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  • 76.80.+y  (2)
  • 1
    Electronic Resource
    Electronic Resource
    57Fe Mössbauer study of YBa4Cu2.95Fe0.05O8.5+y (1991)
    Springer
    Applied physics 53 (1991), S. 426-429 
    Details
    ISSN: 1432-0630
    Keywords: 74.70.Vy ; 76.80.+y
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract 57Fe Mössbauer measurements were performed on the Fe-doped YBa4Cu3O8.5+y compound as a function of annealing temperature in vacuum. Mössbauer spectra were analyzed using three different quadrupole split doublets. The resistance measurements showed that the compound is not superconducting. The possible identification of the Cu sites with their nearest neighbor oxygen sites in this compound is suggested. Comparison of the results with data of the presence of the superconductor YBa2Cu3O7 allows us to suppose that the presence of the Cu-chain sites alone does not result in superconductivity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00348157
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Radio-frequency annealing effects in amorphous Fe40Ni40B20 (1980)
    Springer
    Applied physics 23 (1980), S. 1-6 
    Details
    ISSN: 1432-0630
    Keywords: 75.50.kj ; 75.80+q ; 76.80.+y
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The influence of radio frequency (rf) magnetic fields on the properties of amorphous Fe40Ni40B20 was studied using Mössbauer spectroscopy. The measurements were performed with frequencies of 67 and 53 MHz and rf field intensity in the range of 1 to 12 Oe. The narrowing of the hyperfine spectra due to the rf field and the formation of rf sidebands were observed. The effect of instability and crystallization of the amorphous metal enhanced by the rf field at temperatures much lower than the crystallization temperature was observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00899562
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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