English
Related papers

Related papers: Magnetically driven metal-insulator transition in …

200 papers

In a recent Letter, Kravchenko et al. [cond-mat/9608101] have provided evidence for a metal-insulator transition (MIT) in a two-dimensional electron system (2DES) in Si metal-oxide-semiconductor field-effect transistors (MOSFETs). The…

Strongly Correlated Electrons · Physics 2008-02-03 K. Ismail , J. O. Chu , Dragana Popovic , A. B. Fowler , S. Washburn

On demand current-driven insulator-to-metal transition (IMT) is pivotal for the next generation of energy-efficient and scalable microelectronics. IMT is a key phenomenon observed in various quantum materials, and it is enabled by the…

We have investigated temperature-dependent electronic structures of Na2IrO3 to unravel its insulating nature. Employing the combined scheme of the density-functional theory (DFT) and the dynamical mean-field theory (DMFT), we have shown…

Strongly Correlated Electrons · Physics 2016-05-19 Minjae Kim , Beom Hyun Kim , B. I. Min

Spin correlations in metallic and insulating phases of $V_2O_3$ and its derivatives are investigated using magnetic neutron scattering. Metallic samples have incommensurate spin correlations varying little with hole doping. Paramagnetic…

Strongly Correlated Electrons · Physics 2009-10-28 Wei Bao , C. Broholm , G. Aeppli , P. Dai , J. M. Honig , P. Metcalf

Experimental evidence for the possible universality classes of the metal-insulator transition (MIT) in two dimensions (2D) is discussed. Sufficiently strong disorder, in particular, changes the nature of the transition. Comprehensive…

Strongly Correlated Electrons · Physics 2016-03-22 Dragana Popović

This review first describes the evidence that strongly suggests the existence of the metal-insulator transition (MIT) in a two-dimensional electron system in Si regardless of the amount of disorder. Extensive studies of the charge dynamics…

Strongly Correlated Electrons · Physics 2011-09-22 Dragana Popović

An abrupt Mott metal-insulator transition (MIT) rather than the continuous Hubbard MIT near a critical on-site Coulomb energy U/U_c=1 is observed for the first time in VO_2, a strongly correlated material, by inducing holes of about 0.018%…

Strongly Correlated Electrons · Physics 2009-11-10 Hyun-Tak Kim , B. G. Chae , D. H. Youn , S. L. Maeng , K. Y. Kang

We present evidence that the insulator to metal transition in (La,Ca)MnO3 near x~0.2 is driven by the suppression of coherent Jahn-Teller distortions, originating from d type orbital ordering. The orbital ordered state is characterised by…

Materials Science · Physics 2009-11-07 Bas B. Van Aken , Auke Meetsma , Y. Tomioka , Y. Tokura , Thomas T. M. Palstra

Metal-insulator transitions involve a mix of charge, spin, and structural degrees of freedom, and when strongly-correlated, can underlay the emergence of exotic quantum states. Mott insulators induced by the opening of a Coulomb gap are an…

Strongly Correlated Electrons · Physics 2021-05-14 Yejun Feng , Yishu Wang , D. M. Silevitch , S. E. Cooper , D. Mandrus , Patrick A. Lee , T. F. Rosenbaum

Transition metal oxides with 4d or 5d metals are of great interest due to the competing interactions, of the Coulomb repulsion and the itineracy of the d-electrons, opening a possibility of building new quantum ground states. Particularly…

Strongly Correlated Electrons · Physics 2016-10-19 Katharina Rolfs , Ekaterina Pomjakushina , Denis Sheptyakov , Kazimierz Conder

The ability to tune magnetic orders, such as magnetic anisotropy and topological spin texture, is desired in order to achieve high-performance spintronic devices. A recent strategy has been to employ interfacial engineering techniques, such…

The electrodynamics near the metal-to-insulator transitions (MIT) induced, in V3O5 single crystals, by both temperature (T) and pressure (P) has been studied by infrared spectroscopy. The T- and P-dependence of the optical conductivity may…

Strongly Correlated Electrons · Physics 2009-11-13 L. Baldassarre , A. Perucchi , E. Arcangeletti , D. Nicoletti , D. Di Castro , P. Postorino , V. A. Sidorov , S. Lupi

Metal-to-insulator transitions (MITs) are a dramatic manifestation of strong electron correlations in solids1. The insulating phase can often be suppressed by quantum tuning, i.e. varying a nonthermal parameter such as chemical composi-…

The metal-insulator transition (MIT) is a fundamental phenomenon in condensed matter physics and a hallmark of strong electronic correlations. Hydrogen-based systems offer a simple yet powerful model for investigating the MIT, as their…

Strongly Correlated Electrons · Physics 2025-05-26 Juan Felipe Huan Lew-Yee , Mario Piris

The underlying mechanism of the metal-to-insulator transition (MIT) in BaVS$_3$ is investigated, using dynamical mean-field theory in combination with density functional theory. It is shown that correlation effects are responsible for a…

Strongly Correlated Electrons · Physics 2009-11-10 Frank Lechermann , Silke Biermann , Antoine Georges

Metal-insulator transition (MIT) materials are a useful platform for emerging microelectronic, optoelectronic, and neuromorphic devices, but their discovery is hindered by the high computational cost of electronic structure modeling, the…

The pressure-induced insulator to metal transition (IMT) of layered magnetic nickel phosphorous tri-sulfide NiPS3 was studied in-situ under quasi-uniaxial conditions by means of electrical resistance (R) and X-ray diffraction (XRD)…

Strongly Correlated Electrons · Physics 2021-11-23 Takahiro Matsuoka , Amanda Haglund , Rui Xue , Jesse S. Smith , Maik Lang , Antonio M. dos Santos , David Mandrus

Transition metal oxides, in particular, 3d or 4d perovskites have provided diverse emergent physics that originates from the coupling of various degrees of freedom such as spin, lattice, charge, orbital, and also disorder. 5d perovskites…

Strongly Correlated Electrons · Physics 2016-04-19 Abhijit Biswas , Ki-Seok Kim , Yoon Hee Jeong

Results from transport measurements in individual $W_{x}V_{1-x}O_{2}$ nanowires with varying extents of $W$ doping are presented. An abrupt thermally driven metal-insulator transition (MIT) is observed in these wires and the transition…

Strongly Correlated Electrons · Physics 2015-05-20 Tai-Lung Wu , Luisa Whittaker , Sarbajit Banerjee , G. Sambandamurthy

We investigated the size dependence of the metal-insulator transition (MIT) in Cr-doped V2O3 nanocrystals by photoemission spectroscopy using complementary probing depths, together with magnetic susceptibility measurements. Photoemission…

‹ Prev 1 3 4 5 6 7 10 Next ›