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  • Articles: DFG German National Licenses  (2)
  • 1995-1999  (1)
  • 1985-1989
  • 1960-1964  (1)
  • 1999  (1)
  • 1962  (1)
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  • Articles: DFG German National Licenses  (2)
Material
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  • 1995-1999  (1)
  • 1985-1989
  • 1960-1964  (1)
Year
  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 86 (1999), S. 4539-4543 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Polycrystalline Permalloy films were deposited onto silicon substrates by rf sputtering. Arrays of cylindrical dots with diameter d between 150 and 550 nm were patterned by optical holographic lithography. The dots were arranged on a square lattice with period p, ranging from 310 to 1030 nm. The height h of dots, given by the thickness of the permalloy films, ranged between 10 and 80 nm. The shape of the magnetization loops of the dot arrays depends strongly on the aspect ratio r=d/h. The in-plane saturation field is given by the intrinsic demagnetization field of single, isolated dots. The dipolar interaction between the dots is negligible. For cylinders with elliptical base plane, the magnetization loop depends on the field direction. The measured magnetization loops of the arrays are the superposition of the magnetization loops of the single dots without dipolar interaction. A model of magnetization reversal in applied fields is given. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 315 (1962), S. 283-290 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The RAMAN- and TR-spectra of solid, fused, and dissolved (CH3)3SnOH and liquid (CH3)3SnOSn((CH3)3 are reported and the frequencies axe assigned. The spectra of Cl3SnOH and Cl3SnOCH3 · CH3OH are measured to establish the assignement of the SnO-stretching frequency. (CH3)3SnOH forms no H-bridges but associates building Sn-O-Sn-bridges. In aqueous solutions, (CH3)3SnOH is partially dissociated.
    Notes: Die RAMAN- und IR-Spektren des festen und in H2O bzw. CCl4 gelösten (CH3)3SnOH und des flüssigen (CH3)3SnOSn(CH3)3 werden mitgeteilt und die Frequenzen zugeordnet.Zur Sicherung der SnO-Valenzschwingung wurden außerdem die Spektren des Cl3SnOH und Cl3SnOCH3 · CH3OH gemessen. Die Spektren zeigen, daß das |CH3|3SnOH nicht über Wasserstoffbrücken, sondern über Sn-O-Sn-Brücken assoziiert. Der so erreichte Zustand ist offensichtlich sehr stabil, so daß das (CH3)3SnOSn(CH3)3 bereits bei Einwirkung kleinster Mengen Wasser in (CH3)3SnOH übergeht.In den wäßrigen Lösungen des (CH3)3SnOH treten neben undissoziierter Base (CH3)3Sn+-Kationen auf.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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