Refined Sr2FeMoO6 interface realized with photoemission and magnetization analysis

被引：3
作者：
Angervo, I [1 ]
Saloaro, M. [1 ]
Granroth, S. [2 ]
Huhtinen, H. [1 ]
Paturi, P. [1 ]
机构：
[1] Univ Turku, Dept Phys & Astron, Wihuri Phys Lab, FI-20014 Turku, Finland
[2] Univ Turku, Dept Phys & Astron, Mat Res Lab, FI-20014 Turku, Finland
来源：
APPLIED SURFACE SCIENCE | 2020年 / 507卷
关键词：
Sr2FeMoO6; Thin film; Ex situ; X-ray photoelectron spectroscopy; RAY PHOTOELECTRON-SPECTROSCOPY; PULSED-LASER DEPOSITION; LEVEL BINDING-ENERGIES; THIN-FILMS; XPS SPECTRA; SURFACE; SRTIO3; SR; SEGREGATION; TEMPERATURE;
D O I：
10.1016/j.apsusc.2019.144435
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We investigate the effects of ex situ post-annealing on a set of identically deposited Sr2FeMoO6 (SFMO) thin films. The annealing provides a significant enhancement to ferrimagnetic exchange, evidenced by almost 40 K increase in Curie temperature. The electronic nature of the film surface is our focus of interest. The detailed analysis on oxygen 1s, strontium 3d, molybdenum 3d spectrum along with changes in the carbon contamination show purification from additional phases and significant valence fluctuation. Successful ex situ treatment provides films with higher Curie temperature and diminished surface contamination. Annealing therefore provides a possible method of reobtaining a portion of the valuable bulk attributes at interfaces in e.g. spin valve structures.
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页数：7
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共 47 条
  • [1] Interface defects induced vertical magnetic anisotropy in Sr2FeMoO6 thin films
    Angervo, I.
    Saloaro, M.
    Huhtinen, H.
    Paturi, P.
    [J]. APPLIED SURFACE SCIENCE, 2017, 422 : 682 - 689
  • [2] Improving the surface structure of high quality Sr2FeMoO6 thin films for multilayer structures
    Angervo, I.
    Saloaro, M.
    Tikkanen, J.
    Huhtinen, H.
    Paturi, P.
    [J]. APPLIED SURFACE SCIENCE, 2017, 396 : 754 - 759
  • [3] Thickness dependent properties of Sr2FeMoO6 thin films grown on SrTiO3 and (LaAlO3)0.3(Sr2ALTaO6)0.7 substrates
    Angervo, I.
    Saloaro, M.
    Palonen, H.
    Majumdar, S.
    Huhtinen, H.
    Paturi, P.
    [J]. 20TH INTERNATIONAL CONFERENCE ON MAGNETISM, ICM 2015, 2015, 75 : 1011 - 1021
  • [4] [Anonymous], [No title captured]
  • [5] Generalized molybdenum oxide surface chemical state XPS determination via informed amorphous sample model
    Baltrusaitis, Jonas
    Mendoza-Sanchez, Beatriz
    Fernandez, Vincent
    Veenstra, Rick
    Dukstiene, Nijole
    Roberts, Adam
    Fairley, Neal
    [J]. APPLIED SURFACE SCIENCE, 2015, 326 : 151 - 161
  • [6] Evidence for strontium segregation in La0.7Sr0.3MnO3 thin films grown by pulsed laser deposition:: consequences for tunnelling junctions
    Bertacco, R
    Contour, JP
    Barthélemy, A
    Olivier, J
    [J]. SURFACE SCIENCE, 2002, 511 (1-3) : 366 - 372
  • [7] SRTIO3(100) STEP SITES AS CATALYTIC CENTERS FOR H2O DISSOCIATION
    BROOKES, NB
    THORNTON, G
    QUINN, FM
    [J]. SOLID STATE COMMUNICATIONS, 1987, 64 (03) : 383 - 386
  • [8] The effect of the itinerant spin-polarized carriers on magnetization in double-perovskite ferrimagnet Sr2FeMoO6
    Cai, TY
    Li, ZY
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2004, 16 (21) : 3737 - 3744
  • [9] PHOTOELECTRON STUDY OF SRTIO3 - AN INSPECTION OF CORE-LEVEL BINDING-ENERGIES WITH THE USE OF A POINT-ION MODEL AND SELF-CONSISTENT ATOMIC-STRUCTURE CALCULATIONS
    COURTHS, R
    NOFFKE, J
    WERN, H
    HEISE, R
    [J]. PHYSICAL REVIEW B, 1990, 42 (14): : 9127 - 9142
  • [10] Chemical and structural characterization of La0.5Sr0.5MnO3 thin films prepared by pulsed-laser deposition
    Decorse, P
    Quenneville, E
    Poulin, S
    Meunier, M
    Yelon, A
    Morin, F
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2001, 19 (03): : 910 - 915
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