Universität zu Köln

Piamonteze, Cinthia ORCID: 0000-0002-8416-9668, Bern, Francis ORCID: 0000-0002-3276-0077, Avula, Sridhar Reddy Venkata, Studniarek, Michal, Autieri, Carmine ORCID: 0000-0002-5008-8165, Ziese, Michael ORCID: 0000-0003-4600-1095 and Lindfors-Vrejoiu, Ionela (2021). Ferromagnetic order of ultra-thin La0.7Ba0.3MnO3 sandwiched between SrRuO3 layers. Appl. Phys. Lett., 118 (15). MELVILLE: AMER INST PHYSICS. ISSN 1077-3118

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Abstract

We demonstrate the stability of ferromagnetic order of one unit cell thick optimally doped manganite (La0.7Ba0.3MnO3, LBMO) epitaxially grown between two layers of SrRuO3 (SRO) by using x-ray magnetic circular dichroism. At low temperature, LBMO shows an inverted hysteresis loop due to the strong antiferromagnetic coupling to SRO. Moreover, above SRO T C, manganite still exhibits magnetic remanence. Density Functional Theory calculations show that coherent interfaces of LBMO with SRO hinder electronic confinement and the strong magnetic coupling enables the increase in the LBMO T C. From the structural point of view, interfacing with SRO enables LBMO to have octahedral rotations similar to bulk. All these factors jointly contribute for stable ferromagnetism up to 130K for a one unit cell LBMO film.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Piamonteze, Cinthia UNSPECIFIED orcid.org/0000-0002-8416-9668 UNSPECIFIED Bern, Francis UNSPECIFIED orcid.org/0000-0002-3276-0077 UNSPECIFIED Avula, Sridhar Reddy Venkata UNSPECIFIED UNSPECIFIED UNSPECIFIED Studniarek, Michal UNSPECIFIED UNSPECIFIED UNSPECIFIED Autieri, Carmine UNSPECIFIED orcid.org/0000-0002-5008-8165 UNSPECIFIED Ziese, Michael UNSPECIFIED orcid.org/0000-0003-4600-1095 UNSPECIFIED Lindfors-Vrejoiu, Ionela UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-596012
DOI:	10.1063/5.0043057
Journal or Publication Title:	Appl. Phys. Lett.
Volume:	118
Number:	15
Date:	2021
Publisher:	AMER INST PHYSICS
Place of Publication:	MELVILLE
ISSN:	1077-3118
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Physics, Applied Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/59601