Browsing White, Mary Anne by Title

Now showing items 10-29 of 45

  • Heat capacity of gadolinium near the Curie temperature. 

    Bednarz, Grzegorz, D. J. W. Geldart, and Mary Anne White. 1993. "Heat capacity of gadolinium near the Curie temperature.." Physical Review B: Condensed Matter and Materials Physics 47(21): 14247-14259. Copyright © 1993 American Physical Society.
    High-resoln. ac calorimetric data near the Curie point are reported for several single crystals of gadolinium. The crit. temp. and the shape of the heat-capacity curve near Tc both depend on the sample-prepn. procedure, ...

  • Heat capacity, lattice dynamics, and thermodynamic stability of the negative thermal expansion material HfMo2O8 

    Kennedy, Catherine A., Mary Anne White, Angus P. Wilkinson, and Tamas Varga. 2007. "Heat capacity, lattice dynamics, and thermodynamic stability of the negative thermal expansion material HfMo2O8." Physical Review B 75(22): 224302-224302. Copyright © 2007 American Physical Society.
    We explore the lattice dynamics of the negative thermal expansion material, cubic HfMo2O8, through analysis of its heat capacity (measured from 0.5 to 300 K) and its room-temperature Raman spectrum. Its heat capacity is ...

  • High-resolution, high-sensitive ac calorimeter. 

    Bednarz, Grzegorz, Brian Millier, and Mary Anne White. 1992. "High-resolution, high-sensitive ac calorimeter.." Review of Scientific Instruments 63(8): 3944-3952.
    A high-resoln., high-sensitivity, automated ac calorimeter capable of heat capacity measurements of very small samples (m < 20 mg) with a temp. resoln. of a few mK in the ac mode is described. This calorimeter also can be ...

  • High-throughput resistivity apparatus for thin-film combinatorial libraries 

    Hewitt, KC, PA Casey, RJ Sanderson, MA White, et al. 2005. "High-throughput resistivity apparatus for thin-film combinatorial libraries." Review of Scientific Instruments 76(9): 093906-093906.
    An apparatus, capable of measuring the dc resistance versus temperature of a 49-member library prepared by thin-film deposition techniques was designed and tested. The library is deposited by dc magnetron sputtering onto ...

  • Investigation of factors affecting crystallization of cyclopentane clathrate hydrate 

    Reproduced from Whitman, Catherine A., Roman Mysyk, and Mary Anne White. 2008. "Investigation of factors affecting crystallization of cyclopentane clathrate hydrate." Journal of Chemical Physics 129(17): 174502-174502, with the permission of AIP Publishing.
    We report the results of systematic investigations of the influence of thermal history and other factors on crystallization of a model clathrate hydrate (cyclopentane hydrate) studied as water-in-oil and oil-in-water ...

  • Low thermal conductivity of the negative thermal expansion material, HfMo2O8 

    Kennedy, Catherine A., Mary Anne White, Angus P. Wilkinson, and Tamas Varga. 2007. "Low thermal conductivity of the negative thermal expansion material, HfMo2O8." Applied Physics Letters 90(15): 151906-151906.
    The thermal conductivity of the cubic polymorph of hafnium molybdate, HfMo2O8, was determined over the temperature range of 2-400 K. The values of thermal conductivity were low (0.64 +/- 0.15 W m(-1) K-1 at T=300 K for a ...

  • The nature of ammonium ion disorder in ammonium tetrafluoroaluminate, NH4AlF4. 

    Reproduced from White, Mary Anne, and Brian D. Wagner. 1985. "The nature of ammonium ion disorder in ammonium tetrafluoroaluminate, NH4AlF4.." Journal of Chemical Physics 83(11): 5844-5848, with the permission of AIP Publishing.
    To clarify previous conflicting reports concerning the existence of an order-disorder phase transition in NH4AlF4 at T ?150 K, the heat capacity of this compd. was measured from T = 15 to 305 K, by adiabatic calorimetry. ...

  • Neutron-Scattering Spectra from the Hindered Rotation of Methane in Methane + Krypton Mixtures Adsorbed on Graphite 

    ALLEN, MP, CB HOVENDEN, RP HUMES, SK METHA, et al. 1985. "Neutron-Scattering Spectra from the Hindered Rotation of Methane in Methane + Krypton Mixtures Adsorbed on Graphite." Faraday discussions 80: 171-182.
    No abstract available.

  • Orientational Ordering and Tunneling States in Solid CH2D2 as Deduced from Low-Temperature Heat-Capacity and Neutron Cross-Section Measurements 

    Reproduced from WHITE, MA, KJ LUSHINGTON, and JA MORRISON. 1978. "Orientational Ordering and Tunneling States in Solid CH2D2 as Deduced from Low-Temperature Heat-Capacity and Neutron Cross-Section Measurements." Journal of Chemical Physics 69(9): 4227-4233, with the permission of AIP Publishing.
    No abstract available.

  • Phase transitions in M(ClO4)2.6H2O (M = magnesium, zinc). Investigations by adiabatic calorimetry and infrared spectroscopy. 

    Reproduced from White, Mary Anne, and Michael Falk. 1986. "Phase transitions in M(ClO4)2.6H2O (M = magnesium, zinc). Investigations by adiabatic calorimetry and infrared spectroscopy.." Journal of Chemical Physics 84(6): 3484-3490, with the permission of AIP Publishing.
    IR spectra of Mg(ClO4)2.6H2O at 10 K indicate a complex structure contg. at least 16 distinct types of H2O protons. At 107.9 K this structure transforms sharply to a much simpler disordered form (?Strans = 7.754 J K-1 ...

