ملخص
Otto configuration attenuated total reflection (ATR) measurements of the excitation of surface plasmons in the infrared have been carried out on YBCO films deposited on MgO (100) substrates. The dielectric constants for YBCO at 3.392 μm are determined to be -10+15i for c-axis material. The anisotropic nature of the cuprate is seen from films with other orientations: nearly a-axis material has constants of 4.0+7.0i. It is thus not metallic in its optical response along the c-axis which lies parallel to the substrate plane. Ellipsometric measurements in the visible on c-axis material point to a maximum surface plasmon energy of 1 eV.
اللغة الأصلية | English |
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الصفحات (من إلى) | 943-946 |
عدد الصفحات | 4 |
دورية | Journal of Superconductivity |
مستوى الصوت | 7 |
رقم الإصدار | 6 |
المعرِّفات الرقمية للأشياء | |
حالة النشر | Published - ديسمبر 1994 |
ASJC Scopus subject areas
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