lattice specific heat
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2018 ◽  
Author(s):  
Airat Kiiamov ◽  
Yury Lysogorskiy ◽  
Zakir Seidov ◽  
H.-A. Krug von Nidda ◽  
Vladimir Tsurkan ◽  
...  

2018 ◽  
Author(s):  
Airat Kiiamov ◽  
Yury Lysogorskiy ◽  
Zakir Seidov ◽  
H.-A. Krug von Nidda ◽  
Vladimir Tsurkan ◽  
...  

2016 ◽  
Vol 407 ◽  
pp. 406-411 ◽  
Author(s):  
Jorge I. Facio ◽  
D. Betancourth ◽  
N.R. Cejas Bolecek ◽  
G.A. Jorge ◽  
Pablo Pedrazzini ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
Rasna Thakur ◽  
N. K. Gaur

We have investigated the bulk modulus and thermal properties of La1-xSmxCoO3 (0≤x≤0.2) at temperatures 1 K≤T≤300 K probably for the first time by incorporating the effect of lattice distortions using the modified rigid ion model (MRIM). The calculated specific heat, thermal expansion, bulk modulus, and other thermal properties reproduce well with the available experimental data, implying that MRIM represents properly the nature of the pure and doped cobaltate. The specific heats are found to increase with temperature and decrease with concentration (x) for the present. The increase in Debye temperature (θD) indicates an anomalous softening of the lattice specific heat because increase in T3-term in the specific heat occurs with the decrease of concentration (x).


2014 ◽  
Vol 2014 ◽  
pp. 1-4
Author(s):  
Zhiyong Han ◽  
Zhenzhu Jing

The low temperature specific heat of polycrystalline perovskite-type Pr0.65Ca0.35MnO3manganese oxide has been investigated experimentally. It is found that the low temperature electron specific heat in zero magnetic field is obviously larger than that of ordinary rare-earth manganites oxide. To get the contribution of phonon to the specific heat precisely, the lattice specific heat is calculated by Debye model fitting. Results confirm that the low temperature specific heat of Pr0.65Ca0.35MnO3is related to the itinerant electrons in ferromagnetic clusters and the disorder in the sample.


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