Shu-Jen Han, Dharmendar Reddy, et al.
ACS Nano
We report recent NMR results in cuprates. The oxygen Knight shift and the Cu nuclear spin-lattice relaxation rate in Bi2.1Sr1.94Ca0.88Cu2.07O8+δ single crystals revealed a gapless superconducting state, which can be most naturally explained by a d-wave pairing state and the intrinsic disorder in this material. The Cu nuclear spin-spin relaxation rate in underdoped YBa2Cu3O6.63 shows distinct temperature dependence from the spin-lattice relaxation rate, providing direct evidence for a pseudo spin-gap near the antiferromagnetic wave vector. © 1994 Plenum Publishing Corporation.
Shu-Jen Han, Dharmendar Reddy, et al.
ACS Nano
Arvind Kumar, Jeffrey J. Welser, et al.
MRS Spring 2000
P. Martensson, R.M. Feenstra
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
E. Burstein
Ferroelectrics