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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
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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.

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B. I. Belevtsev, N. V. Dalakova, V. N. Savitsky, A. V. Bondarenko, A. S. Panfilov, I. S. Braude. 2003-12-16. Magnetoresistive study of antiferromagnetic--weak ferromagnetic transition in single-crystal La$_{2}$CuO$_{4+δ}$. https://doi.org/10.1063/1.1739162

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