- Tytuł:
- Phonon-Induced Thermodynamic Properties of Ultra-narrow Wires
- Autorzy:
-
Ilić, D.
Šetrajčić, J.
Jaćimovski, S. - Powiązania:
- https://bibliotekanauki.pl/articles/1029824.pdf
- Data publikacji:
- 2018-01
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
Phonons
ultra-narrow wire
the Green function
thermodynamics
specific heat - Opis:
- 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.
- Źródło:
-
Acta Physica Polonica A; 2018, 133, 1; 57-62
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł