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Correlations and Semimetallic Behaviors in Pyrochlore Oxide Cd2Re2O7
Z. Hiroi, M. Hanawa, Y. Muraoka +1
Electronic properties of the metallic pyrochlore oxide Cd2Re2O7 are studied by means of electrical resistivity and Hall measurements. Semimetallic band structures are revealed as e…
Low Temperature Symmetry of Pyrochlore Oxide Cd2Re2O7
Jun-Ichi Yamaura, Zenji Hiroi
We report the X-ray study for the pyrochlore oxide Cd2Re2O7. Two symmetry-lowering structural transitions were observed at Ts1=200K and Ts2=120K. The former is of the second order…
A new macroscopically degenerate ground state in the spin ice compound Dy2Ti2O7 under a magnetic field
Kazuyuki Matsuhira, Zenji Hiroi, Takashi Tayama +2
The low temperature magnetic properties of pyrochlore compound Dy2Ti2O7 in magnetic fields applied along the [111] direction are reported. Below 1 K, a clear plateau has been obser…
The second phase transition in the pyrochlore oxide Cd2Re2O7
Zenji Hiroi, Jun-Ichi Yamaura, Yuji Muraoka +1
Evidence for another phase transition at 120 K in the metallic pyrochlore oxide Cd2Re2O7, following the structural transition at 200 K and followed by the superconducting transitio…
Magnetic and superconducting properties of Cd2Re2O7: Cd NMR and Re NQR
O. Vyaselev, K. Arai, K. Kobayashi +5
We report Cd NMR and Re NQR studies on Cd2Re2O7, the first superconductor among pyrochlore oxides Tc=1 K. Re NQR spectrum at zero magnetic field below 100 K rules out any magnetic…