scholarly journals Metal-Ligand Interplay in Strongly Correlated Oxides: A Parametrized Phase Diagram for Pressure-Induced Spin Transitions

2007 ◽  
Vol 98 (19) ◽  
Author(s):  
Aleksi Mattila ◽  
Jean-Pascal Rueff ◽  
James Badro ◽  
György Vankó ◽  
Abhay Shukla
Keyword(s):  
Phase Diagram ◽  
Strongly Correlated ◽  
Strongly Correlated Oxides ◽  
Metal Ligand ◽  
Spin Transitions

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.

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

Ultrafast dynamical response of strongly correlated oxides: role of coherent optical and acoustic oscillations

2010 ◽  
Vol 57 (11) ◽  
pp. 959-966 ◽  
Author(s):  
B. Mansart ◽  
D. Boschetto ◽  
A. Sambri ◽  
R. Malaquias ◽  
F. Miletto Granozio ◽  
...  
Keyword(s):  
Dynamical Response ◽  
Strongly Correlated ◽  
Acoustic Oscillations ◽  
Strongly Correlated Oxides

scholarly journals Assessing Hubbard-corrected AM05+U and PBEsol+U density functionals for strongly correlated oxides CeO2 and Ce2O3

2016 ◽  
Vol 18 (38) ◽  
pp. 26816-26826 ◽  
Author(s):  
Philippe F. Weck ◽  
Eunja Kim
Keyword(s):  
Strongly Correlated ◽  
Density Functionals ◽  
Structure Property ◽  
Exchange Correlation ◽  
Structure Property Relationships ◽  
Strongly Correlated Oxides

The structure–property relationships of bulk CeO2 and Ce2O3 have been investigated within the DFT+U framework. AM05+U and PBEsol+U reproduce experimental crystalline parameters and properties with superior accuracy compared to conventional Hubbard-corrected exchange–correlation functionals.

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 Strongly correlated oxides for energy harvesting

2018 ◽  
Vol 19 (1) ◽  
pp. 899-908 ◽  
Author(s):  
Jobu Matsuno ◽  
Jun Fujioka ◽  
Tetsuji Okuda ◽  
Kazunori Ueno ◽  
Takashi Mizokawa ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Strongly Correlated ◽  
Strongly Correlated Oxides

scholarly journals Shock compression of strongly correlated oxides: A liquid-regime equation of state for cerium(IV) oxide

2018 ◽  
Vol 97 (12) ◽  
Author(s):  
Philippe F. Weck ◽  
Kyle R. Cochrane ◽  
Seth Root ◽  
J. Matthew D. Lane ◽  
Luke Shulenburger ◽  
...  
Keyword(s):  
Equation Of State ◽  
Shock Compression ◽  
Strongly Correlated ◽  
Strongly Correlated Oxides

Features of Optical Properties and the Electronic Structure of Nanostructured Oxides of 3d-Metals

2010 ◽  
Vol 168-169 ◽  
pp. 317-320 ◽  
Author(s):  
Boris A. Gizhevskii ◽  
Yu.P. Sukhorukov ◽  
L.V. Nomerovannaya ◽  
A.A. Makhnev ◽  
Yurii S. Ponosov ◽  
...  
Keyword(s):  
Optical Properties ◽  
Electronic Structure ◽  
Absorption Edge ◽  
High Pressure Torsion ◽  
Fundamental Absorption Edge ◽  
Strongly Correlated ◽  
Phonon Modes ◽  
3D Metals ◽  
Wide Range ◽  
Strongly Correlated Oxides

Features of the optical properties of nanostructured strongly correlated oxides CuO, Y3Fe5O12, and FeBO3 in a wide range of energies, which includes both the fundamental absorption region, low-energy electron excitations, and phonon modes have been investigated by methods of optical spectroscopy. Absorption and reflection spectra, Raman spectra, and ellipsometry measurements are carried out on the samples of oxide nanostructured ceramics. High-density nanoceramics were prepared by shock-wave loading and high pressure torsion methods from coarse-grain oxide powders. Strong smearing of the fundamental absorption edge is revealed for all nanoceramics. Anomalous red shift of the absorption edge Eg is found in CuO nanooxide. The features of the optical functions in nanooxides of 3d-metals may be attributed to high defectiveness of nanooxides, peculiarities in the electronic structure of strongly correlated oxides and their tendency to electronic phase separation.

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