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Magnetic phase transition in KGd(WO4)2 double tungstate

100%
Borowiec M., Zayarnyuk T., Gutowska M., Więckowski J., Szewczyk A., Dyakonov V., Zubov E., Barański M., Domukhovski V., Pujol M., Aguiló M., Díaz F., Szymczak H.
Open Physics
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2013
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vol. 11
|
issue 3
394-396
EN
Investigations of the specific heat of the potassium gadolinium double tungstate KGd(WO4)2 have been performed over the temperature range from 0.05 K up to 4 K in zero magnetic field. The λ -type anomaly observed at T = 0.42 K was interpreted as an indication of a second order magnetic phase transition within the Gadolinium sublattice. The critical exponent α was determined from experimental data.
2
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Phonon-Induced Thermodynamic Properties of Ultra-narrow Wires

88%
Ilić D., Šetrajčić J., Jaćimovski S.
Acta Physica Polonica A
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2018
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vol. 133
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issue 1
57-62
EN
In this paper, we investigated the influence of size effect on thermodynamic properties of ultra-narrow wires with a simple cubic lattice, by means of two-time dependent Green functions method, adjusted to confined crystalline structures. Poles of Green functions, which defining phonon spectra, are found by solving the secular equation. For different boundary parameters, this problem is presented graphically. The temperature behavior of ultra-narrow wire thermal capacitance is compared to that of bulk structures. It turned out that in low-temperature region thermal capacitance of the ultra-narrow wire is notably lower than in the corresponding bulk sample. How this fact reflects the thermal, conducting and superconducting properties of materials, is discussed in the conclusion.
3
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Determination of the effective thermal conductivity of solid fuels by the laser flash method

75%
Kosowska-Golachowska M., Gajewski W., Musiał T.
Archives of Thermodynamics
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2014
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issue 3
4
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Simplified isoperibol calorimetry for thermal testing of dielectric and conducting materials

75%
Moroń L., Żyłka P.
Archives of Electrical Engineering
|
2011
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vol. 60
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issue 1
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