scholarly journals Spectral weight suppression near a metal-insulator transition in a double-layer electron-doped iridate

2017 ◽  
Vol 95 (23) ◽  
Author(s):  
Gregory Affeldt ◽  
Tom Hogan ◽  
Christopher L. Smallwood ◽  
Tanmoy Das ◽  
Jonathan D. Denlinger ◽  
...  
Keyword(s):  
Double Layer ◽  
Spectral Weight ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Weight Suppression

Transfer of Spectral Weight and Symmetry across the Metal-Insulator Transition inVO2

2006 ◽  
Vol 97 (11) ◽  
Author(s):  
T. C. Koethe ◽  
Z. Hu ◽  
M. W. Haverkort ◽  
C. Schüßler-Langeheine ◽  
F. Venturini ◽  
...  
Keyword(s):  
Spectral Weight ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator

scholarly journals Magnetotransport and complexity of holographic metal-insulator transitions

2020 ◽  
Vol 2020 (10) ◽  
Author(s):  
Yu-Sen An ◽  
Teng Ji ◽  
Li Li
Keyword(s):  
Magnetic Field ◽  
Spectral Weight ◽  
Insulator Transition ◽  
Disorder Strength ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
High Energies ◽  
Longitudinal Conductivity ◽  
Spatial Dimensions ◽  
Good Probe

Abstract We study the magnetotransport in a minimal holographic setup of a metal- insulator transition in two spatial dimensions. Some generic features are obtained without referring to the non-linear details of the holographic theory. The temperature dependence of resistivity is found to be well scaled with a single parameter T0, which approaches zero at some critical charge density ρc, and increases as a power law T0∼ |ρ − ρc|1/2 both in metallic (ρ > ρc) and insulating (ρ < ρc) regions in the vicinity of the transition. Similar features also happen by changing the disorder strength as well as magnetic field. By requiring a positive definite longitudinal conductivity in the presence of an applied magnetic field restricts the allowed parameter space of theory parameters. We explicitly check the consistency of parameter range for two representative models, and compute the optical conductivities for both metallic and insulating phases, from which a disorder- induced transfer of spectral weight from low to high energies is manifest. We construct the phase diagram in terms of temperature and disorder strength. The complexity during the transition is studied and is found to be not a good probe to the metal-insulator transition.

scholarly journals Tunable metal–insulator transition in double-layer graphene heterostructures

2011 ◽  
Vol 7 (12) ◽  
pp. 958-961 ◽  
Author(s):  
L. A. Ponomarenko ◽  
A. K. Geim ◽  
A. A. Zhukov ◽  
R. Jalil ◽  
S. V. Morozov ◽  
...  
Keyword(s):  
Double Layer ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Layer Graphene

Fermi-surface reconstruction close to a pressure-induced metal-insulator transition

2004 ◽  
Vol 114 ◽  
pp. 277-281 ◽  
Author(s):  
J. Wosnitza ◽  
J. Hagel ◽  
O. Stockert ◽  
C. Pfleiderer ◽  
J. A. Schlueter ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Surface Reconstruction ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Fermi Surface Reconstruction

Crystal growth and metal-insulator transition in two-dimensional layered rare-earth palladates

2018 ◽  
Vol 2 (8) ◽  
Author(s):  
Yoshiko Nanao ◽  
Yoshiharu Krockenberger ◽  
Ai Ikeda ◽  
Yoshitaka Taniyasu ◽  
Michio Naito ◽  
...  
Keyword(s):  
Rare Earth ◽  
Crystal Growth ◽  
Insulator Transition ◽  
Two Dimensional ◽  
Metal Insulator Transition ◽  
Metal Insulator
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