Publication:
Electronic and magnetic structures in O/Cr(001) surface from angle-resolved photoemission spectroscopy

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Issued Date

2010

Resource Type

Article

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application/pdf

ISSN

319015

DOI

10.1143/JPSJ.79.104710

Other identifier(s)

2-s2.0-77958060243

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Scopus

Bibliographic Citation

Journal of the Physical Society of Japan. Vol 79, No.10 (2010), p.-

Suggested Citation

Nakajima H., Pukird S., Boonyaratgalin W., Ishii T., Saitoh T., Kakizaki A. Electronic and magnetic structures in O/Cr(001) surface from angle-resolved photoemission spectroscopy. Journal of the Physical Society of Japan. Vol 79, No.10 (2010), p.-. doi:10.1143/JPSJ.79.104710 Retrieved from: https://hdl.handle.net/20.500.14740/7542

Title

Electronic and magnetic structures in O/Cr(001) surface from angle-resolved photoemission spectroscopy

Author(s)

Nakajima H.
 Pukird S.
 Boonyaratgalin W.
 Ishii T.
 Saitoh T.
 Kakizaki A.

Abstract

We measured the angle-resolved photoemission spectra of Cr(001) surface with and without oxygen adsorption to study the surface and interfacial electronic structures in relation to its magnetism. The experimental results show that the surface states and Cr 3d-O 2p interfacial state are found near the Fermi level, and they are responsible to the surface ferromagnetism of Cr(001). The energy band dispersion of this interfacial state indicates the odd symmetry with respect to the mirror plane (010), and originates from the 3dxy-2py antibonding state. It was found that the fully occupied antibonding state leading to the negative surface relaxation results in the enhancement of magnetic moments in O/Cr(001). This magneto-volume effect also realized that the energy band width of O/Cr(001) is at most 50% less than that of clean Cr(001) surface. © 2010 The Physical Society of Japan.

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https://hdl.handle.net/20.500.14740/7542

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