scholarly journals Tunable Doniach phase diagram for strongly-correlated nanoclusters

2005 ◽  
Vol 71 (3) ◽  
Author(s):  
Yan Luo ◽  
C. Verdozzi ◽  
Nicholas Kioussis
Keyword(s):  
Phase Diagram ◽  
Strongly Correlated

scholarly journals What is strange about high-temperature superconductivity in cuprates?

2017 ◽  
Vol 31 (25) ◽  
pp. 1745005
Author(s):  
I. Božović ◽  
X. He ◽  
J. Wu ◽  
A. T. Bollinger
Keyword(s):  
Phase Diagram ◽  
Cuprate Superconductors ◽  
High Temperature Superconductivity ◽  
Einstein Condensation ◽  
Strongly Correlated ◽  
Bose Einstein Condensation ◽  
Ultimate Question ◽  
Underdoped Cuprates ◽  
Bose Einstein ◽  
Superconducting Parameters

Cuprate superconductors exhibit many features, but the ultimate question is why the critical temperature ([Formula: see text]) is so high. The fundamental dichotomy is between the weak-pairing, Bardeen–Cooper–Schrieffer (BCS) scenario, and Bose–Einstein condensation (BEC) of strongly-bound pairs. While for underdoped cuprates it is hotly debated which of these pictures is appropriate, it is commonly believed that on the overdoped side strongly-correlated fermion physics evolves smoothly into the conventional BCS behavior. Here, we test this dogma by studying the dependence of key superconducting parameters on doping, temperature, and external fields, in thousands of cuprate samples. The findings do not conform to BCS predictions anywhere in the phase diagram.

A strain-induced new phase diagram and unusually high Curie temperature in manganites

2017 ◽  
Vol 5 (31) ◽  
pp. 7813-7819 ◽  
Author(s):  
Yunfang Kou ◽  
Tian Miao ◽  
Hui Wang ◽  
Lin Xie ◽  
Yanmei Wang ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Critical Temperature ◽  
Curie Temperature ◽  
Functional Materials ◽  
Strongly Correlated Systems ◽  
High Curie Temperature ◽  
Strongly Correlated ◽  
Correlated Systems ◽  
Physical Phenomena ◽  
New Phase

Raising the critical temperature of functional materials is a major challenge for the exploitation of many exciting physical phenomena in strongly correlated systems.

scholarly journals Metal-insulator Phase Diagram for the Fully Diagonal Disordered Hubbard Model at Half-filling

2016 ◽  
Vol 26 (2) ◽  
pp. 159
Author(s):  
Hoang Anh Tuan ◽  
Nguyen Thi Hai Yen
Keyword(s):  
Phase Diagram ◽  
Mean Field Theory ◽  
Mean Field ◽  
Metallic State ◽  
Strongly Correlated ◽  
Potential Approximation ◽  
Metal Insulator ◽  
Band Insulator ◽  
Half Filling ◽  
Correlation Strength

The electronic properties of strongly correlated systems with binary type of disorder are investigated using the coherent potential approximation. For half-filled system, two transitions from a band insulator via a metallic state to a Mott insulator are found with increasing the correlation strength of only one of the constituents. Our phase diagram is consistent with those obtained by the dynamical mean field theory.

scholarly journals Phase diagram of incoherently driven strongly correlated photonic lattices

2017 ◽  
Vol 96 (2) ◽  
Author(s):  
Alberto Biella ◽  
Florent Storme ◽  
José Lebreuilly ◽  
Davide Rossini ◽  
Rosario Fazio ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Strongly Correlated ◽  
Photonic Lattices
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