644 citations · 871 across the 4 of their papers we have counts for
5 papers
Magnetically driven ferroelectric order in NiVO
G. Lawes, A. B. Harris, T. Kimura +8
We show that for NiVO long-range ferroelectric and incommensurate magnetic order appear simultaneously in a single phase transition. The temperature and magnetic field…
Fermi surface and quasiparticle dynamics of Na(x)CoO2 {x=0.7} investigated by Angle-Resolved Photoemission Spectroscopy
M. Z. Hasan, Y. -D. Chuang, A. P. Kuprin +13
We present an angle-resolved photoemission study of Na0.7CoO2, the host cobaltate of the NaxCoO2.yH2O series. Our results show a large hexagonal-like hole-type Fermi surface, an ex…
Anomalous high-temperature Hall effect on the triangular lattice in Na_xCoO_2
Yayu Wang, Nyrissa S. Rogado, R. J. Cava +1
The Hall coefficient R_H of Na_xCoO_2 (x = 0.68) behaves anomalously at high temperatures. From 200 to 500 K, R_H increases linearly with T to 8 times the expected Drude value, wit…
MgB2 Energy Gap Determination by Scanning Tunneling Spectroscopy
T. W. Heitmann, S. D. Bu, D. M. Kim +13
We report scanning tunneling spectroscopy (STS) measurements of the gap properties of both ceramic MgB2 and c-axis oriented epitaxial MgB2 thin films. Both show a temperature depen…
Loss of superconductivity and structural transition in Mg1-xAlxB2
J. S. Slusky, N. Rogado, K. A. Regan +8
The basic magnetic and electronic properties of most binary compounds have been well known for decades. Therefore the recent announcement of superconductivity at 39 K in the simple…