運用共平面波導探測鐵磁薄膜的鐵磁共振及自旋幫浦效應

Simple item page
dc.contributor江佩勳zh_TW
dc.contributorJiang, Pei-Hsunen_US
dc.contributor.author馬凱俊zh_TW
dc.contributor.authorMa, Kai-Chunen_US
dc.date.accessioned2019-09-05T02:09:44Z
dc.date.available2020-08-22
dc.date.available2019-09-05T02:09:44Z
dc.date.issued2016
dc.description.abstract本實驗主要探討鐵磁性物質的自旋幫浦效應（spin pumping effect, SPE），主要是鐵磁性物質，選用鎳鐵合金（permalloy, Py, Ni80Fe20）及鈷（cobalt, Co）和一般金屬，選用鉑（platinum, Pt）所組成的雙層薄膜結構。鐵磁共振（ferromagnetic resonance, FMR）現象在鐵磁/一般金屬雙層薄膜結構中，可使其鐵磁層產生一自旋流（spin current）注入一般金屬層，稱之為自旋幫浦效應。自旋流跨過鐵磁/一般金屬雙層薄膜之介面時，不同自旋方向的電子由於自旋軌道耦合作用（spin-orbit coupling, SOC），會引致逆自旋霍爾效應（inverse spin Hall effect, ISHE）並產生一橫向電荷流。 　　我們利用了共平面波導（coplanar waveguide, CPW）來探測鐵磁共振（ferromagnetic resonance, FMR）現象，以及利用設計於鐵磁/一般金屬雙層薄膜結構上的直流量測導線測量經由逆自旋霍爾效應引致的電荷訊號。zh_TW
dc.description.abstractMy research focuses on the spin pumping effect（SPE）in bilayer structures of ferromagnetic materials（FM）and normal materials（NM）. In our experiment, we choose permalloy（Ni80Fe20, Py）or cobalt（Co）as the FM layer and platinum（Pt）as the NM layer. Ferromagnetic resonance（FMR）in the FM/NM bilayer can induce spin pumping from FM layer to NM layer, and the spin-orbit coupling（SOC）in the platinum layer leads to the inverse spin Hall effect（ISHE）, generating a charge signal. 　　We use coplanar waveguides（CPW）to detect ferromagnetic resonance in FM layer, and designed dc contacts on the bilayer structure to measure charge signals from the inverse spin Hall effect.en_US
dc.description.sponsorship物理學系zh_TW
dc.identifierG060341021S
dc.identifier.urihttp://etds.lib.ntnu.edu.tw/cgi-bin/gs32/gsweb.cgi?o=dstdcdr&s=id=%22G060341021S%22.&%22.id.&
dc.identifier.urihttp://rportal.lib.ntnu.edu.tw:80/handle/20.500.12235/102479
dc.language中文
dc.subject共平面波導zh_TW
dc.subject鐵磁共振zh_TW
dc.subject自旋幫浦效應zh_TW
dc.subject逆自旋霍爾效應zh_TW
dc.subjectcoplanar waveguideen_US
dc.subjectferromagnetic resonanceen_US
dc.subjectspin pumping effecten_US
dc.subjectinverse spin Hall effecten_US
dc.title運用共平面波導探測鐵磁薄膜的鐵磁共振及自旋幫浦效應zh_TW
dc.titleUsing Coplanar Waveguide to Detect Ferromagnetic Resonance and Spin Pumping Effecten_US

Files

Collections

學位論文