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  • 2000-2004
  • 1995-1999  (2)
  • 1996  (2)
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  • 2000-2004
  • 1995-1999  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Preparation and microstructures of CoAg granular films with giant magnetoresistance (1996)
    Springer
    Applied physics 63 (1996), S. 167-170 
    Details
    ISSN: 1432-0630
    Keywords: 75.60.Jp ; 81.35.+k ; 68.55.Bg
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A series of Co x Ag1−x (0 ≤x 〈 100 at.%) granular films were deposited onto glass substrates with the thickness on the order of 400 nm using the ion-beam cosputtering technique at different substrate temperatures. Systematical investigations were made on the Giant MagnetoResistance (GMR) effect and microstructures in these thin granular films. The magnetoresistance ratio strongly depends on cobalt concentration, substrate temperature, and the optimal value of GMR was observed in Co22Ag78 sample prepared at a temperature of 300 K. Microstructures of these films are closely related to the fabricating process, and thus influence the GMR.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01567645
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Dependence of giant magnetoresistance on microstructures in ion-beam co-sputtered CoxAg1−x granular films (1996)
    Springer
    Journal of materials science 31 (1996), S. 5385-5389 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A number of structural analysis methods were employed to investigate the microstructures of ion-beam co-sputtering of Co x Ag1−x (0⩽x⩽100 at%) granular films. Forx=22 at%, the sample which has the optimal giant magnetoresistance at room temperature, there exists either crystallized or highly disordered regions shown by high-resolution electron microscopy. At the boundary between cobalt granules and the silver matrix, lattice mismatch was formed, leading to roughness of the interfaces. X-ray diffraction and transmission electron microscopy revealed that the samples had f c c structure at lowx, with (111) texture, and the h c p structure gradually appeared as x〉75 at %. Relative lattice expansion was observed asx increased.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01159307
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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