Morphology and magnetoresistance of Co2Cr0.6Fe0.4Al-based tunnelling junctions
Morphology and magnetoresistance of Co2Cr0.6Fe0.4Al-based tunnelling junctions
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Co2Cr0 6Fe0 4Al基隧道结的形貌和磁阻
DOI:
10.1088/0022-3727/42/8/084006
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
M. Jourdan
中科院分区:
文献类型:
--
作者:
C. Herbort;E. Arbelo;M. Jourdan
Some ferromagnetic Heusler compounds are theoretically predicted to be half metallic materials, ie to be characterized by a huge spin polarization at the Fermi energy. We investigate the correlations between junction preparation conditions, morphology and transport properties of planar MgO/Co 2 Cr 0.6 Fe 0.4 Al/AlO x/Co/CoO x/Pt tunnelling junctions. Epitaxial Co 2 Cr 0.6 Fe 0.4 Al thin films were deposited by dc and rf magnetron sputtering on different buffer layers (Cr, Fe, MgO) on MgO (1 0 0) substrates. By RHEED, LEED and in situ STM investigations different surface morphologies were observed. Atomically flat surfaces with Co 2 Cr 0.6 Fe 0.4 Al unit cell sized steps (B2 structure) were obtained by rf sputtering on MgO substrates with e-beam evaporated MgO buffer layers. However, this morphology results in AlO x tunnelling barriers with improper wetting properties.
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DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
A. Conca;M. Jourdan;H. Adrian
通讯作者:
H. Adrian
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
M. Jourdan;A. Conca;C. Herbort;M. Kallmayer;H. Elmers;H. Adrian
通讯作者:
H. Adrian
影响因子:
4
作者:
V. Ksenofontov;C. Herbort;M. Jourdan;C. Felser
通讯作者:
C. Felser
影响因子:
3.7
作者:
Miura, Y;Nagao, K;Shirai, M
通讯作者:
Shirai, M