TY - JOUR
T1 - Ca doped YBCO films in THz frequency range
AU - Färber, E.
AU - Bachar, N.
AU - Castro, H.
AU - Zhukova, E.
AU - Gorshunov, B.
PY - 2012
Y1 - 2012
N2 - Ca doped YBaCuO thin films were investigated using frequency and time domain THz spectroscopy. A non-monotonic behavior was observed in with a maximum at about 1.8 meV and 1.2 meV depending on Ca concentration. Two batches of thin films 500-600Å thick where used; one of 5% and the other of 10% Ca concentration. The films show a clear c-axis orientation and 77K for the 5% Ca and 10% Ca respectively. Both thin film batches show a decrease in plasma frequency as temperature increases and superconducting transition is approached. The quasiparticles scattering rate decreases in the normal state and drops when Tc is approached. The imaginary part of the conductivity was found to be proportional to 1/ω, known from the delta-function response.
AB - Ca doped YBaCuO thin films were investigated using frequency and time domain THz spectroscopy. A non-monotonic behavior was observed in with a maximum at about 1.8 meV and 1.2 meV depending on Ca concentration. Two batches of thin films 500-600Å thick where used; one of 5% and the other of 10% Ca concentration. The films show a clear c-axis orientation and 77K for the 5% Ca and 10% Ca respectively. Both thin film batches show a decrease in plasma frequency as temperature increases and superconducting transition is approached. The quasiparticles scattering rate decreases in the normal state and drops when Tc is approached. The imaginary part of the conductivity was found to be proportional to 1/ω, known from the delta-function response.
UR - http://www.scopus.com/inward/record.url?scp=84873649828&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/400/2/022018
DO - 10.1088/1742-6596/400/2/022018
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AN - SCOPUS:84873649828
SN - 1742-6588
VL - 400
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - PART 2
M1 - 022018
T2 - 26th International Conference on Low Temperature Physics, LT 2011
Y2 - 10 August 2011 through 17 August 2011
ER -