Optical spectra of YBa{sub 2}Cu{sub 3}O{sub 7} monocrystalline films on Li{sub 2}B{sub 4}O{sub 7} (001) substrates in the 0.2-6 eV spectral range

Journal Article · Wed Dec 01 00:00:00 EST 1993 · Optics and Spectroscopy

OSTI ID:105431

Kityk, I V; Burak, Ya V; Lutsiv, R V; Mervinskii, R I; Roter, V E ^[1]

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1. Franko Lvov State Univ. (Ukraine)

Studies of YBa{sub 2}Cu{sub 3}O{sub 7} films on Li{sub 2}B{sub 4}O{sub 7} substrates showed that the excitation energy of plasmons related to free carriers is weakly anisotropic in the ab plane. The corresponding splitting (0.16 eV) is far less than that in crystals ({approx_equal}0.58 eV). The splitting of plasmons related to the valence electrons lies within 0.05-0.10 eV. The plasmon energies in films and in crystals are shifted by 0.5 eV. 8 refs., 2 figs.

• OSTI ID: 105431
• Journal Information: Optics and Spectroscopy, Vol. 75, Issue 6; Other Information: PBD: Dec 1993; TN: Translated from Optika i Spektroskopiya; 75, 1267-1271(Dec 1993)
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
36 MATERIALS SCIENCE
YTTRIUM COMPOUNDS
X-RAY SPECTROSCOPY
BARIUM COMPOUNDS
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
SUPERCONDUCTING FILMS
LITHIUM COMPOUNDS
BORON OXIDES
PLASMONS
ANISOTROPY