Magnetoelectricity in multiferroically composed multilayers and multiglasses
authors Kleemann, W; Borisov, P; Shvartsman, VV; Bedanta, S; Tkach, A; Vilarinho, PM
nationality International
journal JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
author keywords Magnetoelectric effect; Multiferroics; Spintronics; Exchange bias; MRAM; Dipolar glass; Spin glass; Polar soft-mode
keywords SUSCEPTIBILITY; CR2O3; FILMS
abstract Single-crystalline magnetoelectric (ME) antiferromagnetic Cr(2)O(3) exchange coupled to a ferromagnetic multilayer (Pt/Co/Pt)(n), n >= 1, represents a multiphase multiferroic material with sophisticated multifunctional properties. They comprise the possibility of switching the exchange bias (EB) of the ferromagnetic hysteresis loop via the linear ME effect of Cr(2)O(3), and to design MERAM and logic cells operating at room temperature. Quadratic and cubic ME effects - promoted by soft-mode quantum fluctuations - are observed at lowest order in ceramic Sr(0.98)Mn(0.02)TiO(3) at low temperatures. Dipolar and spin glass orders occur simultaneously on the Mn(2+) subsystem and form a multiglass by analogy with conventional multiferroics. (C) 2009 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 0304-8853
year published 2009
volume 321
issue 11
beginning page 1785
ending page 1789
digital object identifier (doi) 10.1016/j.jmmm.2009.02.006
web of science category Materials Science, Multidisciplinary; Physics, Condensed Matter
subject category Materials Science; Physics
unique article identifier WOS:000265238600025
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journal impact factor 2.717
5 year journal impact factor 2.723
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