Superconductivity phase diagram of NaxCoO2·1.3H2O
The microscopic origin of superconductivity in the high-transition-temperature (high-T c)
copper oxides remains the subject of active inquiry; several of their electronic characteristics …
copper oxides remains the subject of active inquiry; several of their electronic characteristics …
Fermi Surface and Quasiparticle Dynamics of Investigated by Angle-Resolved Photoemission Spectroscopy
We present the first angle-resolved photoemission study of Na 0.7 CoO 2, the host material
of the superconducting Na x CoO 2· n H 2 O series. Our results show a hole-type Fermi …
of the superconducting Na x CoO 2· n H 2 O series. Our results show a hole-type Fermi …
Chemical composition and crystal structure of superconducting sodium cobalt oxide bilayer-hydrate
Sodium cobalt oxide bilayer-hydrate, NaxCoO2· yH2O (x≈ 0.35), was characterized by
chemical and structure analyses. The formal valence of Co was found to be+ 3.4 from redox …
chemical and structure analyses. The formal valence of Co was found to be+ 3.4 from redox …
Crystal structure of the sodium cobaltate deuterate superconductor
Neutron and x-ray powder diffraction have been used to investigate the crystal structures of
a sample of the newly-discovered superconducting sodium cobaltate deuterate compound …
a sample of the newly-discovered superconducting sodium cobaltate deuterate compound …
Thermodynamic and Transport Measurements of Superconducting Single Crystals Prepared by Electrochemical Deintercalation
Superconducting single crystal samples of Na 0.3 CoO 2· 1.3 H 2 O have been produced
using an electrochemical technique which dispenses with the usual bromine chemical …
using an electrochemical technique which dispenses with the usual bromine chemical …
Charge disproportionation and spin ordering tendencies in
The strength and effect of Coulomb correlations in the (superconducting when hydrated) x≈
1∕ 3 and “enhanced” x≈ 2∕ 3 regimes of Na x CoO 2 are evaluated using the correlated …
1∕ 3 and “enhanced” x≈ 2∕ 3 regimes of Na x CoO 2 are evaluated using the correlated …
Transport and Magnetic Studies on the Spin State Transition of Pr1-xCaxCoO3 up to High Pressure
T Fujita, T Miyashita, Y Yasui, Y Kobayashi… - Journal of the Physical …, 2004 - journals.jps.jp
Transport and magnetic measurements and structural and NMR studies have been carried
out on (Pr 1-y R'y) 1-x A x CoO 3 {R'=(rare earth elements and Y); A=(Ca, Ba and Sr)} at …
out on (Pr 1-y R'y) 1-x A x CoO 3 {R'=(rare earth elements and Y); A=(Ca, Ba and Sr)} at …
Structure and dynamics of superconducting hydrate and its unhydrated analog
Neutron scattering has been used to investigate the crystal structure and lattice dynamics of
superconducting Na 0.3 CoO 2⋅ 1. 4 (H/D) 2 O, and the “parent” Na 0.3 CoO 2 material. The …
superconducting Na 0.3 CoO 2⋅ 1. 4 (H/D) 2 O, and the “parent” Na 0.3 CoO 2 material. The …
Superconducting materials—A topical overview
R Hott, R Kleiner, T Wolf, G Zwicknagl - Frontiers in Superconducting …, 2005 - Springer
The phenomenon of superconductivity has not lost its fascination ever since its discovery in
1911. The flow of electric current without friction amounts to the realization of the old human …
1911. The flow of electric current without friction amounts to the realization of the old human …
Formation of charge and spin ordering in strongly correlated electron systems
H Cencarikova, P Farkasovský - arXiv preprint arXiv:1202.4565, 2012 - arxiv.org
In this review we present results of our theoretical study of charge and spin ordering in
strongly correlated electron systems obtained within various generalizations of the Falicov …
strongly correlated electron systems obtained within various generalizations of the Falicov …