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Titolo:
DETERMINATION OF ELECTRONIC BAND STRUCTURES OF CAMNO3 AND LAMNO3 USING OPTICAL-CONDUCTIVITY ANALYSES
Autore:
JUNG JH; KIM KH; EOM DJ; NOH TW; CHOI EJ; YU JJ; KWON YS; CHUNG Y;
Indirizzi:
SEOUL NATL UNIV,DEPT PHYS SEOUL 151742 SOUTH KOREA SEOUL CITY UNIV,DEPT PHYS SEOUL 130743 SOUTH KOREA SOGANG UNIV,DEPT PHYS SEOUL 121742 SOUTH KOREA SUNG KYUN KWAN UNIV,DEPT PHYS SUWON 440746 SOUTH KOREA POHANG INST SCI & TECHNOL,POHANG ACCELERATOR LAB POHANG 790784 SOUTH KOREA
Titolo Testata:
Physical review. B, Condensed matter
fascicolo: 23, volume: 55, anno: 1997,
pagine: 15489 - 15493
SICI:
0163-1829(1997)55:23<15489:DOEBSO>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
RAY-ABSORPTION-SPECTROSCOPY; DOUBLE-EXCHANGE; LA1-XSRXMNO3; RESISTIVITY; SPECTRA; MN; FE; CO; NI;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
19
Recensione:
Indirizzi per estratti:
Citazione:
J.H. Jung et al., "DETERMINATION OF ELECTRONIC BAND STRUCTURES OF CAMNO3 AND LAMNO3 USING OPTICAL-CONDUCTIVITY ANALYSES", Physical review. B, Condensed matter, 55(23), 1997, pp. 15489-15493

Abstract

Reflectivity spectra of CaMnO3 and LaMnO3 were measured in a wide photon energy region between 5 meV and 30 eV at room temperature. Using the conductivity spectra obtained from the Kramers-Kronig analysis, electronic structures of the manganese oxides were investigated. In particular, the states near the Fermi energy E-F, O 2p and Mn 3d (e(g),t(2g)), were studied in detail. It was found that the O 2p band is locatedcloser to E-F than the Mn t(2g) band. For LaMnO3, the filled Mn e(g up arrow)(1) band is located closer to E-F than any other valence band. The t(2g)-e(g) Hund exchange energy was found to be about 3.4 eV and the Jahn-Teller stabilization energy E-0 was estimated to be less than0.5 eV.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/09/18 alle ore 01:41:37