English
Related papers

Related papers: Hole-driven MIT theory, Mott transition in VO_2, M…

200 papers

We study the Mott transition in Hubbard models with a degenerate band on different 3-dimensional lattices. While for a non-degenerate band only the half-filled system may exhibit a Mott transition, with degeneracy there can be a transition…

Strongly Correlated Electrons · Physics 2009-10-31 Erik Koch , Olle Gunnarsson , Richard M. Martin

Achieving the full understanding and control of the insulator-to-metal transition in Mott materials is key for the next generation of electronics devices, with applications ranging from ultrafast transistors, volatile and non-volatile…

Strongly Correlated Electrons · Physics 2024-10-02 Alessandra Milloch , Michele Fabrizio , Claudio Giannetti

The possibility of the strong electron-electron interaction driven insulating phase from the metallic phase in two-dimensions has been suggested for clean systems without intentional disorder, but its rigorous demonstration is still…

Strongly Correlated Electrons · Physics 2021-01-04 Byoung Hee Moon , Gang Hee Han , Miloš M. Radonjić , Hyunjin Ji , Vladimir Dobrosavljević

Mott insulators can be portrayed as "unsuccessful metals": systems in which a strong Coulomb repulsion prevents charge conduction notwithstanding the metal-like density of conduction electrons. The possibility to unlock such large density…

Strongly Correlated Electrons · Physics 2016-10-24 G. Mazza , A. Amaricci , M. Capone , M. Fabrizio

The paramagnetic phase of the one-band Hubbard model is studied at zero-temperature, within the framework of dynamical mean-field theory, and for general particle-hole asymmetry where a doping-induced Mott transition occurs. Our primary…

Strongly Correlated Electrons · Physics 2016-02-01 David E. Logan , Martin R. Galpin

One of the major puzzles in condensed matter physics has been the observation of a Mott-insulating state away from half-filling. The filling-controlled Mott insulator-metal transition, induced via charge-carrier doping, has been extensively…

Strongly Correlated Electrons · Physics 2021-07-13 S. Hameed , J. Joe , D. M. Gautreau , J. W. Freeland , T. Birol , M. Greven

The isostructural metal-insulator transition in Cr-doped V2O3 is the textbook example of a Mott-Hubbard transition between a paramagnetic metal and a paramagnetic insulator. We review recent theoretical calculations as well as experimental…

Strongly Correlated Electrons · Physics 2013-03-11 P. Hansmann , A. Toschi , G. Sangiovanni , T. Saha-Dasgupta , S. Lupi , M. Marsi , K. Held

VO2 is a strongly correlated material, which undergoes a reversible metal insulator transition (MIT) coupled to a structural phase transition upon heating (T= 67{\deg} C). Since its discovery the nature of the insulating state has long been…

Strongly Correlated Electrons · Physics 2020-01-14 A. D'Elia , S. J. Rezvani , A. Cossaro , M. Stredansky , C. Grazioli , B. W. Li , C. W. Zou , M. Coreno , A. Marcelli

A review is given on the theory of metal-insulator transitions (MIT) in doped semiconductors. We focus in particular on reviewing theories of their anomalous magnetic properties, which emerge from the interplay of spin and charge…

Disordered Systems and Neural Networks · Physics 2023-10-05 S. Kettemann

The metal-insulator transition (MIT) of the Magneli phase V_4O_7 is studied by means of electronic structure calculations using the augmented spherical wave method. The calculations are based on density functional theory and the local…

Condensed Matter · Physics 2009-11-10 U. Schwingenschloegl , V. Eyert , U. Eckern

A heterojunction Mott field effect transistor (FET) is proposed that consists of an epitaxial channel material that exhibits an electron-correlation-induced Mott metal-to-insulator transition. The Mott material is remotely (modulation)…

Materials Science · Physics 2011-10-20 Junwoo Son , Siddharth Rajan , Susanne Stemmer , S. James Allen

The resistivity maximum at a temperature $T=T_{\mathrm{max}}$ is a recurring feature of bandwidth-tuned Mott systems, yet its meaning remains controversial: is it a coherence-incoherence crossover of an electronically homogeneous metal, or…

The theory of hole superconductivity proposes that MgB_2, and the high Tc cuprates, and the 'conventional superconductors', and all other superconductors, are driven by the same physical mechanism, which is not the electron-phonon…

Superconductivity · Physics 2007-05-23 J. E. Hirsch

We investigate the metal-insulator Mott transition in a generalized version of the periodic Anderson model, in which a band of itinerant electrons is hybridrized with a narrow and strongly correlated band. Using dynamical mean-field theory,…

Strongly Correlated Electrons · Physics 2017-07-18 Adriano Amaricci , Luca de' Medici , Massimo Capone

In solids, strong repulsion between electrons can inhibit their movement and result in a "Mott" metal-to-insulator transition (MIT), a fundamental phenomenon whose understanding has remained a challenge for over 50 years. A key issue is how…

We provide a critical perspective on the collection of low-temperature transport phenomena in low-density two-dimensional semiconductor systems often referred to as the 2D metal-insulator transition. We discuss the physical mechanisms…

Disordered Systems and Neural Networks · Physics 2015-06-24 S. Das Sarma , E. H. Hwang

For the immediate vicinity of the metal-insulator transition (MIT), data on the dependence of the resistivity rho on the charge carrier concentration n from an Si MOSFET experiment by Kravchenko et al. and from an AlAs quantum well study by…

Disordered Systems and Neural Networks · Physics 2007-05-23 A. Mobius

Vanadium dioxide(VO$_2$) is a paradigmatic example of a strongly correlated system that undergoes a metal-insulator transition at a structural phase transition. To date, this transition has necessitated significant post-hoc adjustments to…

Strongly Correlated Electrons · Physics 2017-12-20 Huihuo Zheng , Lucas K. Wagner

Deciphering the complicated interplay between collective and separate behaviors lies at the heart of first-order metal-insulator transition (MIT) in correlated electron systems, enabling the rational design of exotic electronic states and…

Strongly Correlated Electrons · Physics 2026-04-29 Xuanchi Zhou , Xiaohui Yao , Wentian Lu , Chunwei Yao , Xiaomei Qiao

We investigate nonmagnetic metal-insulator transition in the 1/5-depleted square lattice Hubbard model at half-filling within the 8-site cellular dynamical mean field theory. We find that a metal-insulator transition without any signatures…

Strongly Correlated Electrons · Physics 2014-08-19 Yuki Yanagi , Kazuo Ueda