High magnetic field investigations of the magnetoelectric effect in magnetic ferroelectrics (RBi)FeO 3
1995; Taylor & Francis; Volume: 169; Issue: 1 Linguagem: Inglês
10.1080/00150199508217318
ISSN1563-5112
AutoresA. M. Kadomtseva, Yu. F. Popov, T. V. Schogoleva, G. P. Vorob’ev, А. К. Звездин, Igor Dubenko, V.A. Murashov, Д. Н. Раков,
Tópico(s)Magnetic and transport properties of perovskites and related materials
ResumoAbstract The field induced transition from the space modulated spin structures to the homogeneous antiferro-magnetic state in magnetic ferroelectrics R x Bi1–x FeO3 (R = La3+, Nd3+, Dy3+) was investigated. It has been established that space modulated spin structures (SMSS) exists in compounds: with La up to concentration x = 0.6; with Nd up to x = 0,1 and Dy up to x = 0.1. For all investigated compounds the polarization curves have linear dependence upon the field above Hcr . The critical field decreases with increase of concentration x and magnetic moment of the R ions. Coexistence of weak ferromagnetic moment and SMSS was observed on the compound La x Bi1–x FeO3 at x ⩾ 0,1.
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