Results 1 to 10 of about 11,906 (259)

Thermal Conductivity of VO₂ Nanowires at Metal-Insulator Transition Temperature. [PDF]

Nanomaterials (Basel), 2021
Vanadium dioxide (VO2) nanowires endowed with a dramatic metal−insulator transition have attracted enormous attention. Here, the thermal conductance of VO2 nanowires with different sizes, measured using the thermal bridge method, is reported.
Li D, Wang Q, Xu X.
europepmc   +2 more sources

A continuous metal-insulator transition driven by spin correlations. [PDF]

Nat Commun, 2021
The Mott transition is a celebrated example of a metal-insulator transition driven by electron correlations. Here, using magnetoresistance measurements, the authors demonstrate the presence of a spin-driven metal-insulator transition, where the ...
Feng Y, Wang Y, Silevitch DM, Cooper SE, Mandrus D, Lee PA, Rosenbaum TF.   +6 more
europepmc   +2 more sources

Topological metal-insulator transition within the ferromagnetic state. [PDF]

Nat Commun
A major challenge in condensed matter physics is integrating topological phenomena with correlated electron physics to leverage both types of states for next-generation quantum devices.
Forslund OK, Ong CS, Hirschmann MM, Gauthier N, Uchiyama H, Tzschaschel C, Mazzone DG, Sibille R, Dos Santos AM, Horio M, Nocerino E, Matsubara N, Mukkattukavil DJ, Papadopoulos K, Kamazawa K, Ikeuchi K, Takagi H, Isobe M, Sugiyama J, Chang J, Sassa Y, Eriksson O, Månsson M.   +22 more
europepmc   +2 more sources

Universal Quantum Criticality in the Metal-Insulator Transition of Two-Dimensional Interacting Dirac Electrons

Physical Review X, 2016
The metal-insulator transition has been a subject of intense research since Mott first proposed that the metallic behavior of interacting electrons could turn to an insulating one as electron correlations increase.
Yuichi Ōtsuka, Seiji Yunoki, Sandro Sorella   +2 more
exaly   +2 more sources

Metal-Insulator Transition [PDF]

Reviews of Modern Physics, 1985
A general survey of the idea of the metal-nonmetal transition is given with particular emphasis to the following points: (a) is the transition of first order; (b) can one observe the transition; and (c) how is the transition affected when it occurs in ionic lattices or polar liquids.
Bernhard Kramer, Gerd Bergmann, Yvan Bruynseraede   +2 more
  +6 more sources

Approximating metal–insulator transitions [PDF]

International Journal of Modern Physics B, 2015
We consider quantum wave propagation in one-dimensional quasiperiodic lattices. We propose an iterative construction of quasiperiodic potentials from sequences of potentials with increasing spatial period. At each finite iteration step, the eigenstates reflect the properties of the limiting quasiperiodic potential properties up to a controlled maximum
Danieli, Carlo, Rayanov, Kristian, Pavlov, Boris, Martin, Gaven, Flach, Sergej   +4 more
openaire   +4 more sources

Room-temperature-superconducting T c driven by electron correlation

Scientific Reports, 2021
Room-temperature-superconducting T c measured by high pressure in hydrides can be theoretically explained by a Brinkman–Rice (BR)–Bardeen–Cooper–Schrieffer (BCS) T c combining both the generalized BCS T c and the diverging effective mass, m*/m = 1/(1 ...
Hyun-Tak Kim
doaj   +1 more source

Insulator-to-metal transition in ultrathin rutile VO2/TiO2(001)

npj Quantum Materials, 2022
An insulator-to-metal transition (IMT) is an emergent characteristic of quantum materials. When the IMT occurs in materials with interacting electronic and lattice degrees of freedom, it is often difficult to determine if the energy gap in the insulating
D. J. Lahneman, Tetiana Slusar, D. B. Beringer, Haoyue Jiang, Chang-Yong Kim, Hyun-Tak Kim, M. M. Qazilbash   +6 more
doaj   +1 more source

Dephasing and the metal-insulator transition [PDF]

Physical Review B, 2001
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 phase coherence length, we show that by changing the phase coherence length or the localization length, it is ...
Shi, Junren, Xie, X. C.
openaire   +2 more sources

Magnetopolarizability at the Metal-Insulator Transition [PDF]

Physical Review Letters, 1995
We have studied the ac response of a series of disordered YxSi1−x insulating samples in the vicinity of the metal-insulator transition. Far from the transition, the ac response is universal in frequency units scaled by a characteristic frequency, ωc≈g(ξc)C(ξc) governed by the critical conductance g(ξc) at the percolation threshold.
Specht, Michael, Lévy, Laurent P., Ladieu, F., Sanquer, M.   +3 more
openaire   +2 more sources