TY - GEN
T1 - Surface physical property of the CrO 2 thin films prepared using a closed chemical vapor deposition method
AU - Muraoka, Y.
AU - Yoshida, S.
AU - Wakita, T.
AU - Hirai, M.
AU - Yokoya, T.
N1 - Funding Information:
The authors thank J. Takada and T. Fujii for XRD measurement. The bulk sensitive photoemission experiment at SPring-8 was performed with the approval of Japan Synchrotron Radiation Research Institute (Proposal No. 2010A1520). This research was supported by Japan Science and Technology Corporation (JST), CREST and a Grant-in Aid for Scientific Research (No. 20540356 and No. 23540410) from the Japan Society for the Promotion of Science.
PY - 2012
Y1 - 2012
N2 - We have examined the intrinsic surface physical property of a CrO 2 thin film by means of surface sensitive photoemission spectroscopy. Epitaxial thin film of CrO 2(100) has been grown on TiO 2(100) by a closed chemical vapor deposition method using a Cr 8O 21 precursor. Low-energy electron diffraction (LEED) observations find that epitaxial growth of rutile-phase CrO 2 occurs to the top monolayer of the film. Surface sensitive x-ray photoemission spectroscopy (XPS) measurements show a finite intensity in the region of the Fermi energy. The result evidences that the physical nature of near topmost layer of CrO 2 thin film is metallic. Progress of understanding of the surface physical property of CrO 2 thin film helps not only perform a reliable photoemission study to understand the physics of ferromagnetic metal in CrO 2, but also develop the CrO 2-based devices using a half-metallic nature for spintronics applications.
AB - We have examined the intrinsic surface physical property of a CrO 2 thin film by means of surface sensitive photoemission spectroscopy. Epitaxial thin film of CrO 2(100) has been grown on TiO 2(100) by a closed chemical vapor deposition method using a Cr 8O 21 precursor. Low-energy electron diffraction (LEED) observations find that epitaxial growth of rutile-phase CrO 2 occurs to the top monolayer of the film. Surface sensitive x-ray photoemission spectroscopy (XPS) measurements show a finite intensity in the region of the Fermi energy. The result evidences that the physical nature of near topmost layer of CrO 2 thin film is metallic. Progress of understanding of the surface physical property of CrO 2 thin film helps not only perform a reliable photoemission study to understand the physics of ferromagnetic metal in CrO 2, but also develop the CrO 2-based devices using a half-metallic nature for spintronics applications.
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U2 - 10.1557/opl.2012.177
DO - 10.1557/opl.2012.177
M3 - Conference contribution
AN - SCOPUS:84864982954
SN - 9781605113838
T3 - Materials Research Society Symposium Proceedings
SP - 17
EP - 22
BT - Functional Metal Oxide Nanostructures
T2 - 2011 MRS Fall Meeting
Y2 - 28 November 2011 through 2 December 2011
ER -