Тип публикации: статья из журнала
Год издания: 2003
Идентификатор DOI: 10.1134/1.1565633
Аннотация: We have studied the magnetoresistive properties of a structure comprising single crystal manganite Eu0.7Pb0.3MnO3 covered with an epitaxial iron film. At temperatures below T-C of the manganite crystal, the structure exhibits positive magnetoresistance. The behavior of the resistance as a function of the magnetic field is characterПоказать полностьюistic of a tunneling junction with ferromagnetic electrodes separated by a thin insulating film. The observed effect is related to the formation of a transition layer at the manganite-Fe interface, which is depleted of oxygen and possesses dielectric properties. The sensitivity of the resistance with respect to the magnetic field is determined both by the negative magnetoresistance of the manganite crystal and by the tunneling contribution to the conductivity, whereby the tunneling current depends on the mutual orientation of magnetic moments of the electrodes (Eu0.7Pb0.3MnO3 crystal and Fe film). (C) 2003 MAIK "Nauka/Interperiodica".
Журнал: TECHNICAL PHYSICS LETTERS
Выпуск журнала: Vol. 29, Is. 3
Номера страниц: 200-202
ISSN журнала: 10637850
Место издания: MELVILLE
Издатель: AMER INST PHYSICS