Strain-Induced Magnetic Phases in Single-Crystal SrMnO<sub>3</sub> Thin-Film Membranes
ORAL
Abstract
Thin-film oxide membranes provide a promising platform for discovering strain-induced emergent physical properties not achievable in epitaxial thin films. Theoretical calculations predict that high biaxial strains (greater than 5%) can transition SrMnO₃ from an antiferromagnetic spin configuration to a ferromagnetic one. We have successfully fabricated high-quality, single-crystal SrMnO₃ free-standing membranes released from the growth substrate via an epitaxial sacrificial layer. These membranes were then transferred onto polyimide sheets, stretched to arbitrary tensile strains using micromanipulators, and the strain-state characterized using optical microscopy and X-ray diffraction. We will discuss the magnetic properties of SrMnO₃ under various strain conditions.
*This research was supported by NSF through the University of Wisconsin Materials Research Science and Engineering Center (DMR-2309000), Gordon and Betty Moore Foundation's EPiQS Initiative, grant GBMF9065 to C.B.E., Vannevar Bush Faculty Fellowship (N00014-20-1-2844) to C.B.E. Transport and magnetic measurement at the University of Wisconsin–Madison was supported by the US Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences (BES), under award number DE-FG02-06ER46327.
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Presenters
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Paul Lenharth
- University of Wisconsin - Madison