Magnetoresistive study of antiferromagnetic--weak ferromagnetic transition in single-crystal La$_{2}$CuO$_{4+δ}$

B. I. Belevtsev; N. V. Dalakova; V. N. Savitsky; A. V. Bondarenko; A. S. Panfilov; I. S. Braude

doi:10.1063/1.1739162

paper

Magnetoresistive study of antiferromagnetic--weak ferromagnetic transition in single-crystal La $_{2}$ CuO $_{4 + δ}$

arXiv:cond-mat/0312409 · doi:10.1063/1.1739162

Abstract

The resistive measurements were made to study the magnetic field-induced antiferromagnetic (AF) - weak ferromagnetic (WF) transition in La $_{2}$ CuO $_{4}$ single-crystal. The magnetic field (DC or pulsed) was applied normally to the CuO $_{2}$ layers. The transition manifested itself in a drastic decrease of the resistance in critical fields of ~5-7 T. The study is the first to display the effect of the AF -WF transition on the conductivity of the La $_{2}$ CuO $_{4}$ single-crystal in the parallel - to - CuO $_{2}$ layers direction. The results provide support for the 3-dimensional nature of the hopping conduction of this layered oxide.

8 pages, 7 figures, RevTex

Magnetoresistive study of antiferromagnetic--weak ferromagnetic transition in single-crystal La2​CuO4+δ​

Abstract

Magnetoresistive study of antiferromagnetic--weak ferromagnetic transition in single-crystal La $_{2}$ CuO $_{4 + δ}$