Vanadium-induced decrease in the magnetization of a VxCo1-x alloy film on the W(110) surface
- Authors
- Lee, Hangil
- Issue Date
- Jul-2013
- Publisher
- ELSEVIER
- Keywords
- SRPES; Magnetic phase transition; Structural phase transition; LEED; Alloy film
- Citation
- CURRENT APPLIED PHYSICS, v.13, no.5, pp 826 - 829
- Pages
- 4
- Journal Title
- CURRENT APPLIED PHYSICS
- Volume
- 13
- Number
- 5
- Start Page
- 826
- End Page
- 829
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/11254
- DOI
- 10.1016/j.cap.2012.11.020
- ISSN
- 1567-1739
1878-1675
- Abstract
- The magnetic and structural properties of a series of VxCo1-x alloy films prepared in a variety of compositions on a W(110) surface were investigated using spin-resolved photoemission spectroscopy (SRPES) and low-energy electron diffraction (LEED) measurements. The epitaxial structures of the films were preserved over all V concentrations, despite the observation of a structural phase transition (SPT: hcp/bcc at x = 0.38), which was apparent from the LEED images. A magnetic phase transition (MPT) from ferromagnetic to paramagnetic occurred in the Co-rich region at x = 0.38. The SPT (from hcp and bcc) and MPT (from ferromagnetic to paramagnetic) were clearly correlated at x 0.38, possibly due to changes in the electronic and magnetic structures of the valence band, as monitored by SRPES and LEED. The magnetization in the VxCo1-x alloy films on a W(110) surface varied systematically with the V concentration, and correlations between the structural changes and magnetic properties were revealed using SRPES and LEED. (C) 2012 Elsevier B. V. All rights reserved.
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