Relaxor characteristics at the interfaces of [NdMnO3/SrMnO3/LaMnO3] superlattices
J. W. Seo, B. T. Phan, J. Stahn, J. Lee, and C. Panagopoulos
TL;DR
This study explores the magnetic properties of [NdMnO3/SrMnO3/LaMnO3] superlattices, revealing relaxor and glassy-like behavior at low temperatures, which could enable nano-scale magnetic devices.
Contribution
It reports the discovery of relaxor and glassy magnetic behavior at interfaces of specific antiferromagnetic oxide superlattices, a novel observation in this material system.
Findings
Relaxor, glassy-like behavior observed below 36K.
Emergence of magnetic metastability at interfaces.
Potential for nano-scale magnetic device applications.
Abstract
We have investigated the magnetic properties of transition metal oxide superlattices with broken inversion symmetry composed of three different antiferromagnetic insulators, [NdMnO3/SrMnO3/LaMnO3]. In the superlattices studied here, we identify the emergence of a relaxor, glassy-like behavior below spin glass temperature, T=36K. Our results offer the possibility to study and utilize magnetically metastable devices confined in nano-scale interfaces.
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