On the efficiency of ππ/ππ diboride solid solution in enhancing the thermal stability of πππ΅2 superconductor
Year: 2025
Type: article
Abstract: A comparative analysis of the thermal stability of ππ/π π diboride solid solution and pure πππ΅2 was carried out. The specific heat capacity of these materials below the critical temperature of πππ΅2 , which is an essential characteristic for assessing their thermal stability, was evaluated. Based on the ππ ππππ‘ππ calculations of the phonon density of states for both compounds, it was demonstrated that πππ ππ΅4 is characterized by a higher phonon density of states in the frequency range of 5β7.5 THz compared with πππ΅2 . πππ ππ΅4 was also found to exhibit a higher heat absorbing capacity at low temperatures. The specific heat capacity of πππ ππ΅4 at low temperatures exceeds that of πππ΅2 by 50 %, thus indicating its better thermal stability. The potential of πππ ππ΅4 solid solution for practical application in superconducting wires made of πππ΅2 was outlined.
Authors: A. G. Kiiamov, M. D. Kuznetsov
Institution: Kazan Federal University
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4409273068