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 magnetoresistanc...
Saved in:
| Published in: | Физика низких температур |
|---|---|
| Date: | 2014 |
| Main Authors: | , , , , , , , , |
| Format: | Article |
| Language: | English |
| Published: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2014
|
| Subjects: | |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/119453 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | 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. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
nasplib_isofts_kiev_ua-123456789-119453 |
|---|---|
| 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 |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| 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 |
| 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_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_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_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 |
| 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. |
| topic |
Магнитоквантовые осцилляции |
| topic_facet |
Магнитоквантовые осцилляции |
| publishDate |
2014 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| 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.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/119453 |
| 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. |
| work_keys_str_mv |
AT kartsovnikmv magneticquantumoscillationsinthechargedensitywavestateoftheorganicmetalsαbedtttf2mhgscn4withmkandtl AT zverevvn magneticquantumoscillationsinthechargedensitywavestateoftheorganicmetalsαbedtttf2mhgscn4withmkandtl AT andresd magneticquantumoscillationsinthechargedensitywavestateoftheorganicmetalsαbedtttf2mhgscn4withmkandtl AT biberacherw magneticquantumoscillationsinthechargedensitywavestateoftheorganicmetalsαbedtttf2mhgscn4withmkandtl AT helmt magneticquantumoscillationsinthechargedensitywavestateoftheorganicmetalsαbedtttf2mhgscn4withmkandtl AT grigorievpd magneticquantumoscillationsinthechargedensitywavestateoftheorganicmetalsαbedtttf2mhgscn4withmkandtl AT ramazashvilir magneticquantumoscillationsinthechargedensitywavestateoftheorganicmetalsαbedtttf2mhgscn4withmkandtl AT kushchnd magneticquantumoscillationsinthechargedensitywavestateoftheorganicmetalsαbedtttf2mhgscn4withmkandtl AT mullerh magneticquantumoscillationsinthechargedensitywavestateoftheorganicmetalsαbedtttf2mhgscn4withmkandtl |
| first_indexed |
2025-12-02T06:44:03Z |
| last_indexed |
2025-12-02T06:44:03Z |
| _version_ |
1850861784874876928 |