Noncollinear Magnetism in Ultrathin Films with Strong Spin-Orbit Coupling from Ab Initio

被引：3
作者：
Boettcher, D. [1 ,2 ]
Ernst, A. [1 ]
Henk, J. [1 ]
机构：
[1] Max Planck Inst Mikrostrukturphys, D-06120 Halle, Saale, Germany
[2] Univ Halle Wittenberg, Inst Phys, D-06120 Halle, Saale, Germany
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2012年 / 12卷 / 09期
关键词：
Dzyaloshinskii-Moryia Interaction; Ultrathin Films; Magnetic Ground State Properties; MAGNETOCRYSTALLINE ANISOTROPY;
D O I：
10.1166/jnn.2012.6555
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Fe and Pt are paradigms for ferromagnetism and strong spin-orbit coupling, respectively. Their combination in an ultrathin Fe film on a Pt(111) substrate is thus expected to modify the magnetic structures. We report on a theoretical investigation of a monolayer of Fe on Pt(111), using a generalized Heisenberg model that includes the complete spin interaction matrices I-ij computed from first principles. We find a noncollinear periodic configuration that is strongly determined by the Dzyaloshinskii-Moriya interaction. Taking into account a magnetic field to mimic recent experiments, this noncollinear structure solves the disagreement between the experimental magnetization and the average magnetization for a ferromagnetic system. The critical temperature decreases from 670 K to 590 K due to spin-orbit coupling.
引用
收藏
页码：7516 / 7519
页数：4
相关论文
共 18 条
  • [1] Binder K., 2012, MONTE CARLO METHODS
  • [2] Atomistic magnetization dynamics in nanostructures based on first principles calculations: application to Co nanoislands on Cu(111)
    Boettcher, D.
    Ernst, A.
    Henk, J.
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2011, 23 (29)
  • [3] 1ST-PRINCIPLES CALCULATION OF THE MAGNETOCRYSTALLINE ANISOTROPY ENERGY OF IRON, COBALT, AND NICKEL
    DAALDEROP, GHO
    KELLY, PJ
    SCHUURMANS, MFH
    [J]. PHYSICAL REVIEW B, 1990, 41 (17): : 11919 - 11937
  • [4] Anisotropic spin-orbit coupling and magnetocrystalline anisotropy in vicinal Co films
    Dhesi, SS
    van der Laan, G
    Dudzik, E
    Shick, AB
    [J]. PHYSICAL REVIEW LETTERS, 2001, 87 (06) : 67201 - 1
  • [5] Magnetic surface nanostructures
    Enders, A.
    Skomski, R.
    Honolka, J.
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2010, 22 (43)
  • [6] Complex magnetism of iron monolayers on hexagonal transition metal surfaces from first principles
    Hardrat, B.
    Al-Zubi, A.
    Ferriani, P.
    Bluegel, S.
    Bihlmayer, G.
    Heinze, S.
    [J]. PHYSICAL REVIEW B, 2009, 79 (09)
  • [7] Magnetic anisotropy of Fe and Co ultrathin films deposited on Rh(111) and Pt(111) substrates: An experimental and first-principles investigation
    Lehnert, Anne
    Dennler, Samuel
    Blonski, Piotr
    Rusponi, Stefano
    Etzkorn, Markus
    Moulas, Geraud
    Bencok, Peter
    Gambardella, Pietro
    Brune, Harald
    Hafner, Juergen
    [J]. PHYSICAL REVIEW B, 2010, 82 (09)
  • [8] LOCAL SPIN-DENSITY FUNCTIONAL-APPROACH TO THE THEORY OF EXCHANGE INTERACTIONS IN FERROMAGNETIC METALS AND ALLOYS
    LIECHTENSTEIN, AI
    KATSNELSON, MI
    ANTROPOV, VP
    GUBANOV, VA
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1987, 67 (01) : 65 - 74
  • [9] Effects of spin-orbit coupling on the spin structure of deposited transition-metal clusters
    Mankovsky, S.
    Bornemann, S.
    Minar, J.
    Polesya, S.
    Ebert, H.
    Staunton, J. B.
    Lichtenstein, A. I.
    [J]. PHYSICAL REVIEW B, 2009, 80 (01):
  • [10] EQUATION OF STATE CALCULATIONS BY FAST COMPUTING MACHINES
    METROPOLIS, N
    ROSENBLUTH, AW
    ROSENBLUTH, MN
    TELLER, AH
    TELLER, E
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1953, 21 (06) : 1087 - 1092
12