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Titolo:
Electronic structure of delafossite-type metallic oxide PdCoO2
Autore:
Hasegawa, M; Higuchi, T; Tanaka, M; Tsukamoto, T; Shin, S; Takei, H;
Indirizzi:
Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan Tohoku Univ Sendai Miyagi Japan 9808577 st, Sendai, Miyagi 9808577, Japan Sci Univ Tokyo, Dept Appl Phys, Tokyo 1628601, Japan Sci Univ Tokyo Tokyo Japan 1628601 Dept Appl Phys, Tokyo 1628601, Japan Toshiba Corp, Semicon Co, Yokohama, Kanagawa 2358581, Japan Toshiba Corp Yokohama Kanagawa Japan 2358581 ama, Kanagawa 2358581, Japan Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan Osaka Univ Toyonaka Osaka Japan 5600043 i, Toyonaka, Osaka 5600043, Japan Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan Univ Tokyo Kashiwa Chiba Japan 2778581 hys, Kashiwa, Chiba 2778581, Japan
Titolo Testata:
MATERIALS TRANSACTIONS
fascicolo: 6, volume: 42, anno: 2001,
pagine: 961 - 964
SICI:
1345-9678(200106)42:6<961:ESODMO>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
BAND THEORY; CHEMISTRY; CUFEO2; PTCOO2; GROWTH;
Keywords:
paradium cobalt oxide; metallic delafossite-type oxide; photoemission and inverse photoemission spectroscopies; electronic structure; electrical resistivity; pseudogap;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Hasegawa, M Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan Tohoku Univ Sendai Miyagi Japan 9808577 Miyagi 9808577, Japan
Citazione:
M. Hasegawa et al., "Electronic structure of delafossite-type metallic oxide PdCoO2", MATER TRANS, 42(6), 2001, pp. 961-964

Abstract

The electronic structure of metallic oxide PdCoO2 has been investigated byphotoemission and inverse photoemission spectroscopies. It is found that the finite density of states at the Fermi level in the spectra is observed at the low photon energy where the ionization cross-section of Pd 4d increases with decreasing photon energy. Resonant photoemission spectra of PdCoO2 at photon energies near the Co 3p to 3d and Pd 4p to 4d absorption thresholds, indicate no density of states at the Fermi level in the partial densityof states of Co 3d, and finite density of states at the Fermi level in thepartial density of states of Pd 4d, respectively. These results indicate that the main contribution to the density of states at the Fermi level is Pd4d and that the low resistivity of PdCoO2 is attributable to the itinerancy of the Pd 4d electrons.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 01:22:48