z-logo
Premium
Exchange Bias in La 0.67 Sr 0.33 MnO 3 /YFeO 3 Ferromagnet/Antiferromagnet Multilayer Heterostructures
Author(s) -
Fourmont Paul,
Cho Eunsoo,
Cloutier Sylvain G.,
Ross Caroline A.
Publication year - 2025
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.202501644
Subject(s) - exchange bias , antiferromagnetism , materials science , ferromagnetism , heterojunction , orthoferrite , condensed matter physics , bilayer , magnetization , magnetic field , magnetic anisotropy , optoelectronics , chemistry , physics , quantum mechanics , biochemistry , membrane
Abstract Exchange bias (EB), manifested as a hysteresis‐loop offset after field‐cooling, is demonstrated in perovskite‐structured ferromagnet/antiferromagnet (La 0.67 Sr 0.33 MnO 3 /YFeO 3 ) n heterostructures grown on (100) SrTiO 3 substrates. Bilayer samples show an EB of 306 Oe at 50 K, whereas multilayers with five layers exhibit an exchange bias of up to 424 Oe at 50 K. A spin valve consisting of La 0.67 Sr 0.33 MnO 3 /SrTiO 3 /La 0.67 Sr 0.33 MnO 3 /YFeO 3 shows stable remanent configurations resulting from pinning of the upper La 0.67 Sr 0.33 MnO 3 layer by the YFeO 3 . In contrast, EB is not observed on (111)‐oriented SrTiO 3 substrates due to interface roughening. These results demonstrate YFeO 3 as an alternative orthoferrite antiferromagnet compared to BiFeO 3 and LaFeO 3 for incorporation into exchange‐biased heterostructures.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here
Empowering knowledge with every search

Address

John Eccles House
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom