Emergent Magnetic Phenomenon with Unconventional Structure in Epitaxial Manganate Thin Films.

ABSTRACT: A variety of emergent phenomena are enabled by interface engineering in the complex oxides heterostructures. While extensive attention is attracted to LaMnO₃ (LMO) thin films for observing the control of functionalities at its interface with substrate, the nature of the magnetic phases in the thin film is, however, controversial. Here, it is reported that the ferromagnetism in two and five unit cells thick LMO films epitaxially deposited on (001)-SrTiO₃ substrates, a ferromagnetic/ferromagnetic coupling in eight and ten unit cells ones, and a striking ferromagnetic/antiferromagnetic pinning effect with apparent positive exchange bias in 15 and 20 unit cells ones are observed. This novel phenomenon in both 15 and 20 unit cells films indicates a coexistence of three mag

SUBMITTER: Yang M 

PROVIDER: S-EPMC8261492 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature