The Debye characteristic temperature of nanodiamond thin films

2009 ◽  
Author(s):  
Yongjie Wang ◽  
Qingxun Zhao ◽  
Zhanlong Zhao ◽  
Zengqian Yin ◽  
Qian Yang ◽  
...  
Keyword(s):  
Thin Films ◽  
Characteristic Temperature ◽  
Debye Characteristic Temperature

The crystal dynamics of cuprous halides

1982 ◽  
Vol 60 (11) ◽  
pp. 1589-1594 ◽  
Author(s):  
Manvir S. Kushwaha
Keyword(s):  
Phonon Dispersion ◽  
Characteristic Temperature ◽  
Force Model ◽  
Phonon Dispersion Curves ◽  
Debye Characteristic Temperature ◽  
Zinc Blende ◽  
Crystal Dynamics ◽  
Bond Bending ◽  
Dynamical Description ◽  
Good Agreement

The lattice dynamics of cuprous halides have been thoroughly investigated by means of an 8-parameter bond-bending force model (BBFM), recently developed and applied successfully to study phonons in various II–VI and III–V compound semiconductors having zinc-blende (ZB) structure. The application of BBFM is made to calculate the phonon dispersion relations, phonon density of states, and temperature variation of the Debye characteristic temperature [Formula: see text] of CuCl, CuBr, and CuI. The room-temperature neutron scattering measurements for phonon dispersion curves along three principal symmetry directions and calorimetric experimental data for the Debye characteristic temperature have been used to check the validity of BBFM for the three crystals. The overall good agreement between theoretical and experimental results supports its use as an appropriate model for the dynamical description of ZB crystals.

scholarly journals Связь макроскопических характеристик твердого тела с энергией связи иона в решетке металлов

2021 ◽  
Vol 63 (7) ◽  
pp. 825
Author(s):  
К.М. Ерохин ◽  
Н.П. Калашников
Keyword(s):  
Binding Energy ◽  
Elastic Deformation ◽  
Sound Speed ◽  
Simple Formula ◽  
Characteristic Temperature ◽  
Deformation Modulus ◽  
Debye Characteristic Temperature ◽  
Individual Atom ◽  
The Relationship ◽  
Macroscopic Parameters

Abstract: The paper examines the relationship between the macroscopic parameters, such as the Young's modulus in the Hooke's law, the sound speed and the Debye characteristic temperature, with the binding energy of an individual atom. A formula for calculating the elastic deformation modulus is proposed. A simple formula is obtained to calculate the sound speed in a metal rod. It is suggested that the Debay characteristic temperature is connected with the binding energy of the ion in the solid lattice.

Note on the Characteristic Temperatures of Sphalerite-Structure Semiconductors

1972 ◽  
Vol 50 (11) ◽  
pp. 1220-1221 ◽  
Author(s):  
M. D. Aggarwal ◽  
V. Raju ◽  
J. K. D. Verma
Keyword(s):  
Characteristic Temperature ◽  
Sphalerite Structure ◽  
Debye Characteristic Temperature ◽  
Characteristic Temperatures

The characteristic temperatures of III–V sphalerite semiconductors have been calculated by using the Reeber–McLachlan relation. These values do not follow the same trend as obtained for II–VI solids. However, the agreement with the Debye characteristic temperature is fair.

ANHARMONIC CONTRIBUTIONS TO THE BULK MODULUS AND CHARACTERISTIC TEMPERATURES OF NEON AND ARGON AT T = 0 °K

1967 ◽  
Vol 45 (9) ◽  
pp. 2995-2997 ◽  
Author(s):  
J. S. Brown ◽  
G. K. Horton
Keyword(s):  
Bulk Modulus ◽  
Excellent Agreement ◽  
Characteristic Temperature ◽  
Experimental Results ◽  
Debye Characteristic Temperature ◽  
Characteristic Temperatures ◽  
Lennard Jones ◽  
Anharmonic Potential ◽  
Potential Parameters

Anharmonic contributions to the bulk moduli of Ne and Ar are calculated for Lennard-Jones (m–6) potentials and compared with the experimental results at T = 0 °K. We consider direct anharmonic contributions to the bulk moduli and the anharmonic contributions via the use of Brown's (1966) anharmonic potential parameters. Excellent agreement is found with the experimental results of Peterson, Batchelder, and Simmons (1966) and Batchelder, Losee, and Simmons (1967).We also study the effect of the anharmonic parameters on the Debye characteristic temperature obtained from Cν. Improved agreement with the experimental results is found.

ELASTIC PROPERTIES AND DEBYE CHARACTERISTIC TEMPERATURE OF PARTIALLY MELTED YBa2Cu3O7−x SUPERCONDUCTOR

1988 ◽  
Vol 02 (09) ◽  
pp. 1111-1117 ◽  
Author(s):  
D.F. LEE ◽  
K. SALAMA
Keyword(s):  
Debye Temperature ◽  
Elastic Properties ◽  
Elastic Constants ◽  
Tetragonal Phase ◽  
Room Temperature ◽  
Characteristic Temperature ◽  
Shear Moduli ◽  
Debye Characteristic Temperature ◽  
Temperature Range ◽  
Free Material

The quasi-isotropic elastic constants are measured in a 85% dense partially melted YBa 2 Cu 3 C 7−x superconductor in the temperature range 80–300 K. The room temperature values of the longitudinal and shear moduli of the void-free material are found to be 168 and 59 GPa respectively, and no decrease in these constants is observed during the transition from normal to superconducting states. The Debye temperature is found to be 426 K which is comparable to that of the tetragonal phase polycrystalline BaTiO 3 (429 K).

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