Please use this identifier to cite or link to this item: http://dx.doi.org/10.25673/119264
Title: Investigation of novel freestanding heterostructures
Author(s): Gu, KeLook up in the Integrated Authority File of the German National Library
Referee(s): Parkin, Stuart S. P.Look up in the Integrated Authority File of the German National Library
Mertig, IngridLook up in the Integrated Authority File of the German National Library
Fernández-Pacheco, AmalioLook up in the Integrated Authority File of the German National Library
Granting Institution: Martin-Luther-Universität Halle-Wittenberg
Issue Date: 2024
Extent: 1 Online-Ressource (xiv, 136 Seiten)
Type: HochschulschriftLook up in the Integrated Authority File of the German National Library
Type: PhDThesis
Exam Date: 2024-07-25
Language: English
URN: urn:nbn:de:gbv:3:4-1981185920-1212228
Abstract: Freestanding thin films exhibit novel properties and integration flexibility beyond conventional epitaxial films, enabling next-gen devices and investigation of emergent phenomena. In this thesis, we use a water membrane based lift-off and transfer technique to fabricate several freestanding heterostructures and study their functionality. Using freestanding magnetic membranes, we demonstrate the first 3D racetrack memory device, achieving efficient domain wall motion (up to 600 m s-1) in synthetic antiferromagnetic heterostructures transferred onto ~900 nm high protrusions. We also eliminate the MgO buffer layer, allowing for direct integration with target bases. Additionally, we realize twisted La2/3Sr1/3MnO3 bilayers with tunable angles, revealing anomalous diamagnetic behavior. These results highlight the versatility of freestanding heterostructures in both advanced spintronic devices and fundamental physics.
URI: https://opendata.uni-halle.de//handle/1981185920/121222
http://dx.doi.org/10.25673/119264
Open Access: Open access publication
License: (CC BY 4.0) Creative Commons Attribution 4.0(CC BY 4.0) Creative Commons Attribution 4.0
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