Entropy per particle spikes in the transition metal dichalcogenides
We derive a general expression for the entropy per particle as a function of chemical potential, temperature and gap magnitude for the single layer transition metal dichalcogenides. The electronic excitations in these mate-rials can be approximately regarded as two species of the massive or gapped f...
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| Published in: | Физика низких температур |
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| Date: | 2018 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2018
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/176167 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Entropy per particle spikes in the transition metal dichalcogenides / V.O. Shubnyi, V.P. Gusynin, S.G. Sharapov, A.A. Varlamov // Физика низких температур. — 2018. — Т. 44, № 6. — С. 721-726. — Бібліогр.: 34 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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Shubnyi, V.O. Gusynin, V.P. Sharapov, S.G. Varlamov, A.A. 2021-02-03T19:42:38Z 2021-02-03T19:42:38Z 2018 Entropy per particle spikes in the transition metal dichalcogenides / V.O. Shubnyi, V.P. Gusynin, S.G. Sharapov, A.A. Varlamov // Физика низких температур. — 2018. — Т. 44, № 6. — С. 721-726. — Бібліогр.: 34 назв. — англ. 0132-6414 PACS: 73.43.Cd, 68.60.Dv,65.40.gd https://nasplib.isofts.kiev.ua/handle/123456789/176167 We derive a general expression for the entropy per particle as a function of chemical potential, temperature and gap magnitude for the single layer transition metal dichalcogenides. The electronic excitations in these mate-rials can be approximately regarded as two species of the massive or gapped fermions. Inside the smaller gap there is a region with zero density of states where the dependence of the entropy per particle on the chemical potential exhibits a huge dip-and-peak structure. The edge of the larger gap is accompanied by the discontinuity of the density of states that results in the peak in the dependence of the entropy per particle on the chemical potential. The specificity of the transition metal dichalcogenides makes possible the observation of these features at rather high temperatures order of 100 K. The influence of the uniaxial strain on the entropy per particle is discussed. We thank A.O. Slobodeniuk for illuminating discussion. We acknowledge the support of EC for the RISE Project CoExAN GA644076. V.P.G. and S.G.Sh. acknowledge a partial support from the Program of Fundamental Research of the Physics and Astronomy Division of the NAS of Ukraine No. 0117U00240 en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Специальный выпуск К 90-летию со дня рождения A.A. Абрикосова Entropy per particle spikes in the transition metal dichalcogenides Article published earlier |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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| title |
Entropy per particle spikes in the transition metal dichalcogenides |
| spellingShingle |
Entropy per particle spikes in the transition metal dichalcogenides Shubnyi, V.O. Gusynin, V.P. Sharapov, S.G. Varlamov, A.A. Специальный выпуск К 90-летию со дня рождения A.A. Абрикосова |
| title_short |
Entropy per particle spikes in the transition metal dichalcogenides |
| title_full |
Entropy per particle spikes in the transition metal dichalcogenides |
| title_fullStr |
Entropy per particle spikes in the transition metal dichalcogenides |
| title_full_unstemmed |
Entropy per particle spikes in the transition metal dichalcogenides |
| title_sort |
entropy per particle spikes in the transition metal dichalcogenides |
| author |
Shubnyi, V.O. Gusynin, V.P. Sharapov, S.G. Varlamov, A.A. |
| author_facet |
Shubnyi, V.O. Gusynin, V.P. Sharapov, S.G. Varlamov, A.A. |
| topic |
Специальный выпуск К 90-летию со дня рождения A.A. Абрикосова |
| topic_facet |
Специальный выпуск К 90-летию со дня рождения A.A. Абрикосова |
| publishDate |
2018 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
We derive a general expression for the entropy per particle as a function of chemical potential, temperature and gap magnitude for the single layer transition metal dichalcogenides. The electronic excitations in these mate-rials can be approximately regarded as two species of the massive or gapped fermions. Inside the smaller gap there is a region with zero density of states where the dependence of the entropy per particle on the chemical potential exhibits a huge dip-and-peak structure. The edge of the larger gap is accompanied by the discontinuity of the density of states that results in the peak in the dependence of the entropy per particle on the chemical potential. The specificity of the transition metal dichalcogenides makes possible the observation of these features at rather high temperatures order of 100 K. The influence of the uniaxial strain on the entropy per particle is discussed.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/176167 |
| citation_txt |
Entropy per particle spikes in the transition metal dichalcogenides / V.O. Shubnyi, V.P. Gusynin, S.G. Sharapov, A.A. Varlamov // Физика низких температур. — 2018. — Т. 44, № 6. — С. 721-726. — Бібліогр.: 34 назв. — англ. |
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| first_indexed |
2025-12-01T23:54:29Z |
| last_indexed |
2025-12-01T23:54:29Z |
| _version_ |
1850861128094056449 |