Material Study of Co2CrAl Heusler Alloy Magnetic Thin Film and Co2CrAl/n-Si Schottky Junction Device

被引：0
|
作者：
Rashmi Singh
Faizan Ahmad
Kashif Nazeer
Rachana Kumar
Naresh Kumar
Animesh K. Ojha
Sunil Singh Kushvaha
Pramod Kumar
机构：
[1] Indian Institute of Information Technology Allahabad,Department of Physics
[2] CSIR-National Physical Laboratory,undefined
[3] Motilal Nehru National Institute of Technology Allahabad,undefined
来源：
Journal of Electronic Materials | 2020年 / 49卷
关键词：
Co; CrAl Heusler alloy; magnetic thin films; spintronics; spin injection device; tunnelling; Schottky junction;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The structural, optical, magnetic, and electrical properties of Co2CrAl Heusler alloy magnetic thin films grown on n-type silicon (100) substrate (n-Si) and glass substrate were studied. The films were deposited using DC magnetron sputtering. X-ray diffraction (XRD) analysis confirmed the polycrystalline nature of the films. The effect of grain size on transmittance was investigated. Magnetic measurements revealed the presence of magnetic ordering in the films. Partial densities of states (PDOS) of the Co2CrAl were calculated by density functional theory (DFT) methods using the Vienna Ab initio Simulation Package (VASP). Co2CrAl thin film deposited over a silicon substrate was investigated for I–V characteristics. The electrical behaviour confirmed the existence of a Co2CrAl/n-Si Schottky contact, which suggests a spin injection phenomenon from Co2CrAl to n-Si by tunnelling through the lowered Schottky barrier.
引用
收藏
页码：3652 / 3658
页数：6
相关论文
共 50 条
  • [41] Interface and bulk magnetism of Co2Cr0.6Fe0.4Al and Co2CrAl thin films
    Jourdan, Martin
    Jorge, Elena Arbelo
    Herbort, Christian
    Kallmayer, Michael
    Klaer, Peter
    Elmers, Hans-Joachim
    [J]. APPLIED PHYSICS LETTERS, 2009, 95 (17)
  • [42] Peculiarities of the electronic transport in Co2CrAl and Co2CrGa half-metallic ferromagnets
    Kourov, N. I.
    Marchenkov, V. V.
    Korolev, A. V.
    Belozerova, K. A.
    Weber, H. W.
    [J]. CURRENT APPLIED PHYSICS, 2015, 15 (07) : 839 - 843
  • [43] Defect-induced ferrimagnetism in the half-metallic Co2CrAl and Co2CrSi compounds
    Ozdogan, Kemal
    Galanakis, Iosif
    Sasioglu, Ersoy
    Aktas, Bekir
    [J]. PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2007, 1 (03): : 95 - 97
  • [44] Effect of annealing on spinodally decomposed Co2CrAl grown via floating zone technique
    Omar, Ahmad
    Blum, Christian G. F.
    Loeser, Wolfgang
    Buechner, Bernd
    Wurmehl, Sabine
    [J]. JOURNAL OF CRYSTAL GROWTH, 2014, 401 : 617 - 621
  • [45] Specific features of the electrical resistance of half-metallic ferromagnetic alloys Co2CrAl and Co2CrGa
    N. I. Kourov
    A. V. Lukoyanov
    V. V. Marchenkov
    [J]. Physics of the Solid State, 2013, 55 : 2487 - 2490
  • [46] Specific Features of the Electrical Resistance of Half-Metallic Ferromagnetic Alloys Co2CrAl and Co2CrGa
    Kourov, N. I.
    Lukoyanov, A. V.
    Marchenkov, V. V.
    [J]. PHYSICS OF THE SOLID STATE, 2013, 55 (12) : 2487 - 2490
  • [47] Robust half-metallic spin-gap in Co2CrAl: doping and strain engineering
    Islam, A.
    Zulfiqar, M.
    Nazir, S.
    Ni, Jun
    [J]. PHYSICA SCRIPTA, 2022, 97 (03)
  • [48] Study Of Quaternary Heusler Alloy Co2CrAl1-xSi x
    Seema, K.
    Kumar, Ranjan
    [J]. SOLID STATE PHYSICS, VOL 57, 2013, 1512 : 1154 - 1155
  • [49] Structural disorder and short-range order in full Heusler alloys Fe2VAl and Co2CrAl from first principles calculations
    Kostenko, M. G.
    Lukoyanov, A. V.
    [J]. MATERIALS CHEMISTRY AND PHYSICS, 2020, 239
  • [50] Effect of Co substitution on magnetic properties and electronic structure of a Heusler alloy Fe2CrAl
    Yadav, Kavita
    Mukherjee, K.
    [J]. DAE SOLID STATE PHYSICS SYMPOSIUM 2019, 2020, 2265
12345