11 papers
Microwave properties of superconducting
N. Hakim, P. V. Parimi, C. Kusko +4
Measurements of the microwave surface resistance of dense wire and pellet are reported. Significant improvements are observed in the wire with reduction of porosi…
Onset of dielectric modes at 110K and 60K due to local lattice distortions in non-superconducting YBa_{2}Cu_{3}O_{6.0} crystals
Z. Zhai, P. V. Parimi, J. B. Sokoloff +2
We report the observation of two dielectric transitions at 110K and 60K in the microwave response of non-superconducting YBa_{2}Cu_{3}O_{6.0} crystals. The transitions are characte…
Non-quasiparticle microwave absorption in
S. Sridhar, Z. Zhai
We show that a non-quasiparticle charge collective mode, in parallel and coincident with the d-wave pair conductivity, leads to a quantitative understanding of microwave surface im…
Non-linear microwave impedance of short and long Josephson Junctions
Z. Zhai, Patanjali V. Parimi, S. Sridhar
The non-linear dependence on applied field () or current () of the microwave (ac) impedance of both short and long Josephson junctions is calculated und…
High frequency magneto-impedance of double perovskite : secondary transitions at high temperatures
P. V. Patanjali, P. Theule, Z. Zhai +6
Radio frequency magneto-impedance measurements clearly reveal a pronounced anomaly at 260K besides the main MI transition at 125K in the double perovskite material $La_{1.2}Sr_{1.8…
Magneto-electrodynamics at high frequencies in the antiferromagnetic and superconducting states of DyNi_2B_2C
Durga P. Choudhury, H. Srikanth, S. Sridhar +1
We report the observation of novel behaviour in the radio frequency (rf) and microwave response of DyNi_2B_2C over a wide range of temperature (T) and magnetic field (H) in the ant…