Magnetoresistive study of the antiferromagnetic-weak ferromagnetic transition in single-crystal La₂CuO₄+δ

Magnetoresistive study of the antiferromagnetic-weak ferromagnetic transition in single-crystal La₂CuO₄+δ

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

Тема: Низкотемпеpатуpный магнетизм

Інший ID: PACS: 74.72.Dn, 75.30.Kz, 75.50.Ee

URI: http://dspace.nbuv.gov.ua/handle/123456789/119724

Посилання: Magnetoresistive study of the antiferromagnetic-weak ferromagnetic transition in single-crystal La₂CuO₄+δ / B.I. Belevtsev, N.V. Dalakova, V.N. Savitsky, A.V. Bondarenko, A.S. Panfilov, I.S. Braude // Физика низких температур. — 2004. — Т. 30, № 5. — С. 551-557. — Бібліогр.: 38 назв. — англ.

Дата: 2004

Завантажень: 443

Magnetoresistive study of the antiferromagnetic-weak ferromagnetic transition in single-crystal La₂CuO₄+δ

Анотація:

Resistive measurements were made to study the magnetic field-induced antiferromagnetic (AF)—weak ferromagnetic (WF) transition in the La₂CuO₄ single crystal. The magnetic field (dc or pulsed) was applied normally to the CuO₂ 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 La₂CuO₄ single crystal in the direction parallel to the CuO₂ layers. The results provide support for the three-dimensional nature of the hopping conduction of this layered oxide.

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