{"id":{"repo_id":"colo-mines","oai_identifier":"oai:repository.mines.edu:11124/178494"},"canonical_url":"https://search.dev.ndltd.org/etd/colo-mines/oai:repository.mines.edu:11124/178494","repository":{"repo_id":"colo-mines","name":"Colorado School of Mines","base_url":"https://repository.mines.edu/server/oai/request"},"display":{"title":"Skyrmions and non-collinear magnetic domains in Fe₃GeTe₂","abstract":"Superconductor-ferromagnet heterostructures have potential for use in topological quantum computing schemes. Of particular interest are heterostructures that utilize Fe3GeTe2, an air sensitive van der Waals (vdW) material known to host nanoscale magnetic whirlpools called skyrmions. The vdW nature of Fe3GeTe2 means we can exfoliate 2D layers that can be easily incorporated into a wide range of devices. Behaving as particles that can be manipulated, skyrmions are potentially useful for topological quantum computing and low-energy spintronic devices. To work towards creating superconductor-ferromagnetic heterostructures we (1) designed and constructed a setup for deterministic placement of air sensitive, 2D materials, (2) developed fabrication procedures to produce Fe3GeTe2 Hall bar devices and (3)characterized the eld and temperature-dependent magnetic properties of Fe3GeTe2 using magnetometry, magnetic force microscopy and electrical transport measurements. We found that the magnetic properties of Fe3GeTe2 are highly dependent on the thermal and magnetic history and the thickness of the sample. In addition, we have observed non-collinear magnetic domains including skyrmions, labyrinths and stripes. We have also observed that adding a layer of WTe2 on top of the Fe3GeTe2 can increase the Dzyaloshinskii{Moriya Interaction energy, which is the cause of non-collinear magnetic domains. Results from the magnetic characterization inform us on the conditions under which skyrmions and a variety of magnetic domains form in the Fe3GeTe2. In the future this will be used for studies on the proximity eects in Fe3GeTe2-superconductor heterostructures.","abstract_html":"Superconductor-ferromagnet heterostructures have potential for use in topological quantum computing schemes. Of particular interest are heterostructures that utilize Fe3GeTe2, an air sensitive van der Waals (vdW) material known to host nanoscale magnetic whirlpools called skyrmions. The vdW nature of Fe3GeTe2 means we can exfoliate 2D layers that can be easily incorporated into a wide range of devices. Behaving as particles that can be manipulated, skyrmions are potentially useful for topological quantum computing and low-energy spintronic devices. To work towards creating superconductor-ferromagnetic heterostructures we (1) designed and constructed a setup for deterministic placement of air sensitive, 2D materials, (2) developed fabrication procedures to produce Fe3GeTe2 Hall bar devices and (3)characterized the eld and temperature-dependent magnetic properties of Fe3GeTe2 using magnetometry, magnetic force microscopy and electrical transport measurements. We found that the magnetic properties of Fe3GeTe2 are highly dependent on the thermal and magnetic history and the thickness of the sample. In addition, we have observed non-collinear magnetic domains including skyrmions, labyrinths and stripes. We have also observed that adding a layer of WTe2 on top of the Fe3GeTe2 can increase the Dzyaloshinskii{Moriya Interaction energy, which is the cause of non-collinear magnetic domains. Results from the magnetic characterization inform us on the conditions under which skyrmions and a variety of magnetic domains form in the Fe3GeTe2. In the future this will be used for studies on the proximity eects in Fe3GeTe2-superconductor heterostructures.","abstract_has_math":false,"creators":["Slayback, Paul T."],"institution":"Colorado School of Mines. Arthur Lakes Library","degree_name":"Master of Science (M.S.)","degree_level":"Masters","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":[],"advisors":["Eley, Serena"],"committee_chairs":[],"committee_members":["Toberer, Eric","Mozur, Eve"],"year":2023,"date_issued":"2023","date_published":"2023","updated_at":"2026-07-24T01:42:00Z","subjects":["2D material","Fe₃GeTe₂","non-collinear magnetism","skyrmion","van der Waal"],"languages":["eng","English"],"rights":["Copyright of the original work is retained by the author."],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["T 9551"],"render_values":[{"text":"T 9551","href":null,"code":true}]}]},"links":{"outbound_url":"https://hdl.handle.net/11124/178494","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Eley, Serena"]},{"key":"dc:contributor.committeemember","label":"Committee Member","values":["Toberer, Eric","Mozur, Eve"]},{"key":"dc:creator","label":"Author","values":["Slayback, Paul T."