Transport properties of La2/3Sr1/3MnO3/LaAlO3/Pt tunnel junctions

被引：2
|
作者：
Galceran, R. [1 ]
Balcells, Ll. [1 ]
Pomar, A. [1 ]
Konstantinovic, Z. [1 ]
Sandiumenge, F. [1 ]
Martinez, B. [1 ]
机构：
[1] CSIC, Inst Ciencia Mat Barcelona, Bellaterra 08193, Spain
来源：
JOURNAL OF APPLIED PHYSICS | 2015年 / 117卷 / 10期
关键词：
MOLECULAR-BEAM EPITAXY; TRILAYER JUNCTIONS; COLOSSAL MAGNETORESISTANCE; SPIN POLARIZATION; TEMPERATURE; INTERFACES; BARRIERS; OXIDES; FILM; CONDUCTANCE;
D O I：
10.1063/1.4914412
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetotransport properties of La2/3Sr1/3MnO3/LaAlO3/Pt tunnel junctions have been thoroughly analyzed, as a function of temperature and magnetic field, to test the suitability of LaAlO3 for insulating barriers and spin injection processes. The insulating behavior of LaAlO3 maintained down to 1-2 nm (corresponding to 4-5 unit cells) renders this material useful as tunnel barrier. The temperature dependence of the junction resistance, R(T), down to 200K confirms direct tunneling as the dominant conduction channel. The barrier parameters of the junctions, phi(0) and s, are estimated using Simmons' model in the intermediate voltage range. The energy of the barrier was estimated to be phi(0) similar to 0.4 eV at room temperature. The dependence of R(T) and phi(0) on the magnetic field shows an anisotropic tunneling magnetoresistance of similar to 4% at low T when changing the direction of the magnetization with respect to the current flow. (C) 2015 AIP Publishing LLC.
引用
收藏
页数：6
相关论文
共 50 条
  • [31] Study of defects in an electroresistive Au/La2/3Sr1/3MnO3/SrTiO3(001) heterostructure by positron annihilation
    Ferragut, R.
    Dupaquier, A.
    Brivio, S.
    Bertacco, R.
    Egger, W.
    JOURNAL OF APPLIED PHYSICS, 2011, 110 (05)
  • [32] Structural and Magnetic Properties of La2/3Sr1/3MnO3/SrTiO3/CoFe2 Hard-Soft Magnetic Systems
    Moubah, R.
    Colis, S.
    Versini, G.
    Barre, S.
    Ulhaq-Bouillet, C.
    Dinia, A.
    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2017, 30 (05) : 1171 - 1175
  • [33] Unexpected precipitates in conjunction with layer-by-layer growth in Mn-enriched La2/3Sr1/3MnO3 thin films
    Steffen, Alexandra
    Glavic, Artur
    Gutberlet, Thomas
    Ambaye, Haile
    Schubert, Juergen
    Gepraegs, Stephan
    Barthel, Juri
    Mattauch, Stefan
    Zander, Willi
    Kruth, Maximilian
    Schoeffmann, Patrick
    Puetter, Sabine
    Brueckel, Thomas
    THIN SOLID FILMS, 2021, 735
  • [34] Spin transport and dynamics in all-oxide perovskite La2/3Sr1/3MnO3/SrRuO3 bilayers probed by ferromagnetic resonance
    Emori, Satoru
    Alaan, Urusa S.
    Gray, Matthew T.
    Sluka, Volker
    Chen, Yizhang
    Kent, Andrew D.
    Suzuki, Y.
    PHYSICAL REVIEW B, 2016, 94 (22)
  • [35] Integration of epitaxial La2/3Sr1/3MnO3 thin films on silicon-on-sapphire substrate for MEMS applications
    Chaluvadi, Sandeep Kumar
    Wang, Zhe
    de Araujo, Laryssa M. Carvalho
    Orgiani, Pasquale
    Polewczyk, Vincent
    Vinai, Giovanni
    Rousseau, Olivier
    Pierron, Victor
    Pautrat, Alain
    Domenges, Bernadette
    Schlom, Darrell G.
    Mechin, Laurence
    APPLIED SURFACE SCIENCE, 2022, 579
  • [36] Direct observation of oxygen vacancy-driven structural and resistive phase transitions in La2/3Sr1/3MnO3
    Yao, Lide
    Inkinen, Sampo
    van Dijken, Sebastiaan
    NATURE COMMUNICATIONS, 2017, 8
  • [37] Tunneling magnetoresistance and light modulation in Fe4N(La2/3Sr1/3MnO3)/C60/Fe4N single molecule magnetic tunnel junctions
    Han, Xuefei
    Mi, Wenbo
    Wang, Dunhui
    JOURNAL OF MATERIALS CHEMISTRY C, 2020, 8 (09) : 3137 - 3146
  • [38] Preferential occupation of interface bands in La2/3Sr1/3MnO3 films as seen via angle-resolved photoemission
    Tebano, A.
    Orsini, A.
    Medaglia, P. G.
    Di Castro, D.
    Balestrino, G.
    Freelon, B.
    Bostwick, A.
    Chang, Young Jun
    Gaines, G.
    Rotenberg, E.
    Saini, N. L.
    PHYSICAL REVIEW B, 2010, 82 (21)
  • [39] Magnetotransport properties of La2/3Ca1/3MnO3/YBa2Cu4O8/La2/3Ca1/3MnO3 sandwiches
    Zhao, K
    Feng, JF
    Huang, YH
    Wong, HK
    CHINESE PHYSICS, 2005, 14 (02): : 398 - 403
  • [40] Spin wave and percolation studies in epitaxial La2/3Sr1/3MnO3 thin films grown by pulsed laser deposition
    Ettayfi, A.
    Moubah, R.
    Hlil, E. K.
    Colis, S.
    Lenertz, M.
    Dinia, A.
    Lassri, H.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2016, 409 : 34 - 38
12345