中文
相关论文

相关论文: Database, Features, and Machine Learning Model to …

200 篇论文

Motivated by the direct observation of electronic phase separation in first-order Mott transitions, we model the interface between the thermodynamically coexisting metal and Mott insulator. We show how to model the required slab geometry…

强关联电子 · 物理学 2017-05-24 Juho Lee , Chuck-Hou Yee

While $\sim$30% of materials are reported to be topological, topological insulators are rare. Magnetic topological insulators (MTI) are even harder to find. Identifying crystallographic features that can host the coexistence of a…

The metal-insulator transition (MIT) in correlated oxide systems opens up a new paradigm to trigger the abruption in multiple physical functionalities, enabling the possibility in unlocking exotic quantum states beyond conventional phase…

强关联电子 · 物理学 2025-10-23 Xiaohui Yao , Jiahui Ji , Xuanchi Zhou

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…

无序系统与神经网络 · 物理学 2015-06-24 S. Das Sarma , E. H. Hwang

It is now possible to study experimentally the combined effect of disorder and interactions in cold atom physics. Motivated by these developments we investigate the dynamics around the metal-insulator transition (MIT) in a one-dimensional…

量子气体 · 物理学 2012-03-22 Masaki Tezuka , Antonio M. Garcia-Garcia

The transition voltage of an abrupt metal-insulator transition (MIT), observed by applying an electric field to two-terminal devices fabricated on a Mott insulator VO_2 film, decreases with increasing temperature up to 334K. The abrupt…

强关联电子 · 物理学 2007-05-23 Hyun-Tak Kim , B. G. Chae , D. H. Youn , S. L. Maeng , K. Y. Kang

We report the observation of a metal-insulator transition (MIT) in a two- dimensional electron gas (2DEG) in a Si/SiGe heterostructure at zero magnetic field. On going through the MIT we observe the corresponding evolution of the magnetic…

介观与纳米尺度物理 · 物理学 2009-11-10 E. B. Olshanetsky , V. Renard , Z. D. Kvon , J. C. Portal , N. J. Woods , J. Zhang , J. J Harris

Nine of the known vanadium oxides, VO$_{2-1/n}$ (n - a positive or negative integer) with n=2 - 6, 8, 9, $\infty$ and -6, undergo metal-insulator transitions accompanied by structural transitions, at various temperatures T$_{MIT}$…

强关联电子 · 物理学 2015-12-09 B. Fisher , J. Genossar , G. M. Reisner

Interaction-driven metal-insulator transitions or Mott transitions are widely observed in condensed-matter systems. In multi-orbital systems, many-body physics is richer in which an orbital-selective metal-insulator transition is an…

强关联电子 · 物理学 2018-11-09 Hanghui Chen

We thoroughly analyze the divergences of the irreducible vertex functions occurring in the charge channel of the half-filled Hubbard model in close proximity to the Mott metal-insulator transition (MIT). In particular, by systematically…

强关联电子 · 物理学 2023-11-21 Mathias Pelz , Severino Adler , Matthias Reitner , Alessandro Toschi

The correlation-driven metal-insulator (Mott) transition at a solid surface is studied within the Hubbard model for a semi-infinite lattice by means of the dynamical mean-field theory. The transition takes place at a unique critical…

强关联电子 · 物理学 2009-10-31 M. Potthoff , W. Nolting

Turning a pristine Mott insulator into a correlated metal by chemical doping is a common procedure in strongly correlated materials physics, e.g. underlying the phenomenology of high-$T_c$ cuprates. The ruthenate bilayer compound…

强关联电子 · 物理学 2020-09-29 Frank Lechermann , Qiang Han , Andrew J. Millis

We studied several aspects of the Mott metal-insulator transition in the disordered case. The model on which we based our analysis is the disordered Hubbard model, which is the simplest model capable of capturing the Mott metal-insulator…

Motivated by recent experimental studies that have found signatures of a correlated insulator phase and tuning superconductivity in twisted bilayer graphene, we study the temperature-dependent conductivity, the spin correlation and the…

强关联电子 · 物理学 2020-04-22 Wanying Chen , Yonghuan Chu , Tongyun Huang , Tianxing Ma

We present the metal - insulator transition study of a quantum site percolation model on simple cubic lattice. Transfer matrix method is used to calculate transport properties - Landauer conductance - for the binary distribution of…

强关联电子 · 物理学 2009-11-13 Igor Travenec

In contrast to the Hubbard model, the extended Hubbard model, which additionally accounts for non-local interactions, lacks systemic studies of thermodynamic properties especially across the metal-insulator transition. Using a variational…

强关联电子 · 物理学 2019-06-19 M. Schüler , E. G. C. P. van Loon , M. I. Katsnelson , T. O. Wehling

We present the carrier transport properties in the vicinity of a doping-driven Mott transition observed at a field-effect transistor (FET) channel using a single crystal of the typical two-dimensional organic Mott insulator…

强关联电子 · 物理学 2017-01-13 Yoshiaki Sato , Yoshitaka Kawasugi , Masayuki Suda , Hiroshi M. Yamamoto , Reizo Kato

We consider the dimer Hubbard model within Dynamical Mean Field Theory to study the interplay and competition between Mott and Peierls physics. We describe the various metal-insulator transition lines of the phase diagram and the break down…

强关联电子 · 物理学 2018-01-17 O. Nájera , M. Civelli , V. Dobrosavljević , M. J. Rozenberg

Combining density functional theory (DFT) and embedded dynamical mean-field theory (DMFT) methods, we study the metal-insulator transition in $R_2$Ir$_2$O$_7$ ($R$=Y, Eu, Sm, Nd, Pr, and Bi) and the topological nature of the insulating…

强关联电子 · 物理学 2017-01-18 Hongbin Zhang , Kristjan Haule , David Vanderbilt

In this work, we study Metal-Insulator transition in a holographic model containing an interaction between the order parameter and charge-carrier density. It turns out that the impurity density of this model can drive the phase transition…

高能物理 - 理论 · 物理学 2023-07-05 Yunseok Seo , Youngjun Ahn , Keun-Young Kim , Sang-Jin Sin , Kyung Kiu Kim