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NiS$_2$ has been widely regarded as a model system to study the bandwidth-controlled Mott transition, as enabled by isovalent Se chemical substitution on the S sites. Motivated by advances in electrolyte gating, we theoretically investigate…

Strongly Correlated Electrons · Physics 2023-03-15 Ezra Day-Roberts , Rafael M. Fernandes , Turan Birol

Electrons in correlated insulators are prevented from conducting by Coulomb repulsion between them. When an insulator-to-metal transition is induced in a correlated insulator by doping or heating, the resulting conducting state can be…

The gas-liquid transition is a first-order transition terminating at a finite-temperature critical point with diverging density fluctuations. Mott transition, a metal-insulator transition driven by Coulomb repulsion between electrons, has…

Superconductivity · Physics 2007-05-23 Masatoshi Imada

The metal-insulator transition (MIT) observed in two-dimensional (2D) systems is apparently contradictory to the well known scaling theory of localization. By investigating the conductance of disordered one-dimensional systems with a finite…

Strongly Correlated Electrons · Physics 2009-10-31 Junren Shi , X. C. Xie

The Mott transition is usually considered as resulting from the divergence of the effective mass of the quasiparticle in the Fermi-liquid theory; the dispersion relation around the Fermi level is considered to become flat towards the Mott…

Strongly Correlated Electrons · Physics 2020-10-26 Masanori Kohno

A metal-insulator transition (MIT) in BiFeO$_3$ under pressure was investigated by a method combining Generalized Gradient Corrected Local Density Approximation with Dynamical Mean-Field Theory (GGA+DMFT). Our paramagnetic calculations are…

Strongly Correlated Electrons · Physics 2018-11-01 A. O. Shorikov , A. V. Lukoyanov , V. I. Anisimov , S. Y. Savrasov

For continuous Mott metal-insulator transitions in layered two dimensional systems, we demonstrate the phenomenon of dimensional decoupling: the system behaves as a three-dimensional metal in the Fermi liquid side but as a stack of…

Strongly Correlated Electrons · Physics 2016-09-08 Liujun Zou , T. Senthil

Here we propose and analyze the behavior of a FET--like switching device, the Mott transition field effect transistor, operating on a novel principle, the Mott metal--insulator transition. The device has FET-like characteristics with a low…

Condensed Matter · Physics 2009-10-28 C. Zhou , D. M. Newns , J. A. Misewich , P. C. Pattnaik

A theory of the magnetic field driven (semi-)metal-insulator phase transition is developed for planar systems with a low density of carriers and a linear (i.e., relativistic like) dispersion relation for low energy quasiparticles. The…

Condensed Matter · Physics 2009-11-07 E. V. Gorbar , V. P. Gusynin , V. A. Miransky , I. A. Shovkovy

We study the Mott transition, antiferromagnetism and superconductivity in layered organic conductors using Cellular Dynamical Mean Field Theory for the frustrated Hubbard model. A d-wave superconducting phase appears between an…

Strongly Correlated Electrons · Physics 2009-11-11 B. Kyung , A. -M. S. Tremblay

We propose a mechanism for insulator-to-metal (IM) transitions driven by the mismatch of quantized formal polarization (QFP), a symmetry-protected bulk invariant. For a material with a low-symmetry insulating phase and a high-symmetry phase…

Materials Science · Physics 2026-04-03 Hongsheng Pang , Lixin He

We study theoretically the quantum phase transition from a metal to a Wigner-Mott insulator at fractional commensurate filling on a two-leg ladder. We show that a continuous transition out of a symmetry-preserving Luttinger liquid metal is…

Strongly Correlated Electrons · Physics 2022-12-23 Seth Musser , T. Senthil

One of today's most exciting research frontier and challenge in condensed matter physics is known as Mottronics, whose goal is to incorporate strong correlation effects into the realm of electronics. In fact, taming the Mott…

We study the transition from paramagnetic metal to paramagnetic insulator by finite temperature Quantum Monte-Carlo simulations for the 2D Hubbard model at half-filling. Working at the moderately high temperature T=0.33*t where the spin…

Strongly Correlated Electrons · Physics 2007-05-23 C. Groeber , M. G. Zacher , R. Eder

The interplay between delocalisation and repulsive interactions can cause electronic systems to undergo a Mott transition between a metal and an insulator. Here we use neural network hidden fermion determinantal states (HFDS) to uncover…

Strongly Correlated Electrons · Physics 2024-12-10 Chloé Gauvin-Ndiaye , Joseph Tindall , Javier Robledo Moreno , Antoine Georges

The problem of doping Mott insulators is of fundamental importance and long-standing interest in the study of strongly correlated electron systems. The advent of semiconductor based moir\'e materials opens a new ground for simulating the…

Strongly Correlated Electrons · Physics 2024-01-09 Yang Zhang , Liang Fu

The Mott metal-insulator transition in the two-band Hubbard model in infinite dimensions is studied by using the linearized dynamical mean-field theory. The discontinuity in the chemical potential for the change from hole to electron doping…

Strongly Correlated Electrons · Physics 2009-11-07 Y. Ohashi , Y. Ono

The temperature dependence of the Mott metal-insulator transition (MIT) is studied with a VO_2-based two-terminal device. When a constant voltage is applied to the device, an abrupt current jump is observed with temperature. With increasing…

Strongly Correlated Electrons · Physics 2015-06-25 Bong-Jun Kim , Yong Wook Lee , Byung-Gyu Chae , Sun Jin Yun , Soo-Young Oh , Young-Sik Lim , Hyun-Tak Kim

The electronic properties of paramagnetic V_2O_3 are investigated by the ab-initio computational scheme LDA+DMFT(QMC). This approach merges the local density approximation (LDA) with dynamical mean-field theory (DMFT) and uses numerically…

Strongly Correlated Electrons · Physics 2009-10-31 K. Held , G. Keller , V. Eyert , D. Vollhardt , V. I. Anisimov

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
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