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2023-10-27T15:12:08Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2023-10-27T15:12:08Z"]},{"key":"dc:date.issued","label":"Date","values":["2023"]},{"key":"dc:publisher","label":"Institution","values":["Colorado School of Mines. 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Of particular interest are heterostructures that utilize Fe3GeTe2, an air sensitive van der Waals (vdW) material known to host nanoscale magnetic whirlpools called skyrmions. The vdW nature of Fe3GeTe2 means we can exfoliate 2D layers that can be easily incorporated into a wide range of devices. Behaving as particles that can be manipulated, skyrmions are potentially useful for topological quantum computing and low-energy spintronic devices. To work towards creating superconductor-ferromagnetic heterostructures we (1) designed and constructed a setup for deterministic placement of air sensitive, 2D materials, (2) developed fabrication procedures to produce Fe3GeTe2 Hall bar devices and (3)characterized the eld and temperature-dependent magnetic properties of Fe3GeTe2 using magnetometry, magnetic force microscopy and electrical transport measurements. We found that the magnetic properties of Fe3GeTe2 are highly dependent on the thermal and magnetic history and the thickness of the sample. In addition, we have observed non-collinear magnetic domains including skyrmions, labyrinths and stripes. We have also observed that adding a layer of WTe2 on top of the Fe3GeTe2 can increase the Dzyaloshinskii{Moriya Interaction energy, which is the cause of non-collinear magnetic domains. Results from the magnetic characterization inform us on the conditions under which skyrmions and a variety of magnetic domains form in the Fe3GeTe2. In the future this will be used for studies on the proximity eects in Fe3GeTe2-superconductor heterostructures."]},{"key":"dc:format.medium","label":"Dc Format Medium","values":["born digital","masters theses"]},{"key":"dc:title","label":"Title","values":["Skyrmions and non-collinear magnetic domains in Fe₃GeTe₂"]}]}],"canonical_facts":{"dc:contributor.advisor":["Eley, Serena"],"dc:contributor.committeemember":["Toberer, Eric","Mozur, Eve"],"dc:creator":["Slayback, Paul T."],"dc:date.accessioned":["2023-10-27T15:12:08Z"],"dc:date.available":["2023-10-27T15:12:08Z"],"dc:date.issued":["2023"],"dc:description":["Includes bibliographical references.","2023 Spring."],"dc:description.abstract":["Superconductor-ferromagnet heterostructures have potential for use in topological quantum computing schemes. Of particular interest are heterostructures that utilize Fe3GeTe2, an air sensitive van der Waals (vdW) material known to host nanoscale magnetic whirlpools called skyrmions. The vdW nature of Fe3GeTe2 means we can exfoliate 2D layers that can be easily incorporated into a wide range of devices. Behaving as particles that can be manipulated, skyrmions are potentially useful for topological quantum computing and low-energy spintronic devices. To work towards creating superconductor-ferromagnetic heterostructures we (1) designed and constructed a setup for deterministic placement of air sensitive, 2D materials, (2) developed fabrication procedures to produce Fe3GeTe2 Hall bar devices and (3)characterized the eld and temperature-dependent magnetic properties of Fe3GeTe2 using magnetometry, magnetic force microscopy and electrical transport measurements. We found that the magnetic properties of Fe3GeTe2 are highly dependent on the thermal and magnetic history and the thickness of the sample. In addition, we have observed non-collinear magnetic domains including skyrmions, labyrinths and stripes. We have also observed that adding a layer of WTe2 on top of the Fe3GeTe2 can increase the Dzyaloshinskii{Moriya Interaction energy, which is the cause of non-collinear magnetic domains. Results from the magnetic characterization inform us on the conditions under which skyrmions and a variety of magnetic domains form in the Fe3GeTe2. In the future this will be used for studies on the proximity eects in Fe3GeTe2-superconductor heterostructures."],"dc:format.medium":["born digital","masters theses"],"dc:identifier":["Slayback_mines_0052N_12622.pdf","T 9551"],"dc:identifier.uri":["https://hdl.handle.net/11124/178494"],"dc:language":["English"],"dc:language.iso":["eng"],"dc:publisher":["Colorado School of Mines. Arthur Lakes Library"],"dc:rights":["Copyright of the original work is retained by the author."],"dc:subject":["2D material","Fe₃GeTe₂","non-collinear magnetism","skyrmion","van der Waal"],"dc:title":["Skyrmions and non-collinear magnetic domains in Fe₃GeTe₂"],"dc:type":["Text"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Masters"],"thesis:degree_name":["Master of Science (M.S.)"],"thesis:institution_name":["Colorado School of Mines"]},"updated_at":"2026-07-24T01:42:00Z"}