arXiv Open Access 2006

Impurity susceptibility and the fate of spin-flop transitions in lightly-doped La(2)CuO(4)

M. B. Silva Neto L. Benfatto

Lihat Sumber

Abstrak

We investigate the occurrence of a two-step spin-flop transition and spin reorientation when a longitudinal magnetic field is applied to lightly hole-doped La(2)CuO(4). We find that for large and strongly frustrating impurities, such as Sr in La(2-x)Sr(x)CuO(4), the huge enhancement of the longitudinal susceptibility suppresses the intermediate flop and the reorientation of spins is smooth and continuous. Contrary, for small and weakly frustrating impurities, such as O in La(2)CuO(4+y), a discontinuous spin reorientation (two-step spin-flop transition) takes place. Furthermore, we show that for La(2-x)Sr(x)CuO(4) the field dependence of the magnon gaps differs qualitatively from the La(2)CuO(4) case, a prediction to be verified with Raman spectroscopy or neutron scattering.

Topik & Kata Kunci

cond-mat.str-el cond-mat.supr-con

Penulis (2)

M. B. Silva Neto

L. Benfatto

Format Sitasi

APA MLA BibTeX

Neto, M.B.S., Benfatto, L. (2006). Impurity susceptibility and the fate of spin-flop transitions in lightly-doped La(2)CuO(4). https://arxiv.org/abs/cond-mat/0611183

Akses Cepat

Lihat di Sumber

Informasi Jurnal

Tahun Terbit: 2006
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