1304.0512 (Y. Itoh et al.)

Cu NQR and NMR Studies of Optimally Doped Ca2-xNaxCuO2Cl2    [PDF]

Y. Itoh, T. Machi, I. Yamada, M. Azuma, M. Takano

We report on Cu nuclear quadrupole resonance (NQR) and NMR studies of an optimally hole-doped superconductor Ca2-xNaxCuO2Cl2 (Tc ~ 28 K for x ~ 0.2). In spite of robust oxygen composition, we observed a multiple broad NQR frequency spectrum and nonexponential Cu nuclear spin-lattice relaxation, being similar to those of La2-xSrxCuO4-d.

View original: http://arxiv.org/abs/1304.0512