Large magnetoresistance in magnetic tunnel junctions using Co-Mn-Al full Heusler alloy

被引：71
|
作者：
Kubota, H [1 ]
Nakata, J [1 ]
Oogane, M [1 ]
Ando, Y [1 ]
Sakuma, A [1 ]
Miyazaki, T [1 ]
机构：
[1] Tohoku Univ, Dept Appl Phys, Grad Sch Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2004年 / 43卷 / 7B期
关键词：
Heusler alloy; tunnel magnetoresistance; magnetic random access memory; spin polarization;
D O I：
10.1143/JJAP.43.L984
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetic tunnel junctions with a stacking structure of Cr/Co-Mn-Al/Al-O/Co-Fe/Ir-Mn were fabricated using a UHV magnetron-sputtering machine. Co-Mn-Al films showed B2 structure, which involves partial disorder between Mn and Al sites. Tunnel magnetoresistance ratios at room temperature were 27% and 40% before and after annealing at 250degreesC, respectively. Those values are much higher than the ones obtained in previous experiments using half Heusler alloys.
引用
收藏
页码：L984 / L986
页数：3
相关论文
共 50 条
  • [41] Demonstration of reconfigurable magnetic tunnel diode and giant tunnel magnetoresistance in magnetic tunnel junctions made with spin gapless semiconductor and half-metallic Heusler alloy
    Maji, Nilay
    Nath, Tapan Kumar
    APPLIED PHYSICS LETTERS, 2022, 120 (07)
  • [42] Tunnel anisotropic magnetoresistance in magnetic tunnel junctions using FeAlSi
    Akamatsu, S.
    Nakano, T.
    Al-Mahdawi, Muftah
    Yupeng, W.
    Tsunoda, M.
    Ando, Y.
    Oogane, M.
    AIP ADVANCES, 2023, 13 (02)
  • [43] Co2MnSi as full Heusler alloy ferromagnetic electrode in magnetic tunneling junctions
    Reiss, G.
    Huetten, A.
    Kaemmerer, S.
    Schmalhorst, J.
    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 5, 2006, 3 (05): : 1322 - +
  • [44] SPIN TRANSFER TORQUE SWITCHING AND PERPENDICULAR MAGNETIC ANISOTROPY IN FULL HEUSLER ALLOY Co2FeAl-BASED TUNNEL JUNCTIONS
    Sukegawa, H.
    Wen, Z. C.
    Kasai, S.
    Inomata, K.
    Mitani, S.
    SPIN, 2014, 4 (04)
  • [45] Structural and magnetic properties and tunnel magnetoresistance for Co2(Cr,Fe)Al and Co2FeSi full-Heusler alloys
    Inomata, K
    Okamura, S
    Miyazaki, A
    Kikuchi, M
    Tezuka, N
    Wojcik, M
    Jedryka, E
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2006, 39 (05) : 816 - 823
  • [46] Huge tunneling magnetoresistance in magnetic tunnel junction with Heusler alloy Co2MnSi electrodes
    Hu, Yu-jie
    Huang, Jing
    Wang, Jia-ning
    Li, Qun-xiang
    CHINESE JOURNAL OF CHEMICAL PHYSICS, 2021, 34 (03) : 273 - 280
  • [47] Tunnel magnetoresistance effect in magnetic tunnel junctions using Fermi-level-tuned epitaxial Fe2Cr1-xCoxSi Heusler alloy
    Wang, Yu-Pu
    Han, Gu-Chang
    Lu, Hui
    Qiu, Jinjun
    Yap, Qi-Jia
    Teo, Kie-Leong
    JOURNAL OF APPLIED PHYSICS, 2014, 115 (17)
  • [48] Giant tunnel magnetoresistance at room temperature for junctions using full-heusler Co2FeAl0.5Si0.5 electrodes
    Tezuka, Nobuki
    Ikeda, Naomichi
    Sugimoto, Satoshi
    Inomata, Koichiro
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2007, 46 (17-19): : L454 - L456
  • [49] Magnetic tunnel junctions with an equiatomic quaternary CoFeMnSi Heusler alloy electrode
    Bainsla, Lakhan
    Suzuki, Kazuya Z.
    Tsujikawa, Masahito
    Tsuchiura, Hiroki
    Shirai, Masafumi
    Mizukami, Shigemi
    APPLIED PHYSICS LETTERS, 2018, 112 (05)
  • [50] Large tunnel magnetoresistance at room temperature with a Co2FeAl full-Heusler alloy electrode -: art. no. 232503
    Okamura, S
    Miyazaki, A
    Sugimoto, S
    Tezuka, N
    Inomata, K
    APPLIED PHYSICS LETTERS, 2005, 86 (23) : 1 - 3
12345