scholarly journals Nonperturbative emergence of the Dirac fermion in a strongly correlated composite Fermi liquid

2017 ◽  
Vol 95 (3) ◽  
Author(s):  
Yibin Yang ◽  
Xi Luo ◽  
Yue Yu
Keyword(s):  
Fermi Liquid ◽  
Dirac Fermion ◽  
Strongly Correlated

scholarly journals Tuning bad metal and non-Fermi liquid behavior in a Mott material: Rare-earth nickelate thin films

2015 ◽  
Vol 1 (10) ◽  
pp. e1500797 ◽  
Author(s):  
Evgeny Mikheev ◽  
Adam J. Hauser ◽  
Burak Himmetoglu ◽  
Nelson E. Moreno ◽  
Anderson Janotti ◽  
...  
Keyword(s):  
Fermi Liquid ◽  
Epitaxial Films ◽  
Strongly Correlated ◽  
Complex Phase ◽  
Strongly Correlated Materials ◽  
Liquid Phases ◽  
Liquid Behavior ◽  
Novel Devices ◽  
Shed Light ◽  
Fermi Liquid Behavior

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 metal-insulator transition. We show that resistance saturation is determined by the magnitude of Ni egorbital 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.

Non fermi liquid behavior in strongly correlated f-electron materials

1994 ◽  
Vol 95 (1-2) ◽  
pp. 225-243 ◽  
Author(s):  
M. B. Maple ◽  
C. L. Seaman ◽  
D. A. Gajewski ◽  
Y. Dalichaouch ◽  
V. B. Barbetta ◽  
...  
Keyword(s):  
Fermi Liquid ◽  
Strongly Correlated ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior
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