Search

Your search keyword '"C.M. Thakar"' showing total 2 results
Start Over Author "C.M. Thakar" Journal solid state phenomena
2 results on '"C.M. Thakar"'

1. Low Temperature Bond Valence Sum Study of La1.7 Dy0.3 Ca0.6 Ba2 Cu4.6 Oz Oxide Superconductors

Author

Keka R. Chakraborty, P. S. R. Krishna, Nikesh A. Shah, D. G. Kuberkar, M. Ramnadham, J.H. Markana, J.A. Bhalodia, C.M. Thakar, S. Rayaprol, and R. N. Parmar

Subjects
Superconductivity, Valence (chemistry), Materials science, Condensed matter physics, Neutron diffraction, General Materials Science, Condensed Matter Physics, Oxide superconductors, Atomic and Molecular Physics, and Optics
Abstract

Bond Valence Sum (BVS) calculations were performed on neutron diffraction (ND) data measured at 12, 35, 55, 75 and 300 K on one sample (x = 0.3), of a series of La2-xDyxCa2xBa2Cu4+2xOz (La-2125) compounds. ND experiments have been carried out to study the effect of temperature on structure and to relate it with the superconducting properties. The sample, La1.7Dy0.3Ca0.6Ba2Cu4.6Oz (LD3) has been reported earlier, and exhibits superconductivity at 68 K. In this paper we discuss BVS calculations carried out on low temperature neutron diffraction data.

Published
2006
Full Text
View/download PDF

2. Estimation of Self-Injection Length in Heterostructures of YBa2Cu3O7-δ Superconductor and La0.67Ca0.33MnO3 Manganite

Author

C.M. Thakar, S. Wanchoo, T. Bannerjee, S.K. Malik, and S. Khatua

Subjects
Length scale, Superconductivity, Materials science, Condensed matter physics, Spintronics, Magnetism, General Materials Science, Heterojunction, Condensed Matter Physics, Epitaxy, Manganite, Atomic and Molecular Physics, and Optics, Pulsed laser deposition
Abstract

Epitaxial bilayers of YBa2Cu3O7-δ (YBCO) and La0.67Ca0.33MnO3 (LCMO) heterostructures have been prepared by pulsed laser deposition technique, the growth sequence being YBCO on LCMO. The length scale of the YBCO layer, which is rendered non-superconductor/insulator by selfinjection of the spin polarized quasiparticles, is estimated to be 850Å. This can be an important guiding parameter in spintronic device configuration/fabrication.

Published
2006
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results