494 citations
- The University of TokyoJP18 papers
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9 papers · 1 filter
Effects of carbon incorporation on doping state of YBa2Cu3Oy
A. Yamamoto, K. Hirose, Y. Itoh +2
Effects of carbon incorporation on the doping state of YBa2Cu3Oy (Y-123) were investigated. Quantitative carbon analysis revealed that carbon could be introduced into Y-123 from bo…
Pressure dependence of the upper critical field of MgB2 and of YNi2B2C
H. Suderow, V. G. Tissen, J. P. Brison +5
We present measurements of H under pressure in MgB and in YNiBC. The changes in the shape of H are interpreted within current models and show the ev…
Muon Spin Relaxation Studies of Magnetic-Field-Induced Effects in High- Superconductors
A. T. Savici, A. Fukaya, I. M. Gat-Malureanu +19
Muon spin relaxation (SR) measurements in high transverse magnetic fields () revealed strong field-induced quasi-static magnetism in the underdoped and Eu dope…
Mott gap excitations in twin-free YBa2Cu3O7-d (Tc = 93 K) studied by RIXS
K. Ishii, K. Tsutsui, Y. Endoh +9
Mott gap excitations in the high-Tc superconductor of the optimal doped YBa2Cu3O7-d (Tc = 93 K) have been studied by the resonant inelastic x-ray scattering method. Anisotropic spe…
Carbon-substitution dependent multiple superconducting gap of MgB: a "sub-meV" resolution photoemission study
S. Tsuda, T. Yokoya, T. Kiss +10
``Sub-meV'' resolution photoemission spectroscopy was used to study carbon-substitution dependence on the multiple superconducting gap of Mg(BC. Two features c…
Softening of Cu-O bond stretching phonon in tetragonal HgBaCuO
H. Uchiyama, A. Q. R. Baron, S. Tsutsui +5
Phonons in nearly optimally doped HgBaCuO were studied by inelastic X-ray scattering. The dispersion of the low energy modes is well described by a shell model, while t…