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Volumn 91, Issue 3, 2003, Pages

Evidence for two types of low-energy charge transfer excitations in Sr2CuO3

Author keywords

[No Author keywords available]

Indexed keywords

CHARGE TRANSFER; COMPUTER SIMULATION; COPPER COMPOUNDS; ELECTRIC INSULATING MATERIALS; ELECTRON ENERGY LEVELS; ELECTRON ENERGY LOSS SPECTROSCOPY; ELECTRONIC STRUCTURE; ENERGY GAP; GROUND STATE; HAMILTONIANS; MOLECULAR STRUCTURE; ONE DIMENSIONAL;

EID: 0041384280     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article
Times cited : (43)

References (26)
  • 8
    • 85088491769 scopus 로고    scopus 로고
    • note
    • 2h symmetry, only, and one should distinguish between OCE involving "side-" from those with "in-chain" O sites. Two different O sites have been observed in O 1s x-ray absorption spectra [9]. There are also slightly differnt Cuo-O bond lengths and transfer intergrals [10].
  • 12
  • 14
    • 0000673843 scopus 로고    scopus 로고
    • C. Dürr et al., Phys. Rev. B 63, 014505 (2000).
    • (2000) Phys. Rev. B , vol.63 , pp. 014505
    • Dürr, C.1
  • 15
    • 0042958034 scopus 로고    scopus 로고
    • note
    • u(σ) configurations.
  • 16
    • 0037193403 scopus 로고    scopus 로고
    • note
    • 3 by M. Z. Hasan et al., Phys. Rev. Lett. 88, 177403 (2002). There, a slightly higher dispersion of charge excitations ≈ 1 eV has been found (compare with ≈ 0.7 eV in our EELS data). Probably due to the smaller resolution the O 2pπ related nondispersive shoulder seen in EELS near 2.2 eV (see Fig. 1) could not be resolved.
    • (2002) Phys. Rev. Lett. , vol.88 , pp. 177403
    • Hasan, M.Z.1
  • 24
    • 85088488653 scopus 로고    scopus 로고
    • note
    • 2(pd) one (see Ref. [7]) which is seen within in-chain response near 4.5 eV.
  • 25
    • 0041455043 scopus 로고    scopus 로고
    • note
    • 3 [26]. The large dipole moment d between excited S and P excitons estimated above is important in explaining the NLO effects.
  • 26
    • 0000857055 scopus 로고    scopus 로고
    • note
    • M. Imada et al., Rev. Mod. Phys. 70, 1039 (1998). Thin film absorption in ⊥ response [3] shows a peak near 3.2 eV at variance with these data and EELS. Anyhow, it cannot be described within the usual pdσ model, too.
    • (1998) Rev. Mod. Phys. , vol.70 , pp. 1039
    • Imada, M.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.