  • Phase transitions in metal perchlorate hydrates: the supposed hydrate-to-pseudohydrate transformations. 

    Reproduced from Falk, Michael, Ping F. Seto, and Mary Anne White. 1984. "Phase transitions in metal perchlorate hydrates: the supposed hydrate-to-pseudohydrate transformations.." Journal of Chemical Physics 81(8): 3752-3753, with the permission of AIP Publishing.
    A polemic. The hydrate-to-pseudohydrate transformations in metal perchlorate hydrates reported by M. B. Patel and H. D. Brist (ibid. 1983, 79, 4489) and Solid State Commun. (48, 139 (1983)) as well as the suggested ...

  • Phase-III of Cd4 - Reconciliation of Inelastic Neutron-Scattering and Heat-Capacity Measurements of Rotational Tunneling Levels 

    Reproduced from WHITE, MA. 1982. "Phase-III of Cd4 - Reconciliation of Inelastic Neutron-Scattering and Heat-Capacity Measurements of Rotational Tunneling Levels." Journal of Chemical Physics 77(3): 1610-1611, with the permission of AIP Publishing.
    No abstract available.

  • Phase-Transitions in Mg(ClO4)2.6H20, Zn(ClO4)2.6H2O - Investigations by Adiabatic Calorimetry and Infrared-Spectroscopy 

    Reproduced from WHITE, MA, and M. FALK. 1986. "Phase-Transitions in Mg(ClO4)2.6H20, Zn(ClO4)2.6H2O - Investigations by Adiabatic Calorimetry and Infrared-Spectroscopy." Journal of Chemical Physics 84(6): 3484-3490, with the permission of AIP Publishing.
    No abstract available.

  • The Phase-Transitions of Ferroelastic K2SeBr6 - a Calorimetric and X-Ray-Diffraction Study 

    Reproduced from ABRIEL, W., and MA WHITE. 1990. "The Phase-Transitions of Ferroelastic K2SeBr6 - a Calorimetric and X-Ray-Diffraction Study." Journal of Chemical Physics 93(11): 8321-8327, with the permission of AIP Publishing.
    No abstract available.

  • Photoacoustic Investigation of the Temperature and Magnetic-Field Dependence of the Specific-Heat Capacity and Thermal-Conductivity Near the Curie-Point of Gadolinium 

    GLORIEUX, C., J. THOEN, G. BEDNARZ, MA WHITE, et al. 1995. "Photoacoustic Investigation of the Temperature and Magnetic-Field Dependence of the Specific-Heat Capacity and Thermal-Conductivity Near the Curie-Point of Gadolinium." Physical Review B 52(17): 12770-12778. Copyright © 1995 American Physical Society.
    The photoacoustic technique was used as a simple but accurate tool to simultaneously determine the specific-heat capacity C and thermal conductivity kappa of gadolinium in the neighborhood of the Curie point. One ...

  • Possible Dimensional Effect on Heat-Capacity of Molecular Solids 

    WHITE, MA, and JA MORRISON. 1978. "Possible Dimensional Effect on Heat-Capacity of Molecular Solids." Physical Review Letters 40(24): 1574-1576. Copyright © 1978 American Physical Society.
    No abstract available.

  • Spin waves and quantum criticality in the frustrated XY pyrochlore antiferromagnet Er2Ti2O7 

    Ruff, J. P. C., J. P. Clancy, A. Bourque, M. A. White, et al. 2008. "Spin waves and quantum criticality in the frustrated XY pyrochlore antiferromagnet Er2Ti2O7." Physical Review Letters 101(14): 147205-147205. Copyright © 2008 American Physical Society.
    We report detailed measurements of the low temperature magnetic phase diagram of Er2Ti2O7. Heat capacity and time- of- flight neutron scattering studies of single crystals reveal unconventional low- energy states. Er3+ ...

  • Structural principles and amorphouslike thermal conductivity of Na-doped Si clathrates 

    Tse, JS, K. Uehara, R. Rousseau, A. Ker, et al. 2000. "Structural principles and amorphouslike thermal conductivity of Na-doped Si clathrates." Physical Review Letters 85(1): 114-117. Copyright © 2000 American Physical Society.
    The postulated low thermal conductivity and the possibility of altering the electronic conductivity of metal-doped clathrates with semiconducting host elements have stimulated great interest in exploring these compounds ...

  • Structural principles and amorphouslike thermal conductivity of Na-doped Si clathrates (vol 85, pg 114, 2000) 

    Tse, JS, K. Uehara, R. Rousseau, A. Ker, et al. 2001. "Structural principles and amorphouslike thermal conductivity of Na-doped Si clathrates (vol 85, pg 114, 2000)." Physical Review Letters 86(21): 4980-4980. Copyright © 2001 American Physical Society.
    No abstract available.

  • Structure, thermal, and transport properties of the clathrates Sr8Zn8Ge38, Sr8Ga16Ge30, and Ba8Ga16Si30 

    Qiu, LY, IP Swainson, GS Nolas, and MA White. 2004. "Structure, thermal, and transport properties of the clathrates Sr8Zn8Ge38, Sr8Ga16Ge30, and Ba8Ga16Si30." Physical Review B 70(3): 035208-035208. Copyright © 2004 American Physical Society.
    The structural parameters, thermal properties, and transport properties of three type I clathrates, namely Sr8Zn8Ge38, Sr8Ga16Ge30, and Ba8Ga16Si30, have been determined at or below room temperature. The structural ...