Growth, structure and magnetic properties of FePt nanostructures on NaCl(001) and MgO(001)

被引：9
作者：
Liscio, F. [1 ]
Makarov, D. [2 ]
Maret, M. [1 ]
Doisneau-Cottignies, B. [1 ]
Roussel, H. [3 ]
Albrecht, M. [2 ]
机构：
[1] UJF, CNRS, INP Grenoble, SIMaP, F-38402 St Martin Dheres, France
[2] Tech Univ Chemnitz, Inst Phys, D-09107 Chemnitz, Germany
[3] INP Grenoble, Consortium Moyens Technol Communs, F-38402 St Martin Dheres, France
来源：
NANOTECHNOLOGY | 2010年 / 21卷 / 06期
关键词：
THIN-FILMS; NANOPARTICLES; L1(0)-FEPT; UNDERLAYER; MORPHOLOGY; PARTICLES; BEHAVIOR; LAYER; VAN;
D O I：
10.1088/0957-4484/21/6/065602
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A comparison of the structural and magnetic properties of FePt nanostructures grown at different temperatures on NaCl(001) and MgO(001) substrates is presented. A strong influence of the deposition temperature on the epitaxial growth as well as on the size distribution of FePt nanostructures grown on NaCl substrates is observed. In spite of a large lattice mismatch between FePt and NaCl, a 'cube-over-cube' growth of nanostructures with a narrow size distribution was achieved at 520 K. Moreover, the growth of FePt nanostructures on NaCl(001) is not preceded by the formation of a wetting layer as observed on MgO(001). The higher degree of L1(0) chemical ordering in FePt nanostructures grown on MgO(001) accompanied by the absence of L1(0) variants with an in-plane tetragonal c-axis indicates that the tensile epitaxial stress induced by the MgO substrate is a key factor in the formation of the L1(0) phase with an out-of-plane c-axis. Superparamagnetic behavior is revealed for the FePt nanostructures grown on NaCl(001) due to their small size and relatively poor chemical order.
引用
收藏
页数：10
相关论文
共 41 条
  • [1] Thermodynamics and kinetics during pulsed laser annealing and patterning of FePt films
    Buschbeck, J.
    Faehler, S.
    Weisheit, M.
    Leistner, K.
    McCord, J.
    Rellinghaus, B.
    Schultz, L.
    [J]. JOURNAL OF APPLIED PHYSICS, 2006, 100 (12)
  • [2] SPIN-GLASS BEHAVIOR IN A FINE PARTICLE SYSTEM
    CHANTRELL, RW
    ELHILO, M
    OGRADY, K
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (04) : 3570 - 3578
  • [3] L10 FePt films epitaxially grown on MgO substrates with or without a Cr underlayer
    Ding, Y. F.
    Chen, J. S.
    Liu, E.
    Li, L.
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2006, 303 (02) : E238 - E242
  • [4] Monodisperse face-centred tetragonal FePt nanoparticles with giant coercivity
    Elkins, K
    Li, D
    Poudyal, N
    Nandwana, V
    Jin, ZQ
    Chen, KH
    Liu, JP
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2005, 38 (14) : 2306 - 2309
  • [5] Control of the axis of chemical ordering and magnetic anisotropy in epitaxial FePt films
    Farrow, RFC
    Weller, D
    Marks, RF
    Toney, MF
    Cebollada, A
    Harp, GR
    [J]. JOURNAL OF APPLIED PHYSICS, 1996, 79 (08) : 5967 - 5969
  • [6] Growth temperature dependence of long-range alloy order and magnetic properties of epitaxial FexPt1-x (x similar or equal to 0.5) films
    Farrow, RFC
    Weller, D
    Marks, RF
    Toney, MF
    Horn, S
    Harp, GR
    Cebollada, A
    [J]. APPLIED PHYSICS LETTERS, 1996, 69 (08) : 1166 - 1168
  • [7] Novel ultrasonic-assisted alignment of L10 FePt nanoparticles
    Foglia, S.
    Notargiacomo, A.
    Capobianchi, A.
    Testa, A. M.
    Fiorani, D.
    Arrizza, L.
    Veroli, C.
    [J]. SUPERLATTICES AND MICROSTRUCTURES, 2009, 46 (1-2) : 121 - 124
  • [8] Self-assembled FePt nanodot arrays with mono-dispersion and -orientation
    Gai, Z
    Howe, JY
    Guo, JD
    Blom, DA
    Plummer, EW
    Shen, J
    [J]. APPLIED PHYSICS LETTERS, 2005, 86 (02) : 023107 - 1
  • [9] Morphology of Pt islands grown on MgO(001)
    Gatel, C
    Baules, P
    Snoeck, E
    [J]. JOURNAL OF CRYSTAL GROWTH, 2003, 252 (1-3) : 424 - 432
  • [10] Nucleation and growth kinetics of Pd and CuPd particles on NaCl(100)
    Gimenez, F
    Chapon, C
    Henry, CR
    [J]. NEW JOURNAL OF CHEMISTRY, 1998, 22 (11) : 1289 - 1294
12345