Metal-insulator transitions and nanoscale phase separation in various underdoped cuprates
We demonstrate that the unconventional electron-phonon interactions, charge inhomogeneity and charge ordering in underdoped cuprates play an important role in metal-insulator transitions and nanoscale phase separation. In so doing, we argue that charge carriers (i.e. hole polarons) in these systems...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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L.N. Gumilyov Eurasian National University
2021-11-01
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| Series: | Eurasian Journal of Physics and Functional Materials |
| Subjects: | |
| Online Access: | https://www.ephys.kz/jour/article/view/89 |
| Summary: | We demonstrate that the unconventional electron-phonon interactions, charge inhomogeneity and charge ordering in underdoped cuprates play an important role in metal-insulator transitions and nanoscale phase separation. In so doing, we argue that charge carriers (i.e. hole polarons) in these systems segregate into insulating (carrier-poor) and metallic/superconducting (carrier-rich) regions as a result of their specific ordering. We show that the metal-insulator transitions, nanoscale phase separation and coexisting insulating and metallic/superconducting phases are manifested in the unusual temperature dependences of the magnetic susceptibility and resistivity and in the suppression of superconductivity in various underdoped cuprates. |
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| ISSN: | 2522-9869 2616-8537 |