 (01) : 411 - 439
  • [3] Bürgler DE, 2003, J PHYS-CONDENS MAT, V15, pS443, DOI 10.1088/0953-8984/15/5/301
  • [4] Exponential dependence of the interlayer exchange coupling on the spacer thickness in MBE-grown Fe/SiFe/Fe sandwiches
    deVries, JJ
    Kohlhepp, J
    denBroeder, FJA
    Coehoorn, R
    Jungblut, R
    Reinders, A
    deJonge, WJM
    [J]. PHYSICAL REVIEW LETTERS, 1997, 78 (15) : 3023 - 3026
  • [5] Temperature-dependent biquadratic coupling in antiferromagnetically coupled Fe/FeSi multilayers
    Fullerton, EE
    Bader, SD
    [J]. PHYSICAL REVIEW B, 1996, 53 (09): : 5112 - 5115
  • [6] LIFSHITZ IM, 1982, INTRO THEORY DISORDE
  • [7] PATRIN SG, 2001, SOLID STATE PHYS, V43, P1643
  • [8] Interlayer exchange coupling
    Stiles, MD
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 200 (1-3) : 322 - 337
  • [9] Formation of nonmagnetic c-Fe1-xSi in antiferromagnetically coupled epitaxial Fe/Si/Fe
    Strijkers, GJ
    Kohlhepp, JT
    Swagten, HJM
    de Jonge, WJM
    [J]. PHYSICAL REVIEW B, 1999, 60 (13): : 9583 - 9587
  • [10] Origin of biquadratic exchange in Fe/Si/Fe
    Strijkers, GJ
    Kohlhepp, JT
    Swagten, HJM
    de Jonge, WJM
    [J]. PHYSICAL REVIEW LETTERS, 2000, 84 (08) : 1812 - 1815
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