Negative magnetoresistance of the normal state of the doped Mott insulator

1992 ◽  
Vol 45 (1) ◽  
pp. 519-522 ◽  
Author(s):  
L. B. Ioffe ◽  
P. Wiegmann
Keyword(s):  
Normal State ◽  
Mott Insulator ◽  
Negative Magnetoresistance ◽  
Doped Mott Insulator

scholarly journals Information-theoretic measures of superconductivity in a two-dimensional doped Mott insulator

2021 ◽  
Vol 118 (25) ◽  
pp. e2104114118
Author(s):  
Caitlin Walsh ◽  
Maxime Charlebois ◽  
Patrick Sémon ◽  
Giovanni Sordi ◽  
André-Marie S. Tremblay
Keyword(s):  
Normal State ◽  
Superconducting State ◽  
Mean Field Theory ◽  
Mott Insulator ◽  
Two Dimensional ◽  
Local Entropy ◽  
Unconventional Superconductor ◽  
Doped Mott Insulator ◽  
Classical Correlations ◽  
Quantum And Classical Correlations

A key open issue in condensed-matter physics is how quantum and classical correlations emerge in an unconventional superconductor from the underlying normal state. We study this problem in a doped Mott insulator with information-theory tools on the two-dimensional (2D) Hubbard model at finite temperature with cluster dynamical mean-field theory. We find that the local entropy detects the superconducting state and that the difference in the local entropy between the superconducting and normal states follows the same difference in the potential energy. We find that the thermodynamic entropy is suppressed in the superconducting state and monotonically decreases with decreasing doping. The maximum in entropy found in the normal state above the overdoped region of the superconducting dome is obliterated by superconductivity. The total mutual information, which quantifies quantum and classical correlations, is amplified in the superconducting state of the doped Mott insulator for all doping levels and shows a broad peak versus doping, as a result of competing quantum and classical effects.

scholarly journals Two-component electronic phase separation in the doped Mott insulator Y1−xCaxTiO3

2021 ◽  
Vol 104 (4) ◽  
Author(s):  
S. Hameed ◽  
J. Joe ◽  
D. M. Gautreau ◽  
J. W. Freeland ◽  
T. Birol ◽  
...  
Keyword(s):  
Phase Separation ◽  
Mott Insulator ◽  
Electronic Phase Separation ◽  
Electronic Phase ◽  
Two Component ◽  
Doped Mott Insulator

scholarly journals Low-energy electrodynamics of Dirac semimetal phases in the doped Mott insulator Sr2IrO4

2021 ◽  
Vol 103 (4) ◽  
Author(s):  
Sun-Woo Kim ◽  
Myungjun Kang ◽  
Sangmo Cheon
Keyword(s):  
Mott Insulator ◽  
Low Energy ◽  
Dirac Semimetal ◽  
Doped Mott Insulator

scholarly journals Time-reversal symmetry breaking superconducting ground state in the doped Mott insulator on the honeycomb lattice

2013 ◽  
Vol 88 (15) ◽  
Author(s):  
Zheng-Cheng Gu ◽  
Hong-Chen Jiang ◽  
D. N. Sheng ◽  
Hong Yao ◽  
Leon Balents ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Ground State ◽  
Time Reversal ◽  
Mott Insulator ◽  
Honeycomb Lattice ◽  
Time Reversal Symmetry ◽  
Doped Mott Insulator

scholarly journals The analytical description of a doped Mott insulator

2019 ◽  
Vol 33 (29) ◽  
pp. 1950355
Author(s):  
Yu-Liang Liu
Keyword(s):  
Green’S Function ◽  
Coulomb Interaction ◽  
Green's Function ◽  
Doping Concentration ◽  
Cuprate Superconductors ◽  
Mott Insulator ◽  
Spin Fluctuations ◽  
Hole Doping ◽  
Charge Fluctuation ◽  
Doped Mott Insulator

With the hierarchical Green’s function approach, we study a doped Mott insulator described with the Hubbard model by analytically solving the equations of motion of an one-particle Green’s function and related multiple-point correlation functions, and find that the separation of the spin and charge degrees of freedom of the electrons is an intrinsic character of the doped Mott insulator. For enough of large on-site repulsive Coulomb interaction, we show that the spectral weight of the one-particle Green’s function is proportional to the hole doping concentration that is mainly produced by the charge fluctuation of electrons, while the excitation spectrum of the electrons is composed of two parts: One is contributed by the spin fluctuation of the electrons, which is proportional to the hole doping concentration, and another one is coming from the coupling between the charge and spin fluctuations of the electrons that takes the maximum at undoping. All of these low energy/temperature physical properties originate from the strong on-site Coulomb interaction. The present results are consistent with the spectroscopy observations of the cuprate superconductors and the numerical calculations in normal state above the pseudogap regime.

scholarly journals Non-Fermi-liquid regime of a doped Mott insulator

1999 ◽  
Vol 59 (8) ◽  
pp. 5341-5360 ◽  
Author(s):  
Olivier Parcollet ◽  
Antoine Georges
Keyword(s):  
Fermi Liquid ◽  
Mott Insulator ◽  
Doped Mott Insulator

Quantum Correlated Plasmons and Their Tunability in Undoped and Doped Mott-Insulator Cuprates

ACS Photonics ◽  
2019 ◽  
Vol 6 (12) ◽  
pp. 3281-3289 ◽  
Author(s):  
Xinmao Yin ◽  
Chi Sin Tang ◽  
Shengwei Zeng ◽  
Teguh Citra Asmara ◽  
Ping Yang ◽  
...  
Keyword(s):  
Mott Insulator ◽  
Doped Mott Insulator

scholarly journals Localized in-gap state in a single-electron doped Mott insulator

2014 ◽  
Vol 90 (24) ◽  
Author(s):  
Weng-Hang Leong ◽  
Shun-Li Yu ◽  
T. Xiang ◽  
Jian-Xin Li
Keyword(s):  
Mott Insulator ◽  
Single Electron ◽  
Doped Mott Insulator ◽  
Gap State

scholarly journals Antagonistic effects of nearest-neighbor repulsion on the superconducting pairing dynamics in the doped Mott insulator regime

2016 ◽  
Vol 94 (15) ◽  
Author(s):  
A. Reymbaut ◽  
M. Charlebois ◽  
M. Fellous Asiani ◽  
L. Fratino ◽  
P. Sémon ◽  
...  
Keyword(s):  
Nearest Neighbor ◽  
Mott Insulator ◽  
Antagonistic Effects ◽  
Doped Mott Insulator ◽  
Superconducting Pairing
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