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We report on the electric-field-induced reversible metal-insulator transition (MIT) of the insulating LaAlO3 thin films observed in metal/LaAlO3/Nb-SrTiO3 heterostructures. The switching voltage depends strongly on the thickness of the…

We have studied the electrical field induced conductance transition in thin film of Perylenetetracarboxylic dianhydride sandwiched between two metal electrodes, from an insulating state to conducting state with a high ON-OFF ratio in those…

Other Condensed Matter · Physics 2007-05-23 Ruchi Agrawal , Subhasis Ghosh

It is inferred from bulk-sensitive muon Knight shift measurement for a Bi$_{1.76}$Pb$_{0.35}$Sr$_{1.89}$CuO$_{6+\delta}$ single-layer cuprate that metal-insulator (MI) transition (in the low temperature limit, $T\rightarrow0$) occurs at the…

Strongly Correlated Electrons · Physics 2016-09-13 M. Miyazaki , R. Kadono , M. Hiraishi , A. Koda , K. M. Kojima , Y. Fukunaga , Y. Tanabe , T. Adachi , Y. Koike

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…

Strongly Correlated Electrons · Physics 2007-05-23 Hyun-Tak Kim , B. G. Chae , D. H. Youn , S. L. Maeng , K. Y. Kang

A pressure-induced insulator-to-metal transition (IMT) has recently been discovered in the nodal-line ferrimagnet Mn$_3$Si$_2$Te$_6$. The electronic phase transition is accompanied by anomalies in the magnetic ordering temperature and the…

Strongly Correlated Electrons · Physics 2026-04-02 Varun Venkatasubramanian , Makoto Shimizu , Daniel Guterding , Harald O. Jeschke

Quantum transport in disordered ferromagnetic (III,Mn)V semiconductors is studied theoretically. Mesoscopic wires exhibit an Anderson disorder-induced metal-insulator transition that can be controlled by a weak external magnetic field. This…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Anh Kiet Nguyen , Arne Brataas

A metal-insulator transition was induced by in-plane magnetic fields up to 27 T in homogeneously Sb-doped Si/SiGe superlattice structures. The localisation is not observed for perpendicular magnetic fields. A comparison with…

Mesoscale and Nanoscale Physics · Physics 2014-01-10 G. Brunthaler , T. Dietl , A. Prinz , M. Sawicki , J. Jaroszynski , P. Glod , F. Schaffler , G. Bauer , D. K. Maude , J. C. Portal

We investigate the metal-insulator transition occurring in semiconductors with magnetic impurities when lowering temperature. In contrast to the usually considered percolation transition in the non-uniform medium induced by the localization…

Materials Science · Physics 2015-05-19 E. Z. Meilikhov , R. M. Farzetdinova

All-electrical and programmable manipulations of ferromagnetic bits are highly pursued for the aim of high integration and low energy consumption in modern information technology. Methods based on the spin-orbit torque switching in heavy…

We report on a metal-insulator transition in the LaAlO3-SrTiO3 interface electron system, of which the carrier density is tuned by an electric gate field. Below a critical carrier density n_c ranging from 0.5-1.5 * 10^13/cm^2, LaAlO3-SrTiO3…

Materials Science · Physics 2013-05-29 Y. C. Liao , T. Kopp , C. Richter , A. Rosch , J. Mannhart

We study the interplay of the structural phase transition, flat electronic band dispersion, and metal-to-insulator transition (MIT) in the parent compounds of the Ru-pnictide superconductors by using first-principles calculations. Our…

Materials Science · Physics 2024-01-30 Niraj Aryal , Emil S. Bozin , Weiguo Yin

The surface of a topological insulator hosts a very special form of a quasi-two dimensional metallic system when it is embedded in a topologically trivial medium like the vacuum. The electronic properties of this unusual 2D metal are…

Mesoscale and Nanoscale Physics · Physics 2012-08-13 M. M. Vazifeh , M. Franz

We present transport and thermal data for the quadruple-perovskites MCu3(Ti1-xRux)4O12 where 0 < x < 1. A metal-insulator transition (MIT) occurs for Ru concentrations x~0.75. At the same time, the Cu2+ antiferromagnetic state is destroyed…

Materials Science · Physics 2009-11-10 A. P. Ramirez , G. Lawes , D. Li , M. A. Subramanian

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

Metal-insulator (MI) transitions in correlated electron systems have long been a central and controversial issue in material science. Vanadium dioxide (VO2) exhibits a first-order MI transition at 340 K. For more than half a century, it has…

Strongly Correlated Electrons · Physics 2020-08-26 Yasuhiro H. Matsuda , Daisuke Nakamura , Akihiko Ikeda , Shojiro Takeyama , Yuji Muraoka , Yuki Suga

Metal-insulator transitions (MIT),an intriguing correlated phenomenon induced by the subtle competition of the electrons' repulsive Coulomb interaction and kinetic energy, is of great potential use for electronic applications due to the…

Materials Science · Physics 2021-10-13 Kun Han , Hanyu Wang , Liang Wu , Yu Cao , Dong-Chen Qi , Changjian Li , Zhen Huang , Xiao Li , X. Renshaw Wang

Experimental results on the metal-insulator transition and related phenomena in strongly interacting two-dimensional electron systems are discussed. Special attention is given to recent results for the strongly enhanced spin susceptibility,…

Strongly Correlated Electrons · Physics 2016-11-18 A. A. Shashkin , S. V. Kravchenko

The ground-state magnetic phase diagram (including collinear and spiral states) of the single-band Hubbard model for the face-centered cubic lattice and related metal-insulator transition (MIT) are investigated within the slave-boson…

Strongly Correlated Electrons · Physics 2016-10-26 M. A. Timirgazin , P. A. Igoshev , A. K. Arzhnikov , V. Yu. Irkhin

$^{77}$Se-NMR spectrum and frequency shift measurements in the paramagnetic metal (PM) and antiferromagnetic insulating (AFI) phases are reported for a small single crystal of the organic conductor $\lambda-$(BETS)$_{2}$FeCl$_{4}$ as a…

Strongly Correlated Electrons · Physics 2009-11-13 Guoqing Wu , W. G. Clark , S. E. Brown , J. S. Brooks , A. Kobayashi , H. Kobayashi

We study how the Mott metal-insulator transition (MIT) is influenced when we deal with electrons with different angular momenta. For lithium we found an essential effect when we include $p$-orbitals in the description of the Hilbert space.…

Strongly Correlated Electrons · Physics 2009-11-10 Walter Alsheimer , Beate Paulus
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