Mary Anne White

University Research Professor
Cross-appointed to Physics and Atmospheric Science

Email: mary.anne.white@dal.ca

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Recent Submissions

  • Automated, small sample-size adiabatic calorimeter. 

    Van Oort, Michiel J. M., and Mary Anne White. 1987. "Automated, small sample-size adiabatic calorimeter.." Review of Scientific Instruments 58(7): 1239-1241.
    An automated adiabatic calorimeter is described with an internal vol. of 5 cm3, operable at 30-380 K. One of the main advantages of this calorimeter over others in use is the shorter down time during sample changes, due ...
  • 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 ...
  • X-ray absorption spectroscopy studies of local structure and electronic properties of NaxSi136 (0 < x < 24) clathrates 

    Ritchie, Andrew D., Mark A. MacDonald, Peng Zhang, Mary Anne White, et al. 2010. "X-ray absorption spectroscopy studies of local structure and electronic properties of NaxSi136 (0 < x < 24) clathrates." Physical Review B 82(15): 155207-155207. Copyright © 2010 American Physical Society.
    We have probed both the local structure and the electronic properties of Na-containing type II Si clathrates by x-ray absorption spectroscopy. The near-edge region of the spectrum is particularly sensitive to the local ...
  • 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 ...
  • Thermal and lattice dynamical properties of Na8Si46 clathrate 

    Qiu, LY, MA White, ZQ Li, JS Tse, et al. 2001. "Thermal and lattice dynamical properties of Na8Si46 clathrate." Physical Review B 64(2): 024303-024303. Copyright © 2001 American Physical Society.
    The experimental heat capacity of Na8Si46 has been determined from 35-300 K, and its lattice parameters have been measured over the range 100-330 K. The experimental heat capacity and the thermal-expansion coefficient ...
  • 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, ...
  • 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.
  • A thermodynamic investigation of dynamical disorder in phase II of CBr4. 

    Reproduced from Michalski, Darek, and Mary Anne White. 1995. "A thermodynamic investigation of dynamical disorder in phase II of CBr4.." Journal of Chemical Physics 103(14): 6173-6176, with the permission of AIP Publishing.
    CBr4 is an archetypal example of a pseudospherical mol. that can form an orientationally disordered phase (phase I, 320 K < T < 365 K). At lower temps., phase II is the stable phase; although it must be more ordered than ...
  • Thermal conductivity of an organic clathrate: Possible generality of glasslike thermal conductivity in crystalline molecular 

    Reproduced from Michalski, D., and MA White. 1997. "Thermal conductivity of an organic clathrate: Possible generality of glasslike thermal conductivity in crystalline molecular." Journal of Chemical Physics 106(14): 6202-6203, with the permission of AIP Publishing.
    No abstract available.
  • Technique for determination of accurate heat capacities of volatile, powdered, or air-sensitive samples using relaxation calorimetry 

    Marriott, Robert A., Maria Stancescu, Catherine A. Kennedy, and Mary Anne White. 2006. "Technique for determination of accurate heat capacities of volatile, powdered, or air-sensitive samples using relaxation calorimetry." Review of Scientific Instruments 77(9): 096108-096108.
    We introduce a four-step technique for the accurate determination of the heat capacity of volatile or air-sensitive samples using relaxation calorimetry. The samples are encapsulated in a hermetically sealed differential ...
  • Characterization of the Incommensurate Phase of [P(CH3)4]2CuCl4 

    PRESSPRICH, MR, MR BOND, RD WILLETT, and MA WHITE. 1989. "Characterization of the Incommensurate Phase of [P(CH3)4]2CuCl4." Physical Review B 39(5): 3453-3456. Copyright © 1989 American Physical Society.
    No abstract available.
  • Thermal and Diffraction Studies of Phase-Transitions in the Incommensurate Compound [P(Ch3)(4)]2CuCl4 

    BEDNARZ, G., MA WHITE, MR PRESSPRICH, and RD WILLETT. 1994. "Thermal and Diffraction Studies of Phase-Transitions in the Incommensurate Compound [P(Ch3)(4)]2CuCl4." Physical Review B 49(2): 832-837. Copyright © 1994 American Physical Society.
    Calorimetric and x-ray-diffraction studies of the commensurate
  • Transport properties of Na8Si46 

    Nolas, GS, JM Ward, J. Gryko, L. Qiu, et al. 2001. "Transport properties of Na8Si46." Physical Review B 64(15): 153201-153201. Copyright © 2001 American Physical Society.
    We report on transport properties of polycrystalline Na8Si46 in the temperature range 10 to 300 K. The compound is a type I clathrate with Na incorporated into polyhedra formed by framework Si atoms. Seebeck coefficient ...
  • Apparatus for dynamical thermal measurements of low-thermal diffusivity particulate materials at subambient temperatures 

    Murashov, VV, and MA White. 1998. "Apparatus for dynamical thermal measurements of low-thermal diffusivity particulate materials at subambient temperatures." Review of Scientific Instruments 69(12): 4198-4204.
    Apparatus for measurement of thermal diffusivity of particulate matter in the temperature range of 10-300 K is described. The basis of the measurement is modulated radial heat flow into a cylindrical sample, with a relatively ...
  • 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 ...
  • 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 ...
  • Dynamics of anions and cations in cesium hydrogensulfide (CsHS, CsDS): Neutron and x-ray diffraction, calorimetry and proton NMR investigations 

    Reproduced from Haarmann, F., H. Jacobs, W. Kockelmann, J. Senker, et al. 2002. "Dynamics of anions and cations in cesium hydrogensulfide (CsHS, CsDS): Neutron and x-ray diffraction, calorimetry and proton NMR investigations." Journal of Chemical Physics 117(10): 4961-4972, with the permission of AIP Publishing.
    Protonated and deuterated samples of the hydrogensulfide of cesium were studied by high-resolution neutron powder diffraction, calorimetry and proton NMR investigations in a wide temperature range. Primarily due to ...
  • 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 ...

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