Robert Leisure

Personal Home Page

http://www.physics.colostate.edu/People/faculty/RobertLeisure

Articles in Scholarly Journals [Incomplete List]

  1. Elastic properties of the Ta–V system: bcc Ta 0.33 V 0.67 and C15 TaV 2
    Philosophical Magazine, vol. 87, no. 2, pp. 299–306, 2007
  2. Elastic moduli of a Ti-Zr-Ni i -phase quasicrystal as a function of temperature
    Philosophical Magazine, vol. 87, no. 1, pp. 1–10, 2007
  3. Breakdown of frequency-spectra scaling of Si nanoparticles
    Physical Review B, vol. 76, no. 8, 2007
  4. Defect pinning of interface motion in thermoelastic structural transitions of Cu-Al-Ni shape-memory alloy
    Physical Review B, vol. 73, no. 22, 2006
  5. Role of shear stiffening in reducing hydrogenation in intermetallic compounds
    Applied Physics Letters, vol. 89, no. 20, p. 201909, 2006
  6. Elastic constants of monocrystal iron from 3 to 500 K
    Journal of Applied Physics, vol. 100, no. 11, p. 113530, 2006
  7. Digital ultrasonic pulse-echo overlap system and algorithm for unambiguous determination of pulse transit time
    Review of Scientific Instruments, vol. 76, no. 11, p. 114902, 2005
  8. Complete Elastic Tensor through the First-Order Transformation in U_{2}Rh_{3}Si_{5}
    Physical Review Letters, vol. 95, no. 7, 2005
  9. Thermal expansion of the C15 Laves-phase materials TaV 2 and TaV 2 H x
    Philosophical Magazine, vol. 85, no. 36, pp. 4509–4514, 2005
  10. Ultrasonic evidence for hydrogen tunneling in a Laves-phase material: TaV_{2}H(D)_{x}
    Physical Review B, vol. 69, no. 14, 2004
  11. Fast hydrogen motion in the C15 Laves-phase compound ZrCr2H(D)x studied by ultrasound
    Journal of Physics: Condensed Matter, vol. 16, no. 46, pp. 8421–8428, 2004
  12. Low-temperature elastic and piezoelectric constants of paratellurite (a-TeO[sub 2])
    Journal of Applied Physics, vol. 96, no. 11, p. 6201, 2004
  13. Elastic properties of LaSn[sub x]Ni[sub 5-x] compounds
    Journal of Applied Physics, vol. 95, no. 3, p. 1089, 2004
  14. Internal friction studies by resonant ultrasound spectroscopy
    Materials Science and Engineering A, vol. 370, no. 1-2, pp. 34–40, 2004
  15. Temperature dependence of the elastic moduli of polycrystalline LaAlxNi5?x and LaSnxNi5?x
    Journal of Alloys and Compounds, vol. 376, no. 1-2, pp. 139–144, 2004
  16. Elastic moduli of polycrystalline TiCr1.8 over the temperature range of 3–410K
    Journal of Alloys and Compounds, vol. 365, no. 1-2, pp. 68–72, 2004
  17. Elastic properties of intermetallic AB and AB hydrogen-absorbing compounds
    Journal of Alloys and Compounds, vol. 356-357, pp. 283–289, 2003
  18. Elastic moduli of polycrystalline ZrCo as a function of temperature
    Journal of Alloys and Compounds, vol. 346, no. 1-2, pp. 1–5, 2002
  19. Temperature dependence of the elastic shear modulus of the Laves-phase materials TaV2 and TaV2Hx
    Journal of Alloys and Compounds, vol. 330-332, no. 1-2, pp. 396–399, 2002
  20. Elastic moduli of polycrystalline LaAl[sub x]Ni[sub 5-x]
    Journal of Applied Physics, vol. 91, no. 8, p. 5010, 2002
  21. Strong hydrogen-related electronic effects on the shear elastic constant of TaV_{2}H(D)_{x}
    Physical Review B, vol. 65, no. 9, 2002
  22. Journal of Physics: Condensed Matter, vol. 13, no. 33, pp. 7327–7341, 2001
  23. Ultrasonic evidence for strong isotope effects on the local motion of H(D) in TaV_{2}H(D)_{x}
    Physical Review B, vol. 64, no. 21, 2001
  24. Ultrasonic study of hydrogen motion in a Ti-Zr-Ni icosahedral quasicrystal and a 1/1 bcc crystal approximant
    Physical Review B, vol. 61, no. 1, pp. 241–245, 2000
