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Digitale Medien

Neutron and Raman Scattering Studies of Hgba2CuO4+δ (1998)

Liou, S. H. ; Li, R. ; Cai, Q. ; [weitere]

Springer

Journal of superconductivity 11 (1998), S. 59-62

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Details

ISSN: 1572-9605

Schlagwort(e): Raman scattering ; Neutron diffraction ; Superconductors

Quelle: Springer Online Journal Archives 1860-2000

Thema: Elektrotechnik, Elektronik, Nachrichtentechnik , Physik

Notizen: Abstract The HgBa2CuO4+δ sample was characterized by Neutron diffraction and magnetic measurements. Both of the measurements indicate a high purity of the sample. Raman measurement was performed on a HgBa2CuO4+δ compound of Tc = 96 K. The apical oxygen vibration at 592 cm−1 was found to show (a) an above Tc anomaly, and (b) frequency hardening and linewidth broadening below the superconducting phase transition. The latter is attributed to the coupling of the phonon to the electronic excitation and related to the opening of the superconducting gap below the phonon frequency.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1023/A:1022677711855

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