Tuning bad metal and non-Fermi liquid behavior in a Mott material: Rare-earth nickelate thin films
| Author(s) | Mikheev, Evgeny | |
| Author(s) | Hauser, Adam J. | |
| Author(s) | Himmetoglu, Burak | |
| Author(s) | Moreno, Nelson E. | |
| Author(s) | Janotti, Anderson | |
| Author(s) | Van de Walle, Chris G. | |
| Author(s) | Stemmer, Susanne | |
| Ordered Author | Evgeny Mikheev, Adam J. Hauser, Burak Himmetoglu, Nelson E. Moreno, Anderson Janotti, Chris G. Van de Walle, Susanne Stemmer | |
| UD Author | Janotti, Anderson | en_US |
| Date Accessioned | 2016-06-22T19:34:20Z | |
| Date Available | 2016-06-22T19:34:20Z | |
| Copyright Date | Copyright © 2015 The Authors | en_US |
| Publication Date | 2015-11-06 | |
| Description | Publisher's PDF | en_US |
| Abstract | Resistances that exceed the Mott-Ioffe-Regel limit (known as bad metal behavior) and non-Fermi liquid behavior are ubiquitous features of the normal state of many strongly correlated materials. We establish the conditions that lead to bad metal and non-Fermi liquid phases in NdNiO3, which exhibits a prototype bandwidth-controlled metalinsulator transition. We show that resistance saturation is determined by the magnitude of Ni eg orbital splitting, which can be tuned by strain in epitaxial films, causing the appearance of bad metal behavior under certain conditions. The results shed light on the nature of a crossover to a non-Fermi liquid metal phase and provide a predictive criterion for Anderson localization. They elucidate a seemingly complex phase behavior as a function of film strain and confinement and provide guidelines for orbital engineering and novel devices. | en_US |
| Department | University of Delaware. Department of Materials Science and Engineering. | en_US |
| Citation | E. Mikheev, A. J. Hauser, B. Himmetoglu, N. E. Moreno, A. Janotti, C. G. Van de Walle, S. Stemmer, Tuning bad metal and non-Fermi liquid behavior in a Mott material: Rare-earth nickelate thin films. Sci. Adv. 1, e1500797 (2015). | en_US |
| DOI | 10.1126/sciadv.1500797 | en_US |
| ISSN | 2375-2548 | en_US |
| URL | http://udspace.udel.edu/handle/19716/17810 | |
| Language | en_US | en_US |
| Publisher | American Association for the Advancement of Science (AAAS) | en_US |
| dc.rights | CC BY-NC | en_US |
| dc.source | Science Advances | en_US |
| dc.source.uri | Science Advances | en_US |
| Title | Tuning bad metal and non-Fermi liquid behavior in a Mott material: Rare-earth nickelate thin films | en_US |
| Type | Article | en_US |
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