Low temperature effect on magnetic conversion and giant magnetoresistance in electrodeposited CoCu/Cu multilayers

被引：0
|
作者：
机构：
[1] Ghosh, S.K.
[2] Dogra, Anjana
[3] Chowdhury, P.
[4] Rajak, S.
[5] Srivastava, C.
来源：
Ghosh, S.K. (sghosh@barc.gov.in) | 1600年 / Elsevier Ltd卷 / 647期
关键词：
Abstract In the present study; the variation of superparamagnetic (SPM) and ferromagnetic (FM) components and their effect on giant magnetoresistance (GMR) in electrodeposited CoCu/Cu multilayers (ML's) were investigated in the temperature range 30-300 K. For this; two different kinds of ML's; one with discontinuous Co-layer consisting of large superparamagnetic (SPM) (tCo = 0.2 and 0.3 nm) fractions and the other with continuous Co-layer containing large ferromagnetic (FM) (tCo = 2 and 3 nm) content were considered. Magnetoresistance measurements showed increase in MR magnitude with decrease in temperature associated with magnetic conversions in the magnetic Co-layers. At 300 K; a substantial difference in magnitude of MR was found for multilayers with tCo = 0.3 (5.07%) and 3 nm (8.82%). However; at 30 K very close values of MR for multilayer pair with tCo = 0.3 (16.48%) and 3 nm (17.72%) ensures a significant transformations of SPM to FM fractions in Co-layer at tCo = 0.3 nm. Similar results were obtained for the other pair of ML's i.e. tCo = 0.2 and 2 nm. This study suggests a suitable minimization of SPM content in the Co-layer could be another effective mechanism in maximizing the MR value. The measured temperature dependence of MR obeyed a simple T1 law. © 2015 Elsevier B.V;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
引用
收藏
相关论文
共 50 条
  • [21] Giant Magnetoresistance and Super-Paramagnetism in Electrodeposited NiFe/Cu Multilayers
    Esmaili, Sitra
    Bahrololoom, M. E.
    Zamani, C.
    SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY, 2011, 47 (04) : 323 - 327
  • [22] Giant magnetoresistance in soft magnetic NiFeCo/Cu multilayers
    Jimbo, Mutsuko
    Tsunashima, Shigeru
    Kanda, Tatsuya
    Goto, Shoji
    Uchiyama, Susumu
    1600, American Inst of Physics, Woodbury, NY, USA (74):
  • [23] Giant magnetoresistance in self-supporting electrodeposited Ni-Cu/Cu multilayers
    Bakonyi, I
    TothKadar, E
    Becsei, T
    Toth, J
    Tarnoczi, T
    Cziraki, A
    Gerocs, I
    Nabiyouni, G
    Schwarzacher, W
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1996, 156 (1-3) : 347 - 349
  • [24] Influence of superparamagnetic regions on the giant magnetoresistance of electrodeposited Co-Cu/Cu multilayers
    Peter, L.
    Weihnacht, V.
    Toth, J.
    Padar, J.
    Pogany, L.
    Schneider, C. M.
    Bakonyi, I.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 312 (02) : 258 - 265
  • [25] The Effect of Fe Content in Electrodeposited CoFe/Cu Multilayers on Structural, Magnetic and Magnetoresistance Characterizations
    Tekgul, Atakan
    Alper, Mursel
    Kockar, Hakan
    Safak, Murside
    Karaagac, Oznur
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2010, 10 (11) : 7783 - 7786
  • [26] Correlation between structural imperfection and giant magnetoresistance in electrodeposited Co/Cu multilayers
    Shima, M
    Salamanca-Riba, LG
    McMichael, RD
    Moffat, TP
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (08) : C518 - C523
  • [27] Preparation, Structure and Giant Magnetoresistance of Electrodeposited Fe-Co/Cu Multilayers
    Toth, B. G.
    Peter, L.
    Pogany, L.
    Revesz, A.
    Bakonyi, I.
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2014, 161 (04) : D154 - D162
  • [28] SUBSTRATE-TEMPERATURE EFFECT ON GIANT MAGNETORESISTANCE OF SPUTTERED CO/CU MULTILAYERS
    KANO, H
    KAGAWA, K
    SUZUKI, A
    OKABE, A
    HAYASHI, K
    ASO, K
    APPLIED PHYSICS LETTERS, 1993, 63 (20) : 2839 - 2841
  • [29] Electrochemical, Structural and Magnetic Analysis of Electrodeposited CoCu/Cu Multilayers: Influence of Cu Layer Deposition Potential
    Tekgul, Atakan
    Kockar, Hakan
    Kuru, Hilal
    Alper, Mursel
    Unlu, C. Gokhan
    JOURNAL OF ELECTRONIC MATERIALS, 2018, 47 (03) : 1896 - 1903
  • [30] Electrochemical, Structural and Magnetic Analysis of Electrodeposited CoCu/Cu Multilayers: Influence of Cu Layer Deposition Potential
    Atakan Tekgül
    Hakan Kockar
    Hilal Kuru
    Mürsel Alper
    C. Gökhan ÜnlÜ
    Journal of Electronic Materials, 2018, 47 : 1896 - 1903
12345