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Volumn 69, Issue 21, 2004, Pages

Oxygen phonon branches in YBa2Cu3O7

Author keywords

[No Author keywords available]

Indexed keywords

BARIUM DERIVATIVE; COPPER DERIVATIVE; OXYGEN; YTTRIUM;

EID: 37649026560     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevB.69.214506     Document Type: Article
Times cited : (77)

References (34)
  • 1
    • 0001589102 scopus 로고    scopus 로고
    • edited by A. Furrer, Phys. and Chem. of Materials with Low-Dim. Structures, (Kluwer Academic, Dordrecht)
    • L. Pintschovius and W. Reichardt, in Neutron Scattering in Layered Copper-Oxide Superconductors, edited by A. Furrer, Phys. and Chem. of Materials with Low-Dim. Structures, Vol. 20 (Kluwer Academic, Dordrecht, 1998), p. 165.
    • (1998) Neutron Scattering in Layered Copper-Oxide Superconductors , vol.20 , pp. 165
    • Pintschovius, L.1    Reichardt, W.2
  • 5
    • 0009384295 scopus 로고
    • B. Renker et al., Z. Phys. B: Condens. Matter 67, 15 (1987); 71, 437 (1988); 73, 309 (1988).
    • (1988) Z. Phys. B: Condens. Matter , vol.71 , pp. 437
  • 6
    • 0000640734 scopus 로고
    • B. Renker et al., Z. Phys. B: Condens. Matter 67, 15 (1987); 71, 437 (1988); 73, 309 (1988).
    • (1988) Z. Phys. B: Condens. Matter , vol.73 , pp. 309
  • 17
    • 0037287780 scopus 로고    scopus 로고
    • cond-mat/0105593 (unpublished)
    • R.J. McQueeney et al., cond-mat/0105593 (unpublished); J.-H. Chung et al., Phys. Rev. B 67, 014517 (2003).
    • McQueeney, R.J.1
  • 18
    • 0037287780 scopus 로고    scopus 로고
    • R.J. McQueeney et al., cond-mat/0105593 (unpublished); J.-H. Chung et al., Phys. Rev. B 67, 014517 (2003).
    • (2003) Phys. Rev. B , vol.67 , pp. 014517
    • Chung, J.-H.1
  • 19
    • 0037766233 scopus 로고    scopus 로고
    • A brief account of the early results of this study was given in D. Reznik et al., J. Low Temp. Phys. 131, 417 (2003). The strong temperature dependence of particular phonons described in Ref. 17 was not yet discovered at the time of this publication.
    • (2003) J. Low Temp. Phys. , vol.131 , pp. 417
    • Reznik, D.1
  • 23
    • 33646654974 scopus 로고    scopus 로고
    • note
    • We note that there is a systematic difference between the data of Ref. 15 and our data of about 1 meV which we attribute to a slightly different calibration of the neutron spectrometers. Our calibration is supported by the good agreement with the optical data of Ref. 21.
  • 25
    • 33646665525 scopus 로고    scopus 로고
    • note
    • We completely agree with Ref. 15 with regard to the a-b anisotropy of the zone-center bond stretching modes. On the other hand, we disagree with Ref. 15 with regard to the anisotropy of the softening at the zone edge: we find that the frequencies are more strongly renormalized in the b direction than in the a direction. We note that the a axis zone boundary mode at E = 66 meV was ignored in Ref. 15 when evaluating the a-b anisotropy-in spite of the correct observation that this mode carries an appreciable spectral weight. This leads to a substantial overestimate of the renormalization along a.
  • 27
    • 33646663093 scopus 로고    scopus 로고
    • note
    • We note that the tentative assignment of weak peaks observed in Ref. 15 at energies ≈70 meV and ≈61 meV, respectively, to the chain O modes and to c-axis displacements of apical O has to be interchanged.
  • 29
    • 0001374372 scopus 로고    scopus 로고
    • C. Falter, M. Klenner, G.A. Hoffmann, and Q. Chen, Phys. Rev. B 55, 3308 (1997); C. Falter and G.A. Hoffmann, ibid. 61, 14 537 (2000).
    • (2000) Phys. Rev. B , vol.61
    • Falter, C.1    Hoffmann, G.A.2
  • 31
    • 33646658836 scopus 로고    scopus 로고
    • cond-mat/0308035 (unpublished)
    • O. Rösch and O. Gunnarsson, cond-mat/0308035 (unpublished).
    • Rösch, O.1    Gunnarsson, O.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.