INVESTIGATIONS FOR THE EXISTENCE OF AN IRON-OXIDE LAYER AT THE MGO/FE INTERFACE
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- Title
- INVESTIGATIONS FOR THE EXISTENCE OF AN IRON-OXIDE LAYER AT THE MGO/FE INTERFACE
- Authors
- Khim, TY; Rho, KJ; Lee, H; Kim, JY; Park, JH
- Date Issued
- 2008-08
- Publisher
- KOREAN PHYSICAL SOC
- Abstract
- We have investigated the possibility of an interface between MgO and Fe films to explore the existence of ail oxide layer at the MgO/Fe interface as a preliminary system of Fe/MgO/Fe magnetic tunnel junctions. By using photoemission spectroscopy and X-ray absorption spectroscopy, we found that no iron-oxide layer existed at the interface for the in-situ-grown epitaxial MgO(001)/Fe(001) bilayer on a W(001) substrate. Moreover, we showed that metal Mg could revivify the iron-oxide to metal Fe when MgO was formed. These results show we can make iron-oxide-free samples in the Mg-rich growth condition.
- Keywords
- Spectroscopy; film; interface; MTJ; TMR; MgO; MAGNETIC TUNNEL-JUNCTIONS; ROOM-TEMPERATURE; MAGNETORESISTANCE; FILMS; XPS; FE
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/28224
- DOI
- 10.3938/jkps.53.1079
- ISSN
- 0374-4884
- Article Type
- Article
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, vol. 53, no. 2, page. 1079 - 1083, 2008-08
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