Results 101 to 110 of about 9,235 (228)
Electron Correlation and High-Temperature Superconductivity
Condensed MatterStrong electron correlation plays a central role in the high-temperature superconductivity (HTSC) of cuprates. However, to date, research has focused only on its role in spin dynamics and related effects, even though it is becoming increasingly clear ...
Takeshi Egami
doaj +1 more source
Superconductivity in the cuprates
, 1994 We evaluate numerically several superconducting correlation functions in a generalized $t-J$ model derived for hole-doped CuO$_2$ planes. The model includes a three-site term $t''$ similar to that obtained in the large $U$ limit of the Hubbard model but of opposite sign for realistic O-O hopping.
Batista, C. D., Aligia, A. A.
openaire +2 more sources
Universal precursor of superconductivity in the cuprates [PDF]
, 2019 Using torque magnetometry, we reveal remarkably simple universal behavior of the superconducting (SC) precursor in the cuprates by tracking the nonlinear diamagnetism above Tc in four distinct compounds: singleCuO2-layerHgBa2CuO4+δ,La 2−xSrxCuO4 andBi2 ...
Shekhter, A. +12 more
core +1 more source
Two-Carrier Description of Cuprate Superconductors from NMR
Condensed MatterCuprates currently hold the record for the highest temperature superconductivity at ambient pressure, but the microscopic understanding of these materials remains elusive. Here, we utilize nuclear magnetic resonance (NMR) data of planar oxygen and copper
Daniel Bandur +4 more
doaj +1 more source
Charge transport in underdoped bilayer cuprates [PDF]
, 2013 Within the t-J model, we study the charge transport in underdoped bilayer cuprates by considering the bilayer interaction. Although the bilayer interaction leads to the band splitting in the electronic structure, the qualitative behavior of the charge ...
Yuan, Feng; Qin, Jihong; Feng, Shiping; Chen, Wei Yeu
core +1 more source
Impurity band Mott insulators: a new route to high Tc superconductivity
Science and Technology of Advanced Materials, 2008 Last century witnessed the birth of semiconductor electronics and nanotechnology. The physics behind these revolutionary developments is certain quantum mechanical behaviour of 'impurity state electrons' in crystalline 'band insulators', such as Si, Ge ...
Ganapathy Baskaran
doaj
Dynamic charge order from strong correlations in the cuprates
Frontiers in Electronic MaterialsCharge order has been a central focus in the study of cuprate high-temperature superconductors due to its intriguing yet not fully understood connection to superconductivity. Recent advances in resonant inelastic x-ray scattering (RIXS) in the soft x-ray
Eduardo H. da Silva Neto +4 more
doaj +1 more source
Sr2IrO4: Gateway to cuprate superconductivity?
APL Materials, 2015 High temperature superconductivity in cuprates remains a defining challenge in condensed matter physics. Recently, a new set of related compounds based on Ir rather than Cu has been discovered that may be on the verge of superconductivity themselves or ...
J. F. Mitchell
doaj +1 more source
Atomic Resolution Electron Microscopy of Bismuth Cuprates [PDF]
, 1989 Since the discovery of superconductivity in certain classes of cuprates, there has been much research activity aimed at understanding the structure, microstructure, electrical and other physical properties of these materials.
R. Ramesh +6 more
core +1 more source
Hidden Ferronematic Order in Underdoped Cuprates [PDF]
, 2013 We study a model for low-doped cuprates where holes aggregate into oriented stripe segments which have a magnetic vortex and antivortex at the extremes.
SEIBOLD, GOTZ ULRICH +4 more
core +1 more source