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  • 1
    Electronic Resource
    Electronic Resource
    A modified dual-slope method for heat capacity measurements of condensable gases (2000)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 71 (2000), S. 3841-3845 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A high resolution nonadiabatic method for measuring the heat capacity (CP) of bulk samples of condensable gases in the range of 7.5–70 K is described. In this method CP is evaluated by directly comparing the heating and cooling rates of the sample temperature for two algebraically independent heat pulse sequences without explicit use of the thermal conductance between sample and thermal bath. A fully automated calorimeter for rapid measurement of CP of molecular solids utilizing this technique is presented. The technique along with the automated calorimeter with a provision to apply external electric and magnetic fields is particularly useful for the study of continuous phase transitions in molecular solids as well as field induced changes in the heat capacity. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1290040
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  • 2
    Electronic Resource
    Electronic Resource
    Very high sensitivity ac capacitance bridge for the dielectric study of molecular solids at low temperatures (1999)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 70 (1999), S. 4055-4058 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: An ac capacitance bridge with excellent stability and two parts per billion resolution in the real part of the dielectric constant at temperatures ranging from 4.2 to 80 K and in the audio frequency range (0.2–20 kHz) is reported. The method uses commercially available components as well as few homemade cables and capacitors. Construction details and data on the resolution are presented. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1150035
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  • 3
    Electronic Resource
    Electronic Resource
    The Orientational Ordering in Dilute Solid N2–Ar Mixtures (1998)
    Springer
    Journal of low temperature physics 111 (1998), S. 365-370 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract NMR studies have been carried out to determine the nature of the orientational ordering of N 2 in dilute solid N 2–Ar mixtures. The orientational ordering for cubic lattices (x(N 2)≍50%) was compared to that observed for the hexagonal lattice structures for 57 〈 x(N 2) 〈 75%. The NMR line shapes for the cubic structures were found to be sharply defined and could only be explained in terms of a narrow distribution of order parameters. This is in contrast to the quadrupolar glass state with a very broad order parameter distribution observed for the hexagonal structures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022287720183
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    Paper (German National Licenses)
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