dc.contributor.author |
Koley, S.
|
|
dc.contributor.author |
Laad, M. S.
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|
dc.contributor.author |
Vidhyadhiraja, N. S.
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|
dc.contributor.author |
Taraphder, A.
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|
dc.date.accessioned |
2017-02-21T09:35:42Z |
|
dc.date.available |
2017-02-21T09:35:42Z |
|
dc.date.issued |
2014 |
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dc.identifier.citation |
Koley, S; Laad, MS; Vidhyadhiraja, NS; Taraphder, A, Preformed excitons, orbital selectivity, and charge density wave order in 1T-TiSe2. Physical Review B 2014, 90 (11), 115146 http://dx.doi.org/10.1103/PhysRevB.90.115146 |
en_US |
dc.identifier.citation |
Physical Review B |
en_US |
dc.identifier.citation |
90 |
en_US |
dc.identifier.citation |
11 |
en_US |
dc.identifier.issn |
2469-9950 |
|
dc.identifier.uri |
https://libjncir.jncasr.ac.in/xmlui/10572/2581 |
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dc.description |
Restricted Access |
en_US |
dc.description.abstract |
Traditional routes to charge density wave (CDW) in transition-metal dichalcogenides, relying on Fermi surface nesting or Jahn-Teller instabilities, have recently been brought into question. While this calls for exploration of alternative views, a paucity of theoretical guidance sustains lively controversy on the origin of, and interplay between, CDW and superconductive orders in transition-metal dichalcogenides. Here, we explore a preformed excitonic liquid route, heavily supplemented by modern correlated electronic-structure calculations, to an excitonic CDW order in 1T-TiSe2. We show that orbital-selective dynamical localization arising from preformed excitonic liquid correlations is somewhat reminiscent of states proposed for d and f band quantum criticality at the border of magnetism. Excellent quantitative explication of a wide range of spectral and transport responses in both normal and CDW phases provides strong support for our scenario, and suggests that soft excitonic liquid fluctuations mediate superconductivity in a broad class of transition-metal dichalcogenides on the border of CDW. This brings the transition-metal dichalcogenides closer to the bad actors (where the metallic state is clearly not a Fermi liquid) in d and f band systems, where anomalously soft fluctuations of electronic origin are believed to mediate unconventional superconductivity on the border of magnetism. |
en_US |
dc.description.uri |
2469-9969 |
en_US |
dc.description.uri |
http://dx.doi.org/10.1103/PhysRevB.90.115146 |
en_US |
dc.language.iso |
English |
en_US |
dc.publisher |
American Physical Society |
en_US |
dc.rights |
@American Physical Society, 2014 |
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dc.subject |
Condensed Matter Physics |
en_US |
dc.subject |
Superconductivity |
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dc.subject |
Transition |
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dc.subject |
Temperature |
en_US |
dc.subject |
Dimensions |
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dc.subject |
Anomalies |
en_US |
dc.subject |
1T-TaS2 |
en_US |
dc.subject |
State |
en_US |
dc.subject |
TiSe2 |
en_US |
dc.title |
Preformed excitons, orbital selectivity, and charge density wave order in 1T-TiSe2 |
en_US |
dc.type |
Article |
en_US |