  25. Elastic moduli of the C15 Laves-phase materials TaV 2 , TaV 2 H(D) x and ZrCr 2
    Philosophical Magazine B, vol. 80, no. 9, pp. 1667–1679, 2000
  26. Journal of Physics: Condensed Matter, vol. 11, no. 3, pp. 799–806, 1999
  27. X-ray induced luminescence of high-purity, amorphous silicon dioxide
    Journal of Applied Physics, vol. 86, no. 4, p. 2042, 1999
  28. Elastic moduli of a Ti-Zr-Ni icosahedral quasicrystal and a 1/1 bcc crystal approximant
    Physical Review B, vol. 59, no. 17, pp. 11132–11135, 1999
  29. Acoustic study of texture in polycrystalline brass
    The Journal of the Acoustical Society of America, vol. 105, no. 5, p. 2663, 1999
  30. Journal of Physics: Condensed Matter, vol. 9, no. 28, pp. 6001–6029, 1997
  31. Electron spin resonance identification of a methyl associated organic radical in irradiated amorphous SiO2
    Journal of Applied Physics, vol. 80, no. 12, p. 6646, 1996
  32. The Ed' and triplet-state centers in x-irradiated high-purity amorphous SiO2
    Journal of Applied Physics, vol. 80, no. 7, p. 3744, 1996
  33. Fundamental Role of Creation and Activation in Radiation-Induced Defect Production in High-Purity Amorphous SiO_{2}
    Physical Review Letters, vol. 76, no. 16, pp. 2926–2929, 1996
  34. Role of radiolytic oxygen in the x-ray production and thermal annealing of defects in high-purity amorphous SiO2
    Physical Review B, vol. 53, no. 11, pp. 7182–7189, 1996
  35. Dominant role of E^{'} centers in x-ray-induced, visible luminescence in high-purity amorphous silicas
    Physical Review B, vol. 53, no. 14, pp. R8818–R8820, 1996
  36. Electron-spin-resonance identification of a -CH_{2}^{·} radical in irradiated amorphous SiO_{2}:OH
    Physical Review B, vol. 54, no. 21, pp. 15064–15072, 1996
  37. Temperature dependence of the elastic constants of LiKSO_{4} through a first-order structural phase transition
    Physical Review B, vol. 54, no. 13, pp. 9077–9085, 1996
  38. Multiple Interconversions of the E' and Oxygen-Hole Defect Centers in High-Purity Amorphous Silica during Anneal-Interrupted x Irradiation
    Physical Review Letters, vol. 74, no. 9, pp. 1605–1608, 1995
  39. Determination of depth profiles of E" defects in irradiated vitreous silica by electron paramagnetic-resonance imaging
    Journal of Applied Physics, vol. 77, no. 2, p. 790, 1995
  40. Elastic moduli of the Laves-phase pseudobinary compounds Zr(Al_{x}Fe_{1-x})_{2} as determined by ultrasonic measurements
    Physical Review B, vol. 50, no. 18, pp. 13792–13794, 1994
  41. Deuterium motion in yttrium studied by ultrasonic measurements
    Physical Review B, vol. 48, no. 2, pp. 887–892, 1993
  42. Hydrogen-isotope motion in scandium studied by ultrasonic measurements
    Physical Review B, vol. 48, no. 2, pp. 893–900, 1993
  43. Room-temperature elastic constants of Sc and ScD_{0.18}
    Physical Review B, vol. 48, no. 2, pp. 1276–1279, 1993
  44. Elastic constants of isotropic cylinders using resonant ultrasound
    The Journal of the Acoustical Society of America, vol. 94, no. 3, p. 1482, 1993
  45. Resonant ultrasound spectroscopic techniques for measurement of the elastic moduli of solids
    Physica B: Condensed Matter, vol. 183, no. 1-2, pp. 1–24, 1993
  46. Method for identification of the vibrational modes of a rectangular parallelepiped
    The Journal of the Acoustical Society of America, vol. 92, no. 2, p. 663, 1992
  47. Importance of structural instability to high-temperature superconductivity
    Physical Review Letters, vol. 67, no. 4, pp. 512–515, 1991
  48. Novel ultrasonic attenuation peak in a^{'}-PdD_{x}
