Chemical control of magnetism: Oxidation-induced ferromagnetic spin coupling in the chromium dimer evidenced by photoelectron spectroscopy

Kensuke Tono; Akira Terasaki; Toshiaki Ohta; Tomatsu Kondow

Chemical control of magnetism: Oxidation-induced ferromagnetic spin coupling in the chromium dimer evidenced by photoelectron spectroscopy

Kensuke Tono, Akira Terasaki, Toshiaki Ohta, Tomatsu Kondow

Research output: Contribution to journal › Article › peer-review

Abstract

Photoelectron spectroscopy and DFT calculation revealed that the antiferromagnetic spin coupling of the Cr-Cr pair in Cr₂^- (S=1/2) is changed to be ferromagnetic by the oxidation of Cr₂^- into Cr₂O^- (S=9/2). The ferromagnetic coupling was induced, as the major case, due to the hybridization of Cr 3d with 0 2p orbitals and, as the minor cause, by the direct Cr-Cr exchange in interaction with the interatomic distance elongated by the oxidation.

Original language	English
Journal	Physical Review Letters
Volume	90
Issue number	13
Publication status	Published - Apr 4 2003
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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title = "Chemical control of magnetism: Oxidation-induced ferromagnetic spin coupling in the chromium dimer evidenced by photoelectron spectroscopy",

abstract = "Photoelectron spectroscopy and DFT calculation revealed that the antiferromagnetic spin coupling of the Cr-Cr pair in Cr2- (S=1/2) is changed to be ferromagnetic by the oxidation of Cr2- into Cr2O- (S=9/2). The ferromagnetic coupling was induced, as the major case, due to the hybridization of Cr 3d with 0 2p orbitals and, as the minor cause, by the direct Cr-Cr exchange in interaction with the interatomic distance elongated by the oxidation.",

author = "Kensuke Tono and Akira Terasaki and Toshiaki Ohta and Tomatsu Kondow",

year = "2003",

month = apr,

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language = "English",

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journal = "Physical Review Letters",

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publisher = "American Physical Society",

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T2 - Oxidation-induced ferromagnetic spin coupling in the chromium dimer evidenced by photoelectron spectroscopy

AU - Tono, Kensuke

AU - Terasaki, Akira

AU - Ohta, Toshiaki

AU - Kondow, Tomatsu

PY - 2003/4/4

Y1 - 2003/4/4

N2 - Photoelectron spectroscopy and DFT calculation revealed that the antiferromagnetic spin coupling of the Cr-Cr pair in Cr2- (S=1/2) is changed to be ferromagnetic by the oxidation of Cr2- into Cr2O- (S=9/2). The ferromagnetic coupling was induced, as the major case, due to the hybridization of Cr 3d with 0 2p orbitals and, as the minor cause, by the direct Cr-Cr exchange in interaction with the interatomic distance elongated by the oxidation.

AB - Photoelectron spectroscopy and DFT calculation revealed that the antiferromagnetic spin coupling of the Cr-Cr pair in Cr2- (S=1/2) is changed to be ferromagnetic by the oxidation of Cr2- into Cr2O- (S=9/2). The ferromagnetic coupling was induced, as the major case, due to the hybridization of Cr 3d with 0 2p orbitals and, as the minor cause, by the direct Cr-Cr exchange in interaction with the interatomic distance elongated by the oxidation.

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