Chemistry and structure of Hg-based superconducting Cu mixed oxides
The most relevant aspects of thermodynamics, preparation, crystal structure and
superconducting properties under ambient and high pressure of HgBa 2 Ca n− 1 Cu n O …
superconducting properties under ambient and high pressure of HgBa 2 Ca n− 1 Cu n O …
Zero Resistivity above 150 K in HgBa2Ca2Cu3O8+δ at High Pressure
N Takeshita, A Yamamoto, A Iyo… - journal of the physical …, 2013 - journals.jps.jp
We measured the electrical resistivity of a HgBa2Ca2Cu3O8+ δ (Hg-1223) polycrystalline
sample under high pressure. Owing to the improved sample quality and the nearly …
sample under high pressure. Owing to the improved sample quality and the nearly …
Study on enhancement of Tc (⩾ 130 K) in TlBa2Ca2Cu3Oy superconductors
A Iyo, Y Tanaka, Y Ishiura, M Tokumoto… - Superconductor …, 2001 - iopscience.iop.org
Abstract A TlBa 2 Ca 2 Cu 3 O y (Tl-1223) superconductor with an ideal composition has a
much higher T c than the established value (~ 120 K). The intrinsic T c arises by suppression …
much higher T c than the established value (~ 120 K). The intrinsic T c arises by suppression …
Precision neutron-diffraction study of the high-ssuperconductor s
A neutron-diffraction study of HgBa 2 CuO 4+ δ structure and its dependence on extra
oxygen content for δ between 0.06 and 0.19 has been carried out with four pure samples …
oxygen content for δ between 0.06 and 0.19 has been carried out with four pure samples …
Effect of Re substitution on the defect structure, and superconducting properties of (Hg1− xRex) Ba2Can− 1CunO2n+ 2+ δ (n= 2, 3, 4)
O Chmaissem, P Guptasarma, U Welp… - Physica C …, 1997 - Elsevier
We have investigated the structure, and superconducting properties of a series of Re
substituted HgBa2Can− 1CunO2n+ 2+ δ (n= 2, 3, 4) samples by neutron powder diffraction …
substituted HgBa2Can− 1CunO2n+ 2+ δ (n= 2, 3, 4) samples by neutron powder diffraction …
Enhancement of Tc of CyCu1− yBa2Ca2Cu3Ox from 67 K to 120 K by reduction treatments
The Tc of the CyCu1− yBa2Ca2Cu3O8+ δ (y≈ 0.5) phase, synthesized under high
pressure, has been raised from 67 K to about 120 K by heat-treatments under reducing …
pressure, has been raised from 67 K to about 120 K by heat-treatments under reducing …
63Cu and 199Hg NMR in overdoped HgBa2CaCu2O6+ δ
We report on 63Cu and 199Hg NMR spectra and nuclear spin-lattice relaxation rate (1/T1)
measurements, and the Cu NQR spectrum, in HgBa2CaCu2O6+ δ powder sample with Tc …
measurements, and the Cu NQR spectrum, in HgBa2CaCu2O6+ δ powder sample with Tc …
Formation of HgBa2Ca2Cu3O8+ δ with additives under ambient conditions
RL Meng, BR Hickey, YY Sun, Y Cao… - … and its applications, 1996 - Elsevier
A systematic do** study on HgBa2Ca2Cu3O8+ δ has been carried out. We found that the
addition of slight amounts of Hg-halogenide and Re-oxide shortens the final reaction time …
addition of slight amounts of Hg-halogenide and Re-oxide shortens the final reaction time …
Crystal chemistry of CuBa2Can− 1CunOy (n= 4, 5, 6) superconductors
J Akimoto, K Tokiwa, A Iyo, H Ihara, H Hayakawa… - Physica C …, 1997 - Elsevier
The crystal structures of Cu-based superconductors CuxBa2Can− 1CunOy and (Cu, C)
Ba2Can− 1CunOy with n= 4, 5, 6 have been investigated using intensity data collected on …
Ba2Can− 1CunOy with n= 4, 5, 6 have been investigated using intensity data collected on …
Hg-1212 and Hg-1223 single crystals: Synthesis and characterisation
R Gatt, E Olsson, A Morawski, T Lada… - Physica C …, 1997 - Elsevier
Single crystals of HgBa2CaCu2O6+ δ (Hg-1212) and HgBa2Ca2Cu3O8+ δ (Hg-1223) were
grown from the melt at an argon pressure of 10 kbar. Electron microscopy, as well as single …
grown from the melt at an argon pressure of 10 kbar. Electron microscopy, as well as single …