    Physical Review B, vol. 38, no. 8, pp. 5748–5751, 1988
  49. Elastic constants of a’-phase PdH_{x} over the temperature range 4–300 K
    Physical Review B, vol. 37, no. 11, pp. 6482–6485, 1988
  50. Journal of Physics F: Metal Physics, vol. 18, no. 6, pp. 1127–1132, 1988
  51. Optical-phonon effects on the elastic constants of PdH_{x} and PdD_{x}
    Physical Review B, vol. 35, no. 14, pp. 7708–7709, 1987
  52. Ultrasonic relaxation rates in palladium hydride and palladium deuteride
    Physical Review B, vol. 33, no. 12, pp. 8325–8328, 1986
  53. Journal of Physics F: Metal Physics, vol. 13, no. 10, pp. 2025–2032, 1983
  54. Hydrogen motion in single-crystal palladium hydride as studied ultrasonically
    Physical Review B, vol. 27, no. 8, pp. 4872–4882, 1983
  55. Direct acoustical measurement of nuclear spin-lattice relaxation times: Application to aluminum and tantalum
    Physical Review B, vol. 23, no. 11, pp. 5681–5687, 1981
  56. Low-temperature ultrasonic velocity measurements in Na ß-alumina
    Physical Review B, vol. 21, no. 8, pp. 3721–3724, 1980
  57. Comparison of multiple-scan direct and lock-in detection in magnetic resonance: Application to nuclear acoustic resonance
    Review of Scientific Instruments, vol. 51, no. 4, p. 454, 1980
  58. Ultrasonic velocity dispersion in single-crystal indium
    Physical Review B, vol. 20, no. 8, pp. 3502–3504, 1979
  59. Saturation studies of nuclear acoustic resonance in aluminum
    Physical Review B, vol. 19, no. 7, pp. 3335–3342, 1979
  60. Elastic constants of palladium and ß-phase palladium hydride between 4 and 300 K
    Physical Review B, vol. 20, no. 4, pp. 1339–1344, 1979
  61. Nuclear acoustical resonance in aluminum in the intermediate temperature region
    Physical Review B, vol. 18, no. 3, pp. 1508–1513, 1978
  62. Rotatable sample holder with voltage readout for low-temperature experiments
    Review of Scientific Instruments, vol. 48, no. 11, p. 1402, 1977
  63. Observation of nuclear acoustic resonance in lead
    Solid State Communications, vol. 17, no. 1, pp. 67–70, 1975
  64. Anomalous nuclear-acoustic-resonance signals in aluminum
    Physical Review B, vol. 11, no. 11, pp. 4106–4109, 1975
  65. Nuclear-acoustic-resonance study of electric quadrupole interactions and spin-phonon coupling in an aluminum-zinc alloy
    Physical Review B, vol. 12, no. 11, pp. 4702–4707, 1975
  66. Elastic properties of tantalum over the temperature range 4–300 K
    Journal of Applied Physics, vol. 44, no. 8, p. 3394, 1973
  67. Nuclear-Acoustic-Resonance Absorption and Dispersion in Aluminum
    Physical Review Letters, vol. 30, no. 26, pp. 1326–1329, 1973
  68. An Improved CW Technique for Measurement of Ultrasonic Attenuation
    Review of Scientific Instruments, vol. 43, no. 7, p. 1021, 1972
  69. Observation of Higher-Order Acoustic Paramagnetic-Resonance Transitions in MgO: Fe2+
    Physical Review Letters, vol. 28, no. 25, pp. 1618–1620, 1972
  70. Ultrasonic Measurements in MnF2 near the Néel Temperature
    Physical Review, vol. 188, no. 2, pp. 840–844, 1969
  71. A Continuous Wave Technique for the Automatic Measurement of Ultrasonic Velocity Changes
    Review of Scientific Instruments, vol. 40, no. 7, p. 946, 1969
  72. cw Microwave Spectrometer for Ultrasonic Paramagnetic Resonance
    Review of Scientific Instruments, vol. 39, no. 3, p. 424, 1968
  73. cw Microwave Spectrometer for Ultrasonic Paramagnetic Resonance
    Review of Scientific Instruments, vol. 39, no. 2, p. 199, 1968
  74. Temperature Dependence of Ultrasonic Paramagnetic Resonance in MgO: Fe2+
    Physical Review Letters, vol. 19, no. 17, pp. 957–960, 1967