Effect of the capping on the local Mn oxidation state in buried (001) and (110) SrTiO3/La2/3Ca1/3MnO3 interfaces

被引：4
作者：
Estrade, S. [1 ,2 ]
Rebled, J. M. [1 ,3 ]
Walls, M. G. [4 ]
de la Pena, F. [5 ]
Colliex, C. [4 ]
Cordoba, R. [6 ]
Infante, I. C. [3 ,7 ]
Herranz, G. [3 ]
Sanchez, F. [3 ]
Fontcuberta, J. [3 ]
Peiro, F. [1 ]
机构：
[1] Univ Barcelona, Dept Elect, LENS MIND IN2UB, E-08028 Barcelona, Spain
[2] CCiT UB, TEM MAT, Barcelona 08028, Spain
[3] Inst Ciencia Mat Barcelona CSIC, Bellaterra 08193, Spain
[4] Univ Paris 11, Lab Phys Solides, F-91405 Orsay, France
[5] MINATEC, LETI, CEA, F-38054 Grenoble, France
[6] Inst Univ Invest Nanociencia Aragon INA, Zaragoza 50018, Spain
[7] Ecole Cent Paris, CNRS, UMR8580, Lab Struct Proprietes & Modelisat Solides, F-92295 Chatenay Malabry, France
来源：
JOURNAL OF APPLIED PHYSICS | 2011年 / 110卷 / 10期
关键词：
ROOM-TEMPERATURE; MAGNETORESISTANCE;
D O I：
10.1063/1.3660786
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The electronic stability of (001) and (110) surfaces of La2/3Ca1/3MnO3 (LCMO) capped with nanometric SrTiO3 (STO) layers in epitaxial heterostructures is addressed by (S) TEM electron energy loss spectroscopy. It is found that growth of STO on (001) LCMO promotes a significant electron doping of LCMO that extends a few nanometers deep into the film. In contrast, (110) LCMO appears to be electronically more robust and no electronic reordering has been observed. These results are in clear correlation with the distinct magnetic properties observed in those interfaces and illustrate that complex chemical phenomena take place at interfaces among multivalent oxides. (C) 2011 American Institute of Physics. [doi:10.1063/1.3660786]
引用
收藏
页数：5
相关论文
共 30 条
  • [1] Some aspects of the phase diagram of double-exchange systems
    Arovas, DP
    Guinea, F
    [J]. PHYSICAL REVIEW B, 1998, 58 (14) : 9150 - 9155
  • [2] Nanoscale multiphase separation at La2/3Ca1/3MnO3/SrTiO3 interfaces -: art. no. 067210
    Bibes, M
    Balcells, L
    Valencia, S
    Fontcuberta, J
    Wojcik, M
    Jedryka, E
    Nadolski, S
    [J]. PHYSICAL REVIEW LETTERS, 2001, 87 (06) : 67210 - 1
  • [3] Using half-metallic manganite interfaces to reveal insights into spintronics
    Bowen, M.
    Maurice, J-L
    Barthelemy, A.
    Bibes, M.
    Imhoff, D.
    Bellini, V.
    Bertacco, R.
    Wortmann, D.
    Seneor, P.
    Jacquet, E.
    Vaures, A.
    Humbert, J.
    Contour, J-P
    Colliex, C.
    Bluegel, S.
    Dederichs, P. H.
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (31)
  • [4] Effects of Au nanoparticles on the magnetic and transport properties of La0.67Sr0.33MnO3 ultrathin layers
    Brivio, S.
    Magen, C.
    Sidorenko, A. A.
    Petti, D.
    Cantoni, M.
    Finazzi, M.
    Ciccacci, F.
    De Renzi, R.
    Varela, M.
    Picozzi, S.
    Bertacco, R.
    [J]. PHYSICAL REVIEW B, 2010, 81 (09)
  • [5] Colossal magnetoresistant materials: The key role of phase separation
    Dagotto, E
    Hotta, T
    Moreo, A
    [J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2001, 344 (1-3): : 1 - 153
  • [6] Cationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3
    Estrade, S.
    Arbiol, J.
    Peiro, F.
    Infante, I. C.
    Sanchez, F.
    Fontcuberta, J.
    de la Pena, F.
    Walls, M.
    Colliex, C.
    [J]. APPLIED PHYSICS LETTERS, 2008, 93 (11)
  • [7] Cationic diffusion in La2/3Ca1/3MnO3 thin films grown on LaAlO3 (001) substrates
    Estrade, S.
    Arbiol, J.
    Peiro, F.
    Abad, Ll.
    Laukhin, V.
    Balcells, Ll.
    Martinez, B.
    [J]. APPLIED PHYSICS LETTERS, 2007, 91 (25)
  • [8] Effects of thickness on the cation segregation in epitaxial (001) and (110) La2/3Ca1/3MnO3 thin films
    Estrade, S.
    Rebled, J. M.
    Arbiol, J.
    Peiro, F.
    Infante, I. C.
    Herranz, G.
    Sanchez, F.
    Fontcuberta, J.
    Cordoba, R.
    Mendis, B. G.
    Bleloch, A. L.
    [J]. APPLIED PHYSICS LETTERS, 2009, 95 (07)
  • [9] Local disorder effects on the pressure dependence of the metal-insulator transition in manganese perovskites
    Fontcuberta, J
    Laukhin, V
    Obradors, X
    [J]. APPLIED PHYSICS LETTERS, 1998, 72 (20) : 2607 - 2609
  • [10] Colossal ionic conductivity at interfaces of epitaxial ZrO2:Y2O3/SrTiO3 heterostructures
    Garcia-Barriocanal, J.
    Rivera-Calzada, A.
    Varela, M.
    Sefrioui, Z.
    Iborra, E.
    Leon, C.
    Pennycook, S. J.
    Santamaria, J.
    [J]. SCIENCE, 2008, 321 (5889) : 676 - 680
123