Phonon and thermal expansion properties in Weyl semimetals MX (M = Nb, Ta; X = P, As): ab initio studies

2016 ◽  
Vol 18 (21) ◽  
pp. 14503-14508 ◽  
Author(s):  
Dahu Chang ◽  
Yaming Liu ◽  
Fengfei Rao ◽  
Fei Wang ◽  
Qiang Sun ◽  
...  

Thermal expansion properties of Weyl semimetals MX are determined mainly by the isovolume heat capacity at low temperatures, whereas bulk modulus at high temperatures.

1985 ◽  
Vol 38 (4) ◽  
pp. 617 ◽  
Author(s):  
JG Collins ◽  
SJ Collocott ◽  
GK White

The linear thermal expansion coefficient a from 2 to 100 K and heat capacity per gram cp from 0�3 to 30 K are reported for fully-stabilized zirconia containing a nominal 16 wt.% (9 mol.%) of yttria. The heat capacity below 7 K has been analysed into a linear (tunnelling?) term, a Schottky term centred at 1�2 K, a Debye term (e~ = 540 K), and a small T5 contribution. The expansion coefficient is roughly proportional to T from 5 to 20 K and gives a limiting lattice Griineisen parameter 'Yo ::::: 5, which agrees with that calculated from elastic data.


2015 ◽  
Vol 44 (36) ◽  
pp. 15865-15871 ◽  
Author(s):  
V. V. Novikov ◽  
N. A. Zhemoedov ◽  
A. V. Matovnikov ◽  
N. V. Mitroshenkov ◽  
S. V. Kuznetsov ◽  
...  

Heat capacity and thermal expansion of LuB50 boride were experimentally studied in the 2–300 K temperature range.


2012 ◽  
Vol 111 (6) ◽  
pp. 063907 ◽  
Author(s):  
V. V. Novikov ◽  
N. V. Mitroshenkov ◽  
A. V. Morozov ◽  
A. V. Matovnikov ◽  
D. V. Avdashchenko

2016 ◽  
Vol 45 (43) ◽  
pp. 17447-17452 ◽  
Author(s):  
V. V. Novikov ◽  
N. A. Zhemoedov ◽  
N. V. Mitroshenkov ◽  
A. V. Matovnikov

We experimentally study the heat capacity and thermal expansion of thulium boride (TmB50) at temperatures of 2–300 K.


1989 ◽  
Vol 162-164 ◽  
pp. 566-567 ◽  
Author(s):  
R. Villar ◽  
S. Bourgeal ◽  
S. Vieira ◽  
J.M. Gonzalez-Calbet ◽  
M. Vallet-Regi

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