High temperature superconducting materials hold great
promise in applications ranging from large superconducting
magnets to small SQUID magnetometers. However, achieving
high critical current densities remains a formidable
challenge. Our research focuses on the study of nucleation
and growth phenomena in superconducting thin films,
and their effect on the formation of defects such
as grain boundaries and second-phase precipitates.
The understanding of the effect of processing on the
structure and the subsequent electrical property is
necessary to fully exploit these superconducting thin
films for practical electronic applications.
A. Anderson, MIT Lincoln Labs
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of the articles
D. Bhatt, S. N. Basu, A. C. Westerheim and Alfredo
C. Anderson, "Microstructural Dependence of Sputtered
on Deposition Parameters", Physica C 222 (3/4),
A. C. Westerheim, Alfredo
C. Anderson, D. E. Oats, S. N. Basu, D. Bhatt and
M. J. Cima, "Relation Between Electrical Properties
and Microstructure of YBa2Cu3O7-xThin
Films Deposited by Single-Target Off-Axis Sputtering",
J. Appl. Physics 75 (1), 393 (1994).
A. C. Westerheim, P. McIntyre, S. N. Basu, D. Bhatt,
L. S. Yu-Jahnes, Alfredo C. Anderson and M. J. Cima,
"Comparison of the Surface Morphology and Microstructure
of In Situ and Ex Situ Derived YBa2Cu3O7-xThin
Films", J. Elect. Mat. 22 (9), 1113 (1993).
S. N. Basu, "A Study of Microstructures of YBa2Cu3O7-xThin
Films", Proceedings of the International Conference
on Beam Processing of Advanced Materials, J. Singh
and S. M. Copley eds., TMS, pp 333 (1993).
S. N. Basu, T. E. Mitchell
and M. Nastasi, "Electron Beam Irradiation Effects
in Bulk YBa2Cu3O7-x",
J. Appl. Physics 69 (5), 3167 (1991).
S. N. Basu, A. H. Carim and
T. E. Mitchell, "A TEM Study of Microstructures
Films Deposited in LaAlO3 by
Laser Ablation", J. Materials Research 6 (9),
MIT Lincoln Labs - TEM Investigation of Superconducting
Thin Films and Multilayers (with A. Anderson).
LANL - Structure of Ferroelectric Superconducting