Zobrazeno 1 - 10
of 282
pro vyhledávání: '"A. I. Krivchikov"'
Publikováno v:
Journal of Physics Communications, Vol 8, Iss 1, p 015001 (2024)
The temperature dependencies of the thermal conductivity coefficient, κ (T), in 1-fluoroadamantane were investigated for two different orientationally-disordered states. In the first one, κ (T) exhibits a crystalline character with a typical maximu
Externí odkaz:
https://doaj.org/article/2d85795acec242d3b0bbe3649759387e
Autor:
Daria Szewczyk, Jonathan F. Gebbia, Andrzej Jeżowski, Alexander I. Krivchikov, Tatiana Guidi, Claudio Cazorla, Josep-Lluís Tamarit
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Abstract Disorder–disorder phase transitions are rare in nature. Here, we present a comprehensive low-temperature experimental and theoretical study of the heat capacity and vibrational density of states of 1-fluoro-adamantane (C10H15F), an intrigu
Externí odkaz:
https://doaj.org/article/2b484f4e0964463881dd483afef2485c
Publikováno v:
Condensed Matter Physics, Vol 26, Iss 3, p 33602 (2023)
Correlation between thermal expansions β(T) and heat capacity C(T) of atomic and molecular crystals, amorphous materials with a structural disorder, carbon nanomaterials (fullerite C_60, bundles SWCNTs of single-walled carbon nanotubes) was analyzed
Externí odkaz:
https://doaj.org/article/3ef52259460248f4b8a1833bd217e5de
Autor:
A. Jeżowski, M. A. Strzhemechny, A. I. Krivchikov, O. S. Pyshkin, O. O. Romantsova, O. A. Korolyuk, D. I. Zloba, Yu. V. Horbatenko, A. Filatova
Publikováno v:
AIP Advances, Vol 9, Iss 1, Pp 015121-015121-7 (2019)
Thermal conductivities of two benzophenone single crystals have been measured at temperatures from 4.7 to 270 K. The experimental data for both are consistent for temperatures above 15 K. The thermal conductivity of benzophenone can be represented as
Externí odkaz:
https://doaj.org/article/9e6bc5c882b54d86af9be333567aecf4
Autor:
Alexander I. Krivchikov, Andrezj Jeżowski, Daria Szewczyk, Oxsana A. Korolyuk, Olesya O. Romantsova, Lubov M. Buravtseva, Claudio Cazorla, Josep Ll. Tamarit
Publikováno v:
The journal of physical chemistry letters. 13(22)
We demonstrate that the heat capacity Boson peak (BP)-like anomaly appearing in fully ordered anharmonic molecular crystals emerges as a result of the strong interactions between propagating (acoustic) and low-energy quasi-localized (optical) phonons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47a1081492f8e8309dd089ce20a71639
https://pubmed.ncbi.nlm.nih.gov/35652901
https://pubmed.ncbi.nlm.nih.gov/35652901
Autor:
Luming Zhang, Tetsuya Nomoto, Satoshi Yamashita, Hiroki Akutsu, Alexander I. Krivchikov, Yasuhiro Nakazawa
Publikováno v:
Low Temperature Physics. 49:539
The construction of a thermal conductivity measurement system designed for tiny molecules-based compounds is reported. We introduce complementary usage of chip-type RuO2 thermometers and E-type thermocouples in the sample part by using thin (ϕ 13μm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0327d9e1edb0087636131347892f861c
https://doi.org/10.1063/10.0017814
https://doi.org/10.1063/10.0017814
Autor:
Daria Szewczyk, Alexander I. Krivchikov, Maksym S. Barabashko, Alexander V. Dolbin, Nikolay A. Vinnikov, Razet Basnukaeva, Grzegorz Chajewski, Andrzej Jeżowski
Publikováno v:
Low Temperature Physics. 49:593
The low-temperature dependence of the heat capacity of acrylonitrile-butadiene-styrene (ABS) polymer and its composite with thermally reduced graphene oxide was studied. The existence of a so-called “boson peak” characteristic of orientational an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51fc8f77ab2824072aaefbe2e7839ad6
https://doi.org/10.1063/10.0017821
https://doi.org/10.1063/10.0017821
Publikováno v:
Low Temperature Physics. 49:548
The increase in thermal conductivity with temperature in the dynamically orientationally disordered phases of cyclic hydrocarbons is explained by the recently proposed thermal activation mechanism of heat transfer. It is shown that high-temperature t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cfe0c352ca7da97bdb35424b952dcbd
https://doi.org/10.1063/10.0017816
https://doi.org/10.1063/10.0017816
Publikováno v:
Low Temperature Physics. 46:111-117
A new approach is used to analyze the experimental data on the temperature dependence of low-temperature thermal conductivity κ(T) of some typical disordered complex crystals: clathrate hydrates (tetrahydrofuran, methane, xenon), Sr8Ga16Ge30 and p-t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c11f0c03a5a24a4f623e0b97fb63fcf
https://doi.org/10.1063/10.0000528
https://doi.org/10.1063/10.0000528