Magnetic quantum oscillations in the charge-density-wave state of the organic metals α-(BEDT-TTF)₂MHg(SCN)₄ with M = K and Tl
The low-temperature charge-density-wave (CDW) state in the layered organic metals α-(BEDT-TTF)₂MHg(SCN)₄
 has been studied by means of the Shubnikov–de Haas and de Haas–van Alphen effects. In addition to the dominant
 α-frequency, which is also observed in the normal state, both the...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2014 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2014
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| Zitieren: | Magnetic quantum oscillations in the charge-density-wave state of the organic metals α-(BEDT-TTF)₂MHg(SCN)₄ with M = K and Tl / M.V. Kartsovnik, V.N. Zverev, D. Andres, W. Biberacher, T. Helm, P.D. Grigoriev, R. Ramazashvili, N.D. Kushch, H. Müller // Физика низких температур. — 2014. — Т. 40, № 4. — С. 484-491. — Бібліогр.: 65 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862657550638383104 |
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| author | Kartsovnik, M.V. Zverev, V.N. Andres, D. Biberacher, W. Helm, T. Grigoriev, P.D. Ramazashvili, R. Kushch, N.D. Müller, H. |
| author_facet | Kartsovnik, M.V. Zverev, V.N. Andres, D. Biberacher, W. Helm, T. Grigoriev, P.D. Ramazashvili, R. Kushch, N.D. Müller, H. |
| citation_txt | Magnetic quantum oscillations in the charge-density-wave state of the organic metals α-(BEDT-TTF)₂MHg(SCN)₄ with M = K and Tl / M.V. Kartsovnik, V.N. Zverev, D. Andres, W. Biberacher, T. Helm, P.D. Grigoriev, R. Ramazashvili, N.D. Kushch, H. Müller // Физика низких температур. — 2014. — Т. 40, № 4. — С. 484-491. — Бібліогр.: 65 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | The low-temperature charge-density-wave (CDW) state in the layered organic metals α-(BEDT-TTF)₂MHg(SCN)₄
has been studied by means of the Shubnikov–de Haas and de Haas–van Alphen effects. In addition to the dominant
α-frequency, which is also observed in the normal state, both the magnetoresistance and magnetic torque possess a
slowly oscillating component. These slow oscillations provide a firm evidence for the CDW-induced reconstruction
of the original cylindrical Fermi surface. The α-oscillations of the interlayer magnetoresistance exhibit an anomalous
phase inversion in the CDW state, whereas the de Haas–van Alphen signal maintains the normal phase. We argue
that the anomaly may be attributed to the magnetic-breakdown origin of the α-oscillations in the CDW state.
A theoretical model illustrating the possibility of a phase inversion in the oscillating interlayer conductivity in the
presence of a spatially fluctuating magnetic breakdown gap is proposed.
|
| first_indexed | 2025-12-02T06:44:03Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-119453 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-02T06:44:03Z |
| publishDate | 2014 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Kartsovnik, M.V. Zverev, V.N. Andres, D. Biberacher, W. Helm, T. Grigoriev, P.D. Ramazashvili, R. Kushch, N.D. Müller, H. 2017-06-07T03:51:22Z 2017-06-07T03:51:22Z 2014 Magnetic quantum oscillations in the charge-density-wave state of the organic metals α-(BEDT-TTF)₂MHg(SCN)₄ with M = K and Tl / M.V. Kartsovnik, V.N. Zverev, D. Andres, W. Biberacher, T. Helm, P.D. Grigoriev, R. Ramazashvili, N.D. Kushch, H. Müller // Физика низких температур. — 2014. — Т. 40, № 4. — С. 484-491. — Бібліогр.: 65 назв. — англ. 0132-6414 PACS 72.15.Gd, 74.70.Kn, 71.45.Lr https://nasplib.isofts.kiev.ua/handle/123456789/119453 The low-temperature charge-density-wave (CDW) state in the layered organic metals α-(BEDT-TTF)₂MHg(SCN)₄
 has been studied by means of the Shubnikov–de Haas and de Haas–van Alphen effects. In addition to the dominant
 α-frequency, which is also observed in the normal state, both the magnetoresistance and magnetic torque possess a
 slowly oscillating component. These slow oscillations provide a firm evidence for the CDW-induced reconstruction
 of the original cylindrical Fermi surface. The α-oscillations of the interlayer magnetoresistance exhibit an anomalous
 phase inversion in the CDW state, whereas the de Haas–van Alphen signal maintains the normal phase. We argue
 that the anomaly may be attributed to the magnetic-breakdown origin of the α-oscillations in the CDW state.
 A theoretical model illustrating the possibility of a phase inversion in the oscillating interlayer conductivity in the
 presence of a spatially fluctuating magnetic breakdown gap is proposed. This work has been supported by the German Research
 Foundation grant KA 1652/4-1, by the Russian Foundation
 for Basic Research grants Nos. 12-02-00312 and 13-02-
 00178, and by SIMTECH Program grant 246937. The experiments
 in fields above 15 T were supported by the
 LNCMI-CNRS, member of the European Magnetic Field
 Laboratory (EMFL). The visit of P.D.G. to the LPT Toulouse
 was supported by l’Agence Nationale de la Recherche
 under the program ANR-11-IDEX-0002-02, reference
 ANR-10-LABX-0037-NEXT. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Магнитоквантовые осцилляции Magnetic quantum oscillations in the charge-density-wave state of the organic metals α-(BEDT-TTF)₂MHg(SCN)₄ with M = K and Tl Article published earlier |
| spellingShingle | Magnetic quantum oscillations in the charge-density-wave state of the organic metals α-(BEDT-TTF)₂MHg(SCN)₄ with M = K and Tl Kartsovnik, M.V. Zverev, V.N. Andres, D. Biberacher, W. Helm, T. Grigoriev, P.D. Ramazashvili, R. Kushch, N.D. Müller, H. Магнитоквантовые осцилляции |
| title | Magnetic quantum oscillations in the charge-density-wave state of the organic metals α-(BEDT-TTF)₂MHg(SCN)₄ with M = K and Tl |
| title_full | Magnetic quantum oscillations in the charge-density-wave state of the organic metals α-(BEDT-TTF)₂MHg(SCN)₄ with M = K and Tl |
| title_fullStr | Magnetic quantum oscillations in the charge-density-wave state of the organic metals α-(BEDT-TTF)₂MHg(SCN)₄ with M = K and Tl |
| title_full_unstemmed | Magnetic quantum oscillations in the charge-density-wave state of the organic metals α-(BEDT-TTF)₂MHg(SCN)₄ with M = K and Tl |
| title_short | Magnetic quantum oscillations in the charge-density-wave state of the organic metals α-(BEDT-TTF)₂MHg(SCN)₄ with M = K and Tl |
| title_sort | magnetic quantum oscillations in the charge-density-wave state of the organic metals α-(bedt-ttf)₂mhg(scn)₄ with m = k and tl |
| topic | Магнитоквантовые осцилляции |
| topic_facet | Магнитоквантовые осцилляции |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/119453 |
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