scholarly journals Specific heat and entropy change at the first order phase transition of La(Fe-Mn-Si)13-H compounds

2015 ◽  
Vol 118 (5) ◽  
pp. 053907 ◽  
Author(s):  
Vittorio Basso ◽  
Michaela Küpferling ◽  
Carmen Curcio ◽  
Cecilia Bennati ◽  
Alexander Barzca ◽  
...  
Keyword(s):  
Phase Transition ◽  
Specific Heat ◽  
Order Phase Transition ◽  
Entropy Change ◽  
First Order ◽  
First Order Phase Transition ◽  
First Order Phase

Specific heat at a first-order phase transition: SbSI

1981 ◽  
Vol 24 (5) ◽  
pp. 2807-2811 ◽  
Author(s):  
S. Stokka ◽  
K. Fossheim ◽  
S. Ziolkiewicz
Keyword(s):  
Phase Transition ◽  
Specific Heat ◽  
Order Phase Transition ◽  
First Order ◽  
First Order Phase Transition ◽  
First Order Phase

Calculation of the Specific Heat for the First Order Phase Transition in NH4Br

1998 ◽  
Vol 12 (25n26) ◽  
pp. 1089-1095 ◽  
Author(s):  
H. Yurtseven ◽  
A. Yanik ◽  
W. F. Sherman
Keyword(s):  
Phase Transition ◽  
Ising Model ◽  
Specific Heat ◽  
Order Phase Transition ◽  
First Order ◽  
First Order Phase Transition ◽  
First Order Phase ◽  
Good Agreement ◽  
Observed Behavior

We calculate in this work the specific heat CVI using the predictions of an Ising model for the NH 4 Br crystal (T C =234 K, P=0). Our calculated CVI values are in good agreement with the experimentally observed CP data from the literature. This shows that the observed behavior of NH 4 Br can be described adequately in the lattice region under an Ising model studied here.

SPECIFIC HEAT IN MONO-CRYSTAL YBCO: λ-LIKE ANOMALIES AT 90K AND 229K

1988 ◽  
Vol 02 (05) ◽  
pp. 1171-1183 ◽  
Author(s):  
K. Fossheim ◽  
O. M. Nes ◽  
T. Lægreid ◽  
C. N. W Darlington ◽  
D. A. O'Connor ◽  
...  
Keyword(s):  
Phase Transition ◽  
Specific Heat ◽  
High Precision ◽  
Order Phase Transition ◽  
Ybco Superconductor ◽  
Superconducting Transition ◽  
First Order ◽  
Temperature Range ◽  
First Order Phase Transition ◽  
First Order Phase

The specific heat, C p , has been measured with high precision in a mono-crystal of YBa 2 Cu 3 O 7−δ (YBCO) superconductor in the temperature range 55K-300K. The measurements provide data with a relative resolution Δ C p / C p of approximately 5 · 10−4. The main conclusions are: 1) Close to the superconducting transition the specific heat shows influence of fluctuations. 2) A reversible second order or weakly first order phase transition is found to occur at T o = 229 K .

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