The dynamics of glassy behavior in SrRu1-Fe O3 heterostructure

We report the magnetic interactions in SrRu1-xFexO3 epitaxial thin films. All the films showed a single-phase and good step-terrace structure with minimal surface roughness. The X-ray photoelectron spectra of Fe and Ru revealed that both transition metal elements exist in the films as Fe3+ and Ru4+....

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Bibliographic Details
Published in:	Current applied physics Vol. 58; pp. 51 - 56
Main Authors:	Dash, Umasankar, Pradhan, Soumen, Rao, M.S. Ramachandra, Veillon, F., Prellier, W., Jung, Chang Uk
Format:	Journal Article
Language:	English
Published:	한국물리학회 01.02.2024
Subjects:	물리학
ISSN:	1567-1739, 1878-1675
Online Access:	Get full text
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Summary:	We report the magnetic interactions in SrRu1-xFexO3 epitaxial thin films. All the films showed a single-phase and good step-terrace structure with minimal surface roughness. The X-ray photoelectron spectra of Fe and Ru revealed that both transition metal elements exist in the films as Fe3+ and Ru4+. With Fe doping, the itinerant ferromagnetic behavior and ferromagnetic transition temperature gradually decreased, but the coercivity field increased. The magnetic interplay between Fe3+-O-Fe3+ is coined as antiferromagnetic. There was another interaction between Ru4+-O-Fe3+ which is best described as ferromagnetic. Furthermore, the magnetic frustration in our films caused by the doped Fe resulted in dynamic glassy behavior. On the other hand, the epitaxial strain from the imminent SrTiO3 substrate along with change in oxygen vacancy might have strong evidence for the spin-glass nature in our thin films. KCI Citation Count: 0
ISSN:	1567-1739 1878-1675
DOI:	10.1016/j.cap.2023.12.003