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PHYSICS BY SOKRATES T. PANTELIDES IBM Research Division Thomas J. Watson Research Center Yorktown Heights, N.Y. " Are the new high-Tc superconducting materials going to be useful? It has recently been possible to deposit high-quality superconducting films without post-annealing. The deposition temperature is now lowered to approximately 400°C Such temperatures are compatible with semiconductor device processing. S. Witanachchi, H.S. Kwoh, X.W. Wang, D.T. Shaw, Deposition tion of superco

Sokrates Pantelides

PHYSICS

BY SOKRATES T. PANTELIDES
IBM Research Division
Thomas J. Watson Research Center
Yorktown Heights, N.Y.

" Are the new high-Tc superconducting materials going to be useful? It has recently been possible to deposit high-quality superconducting films without post-annealing. The deposition temperature is now lowered to approximately 400°C Such temperatures are compatible with semiconductor device processing.

S. Witanachchi, H.S. Kwoh, X.W. Wang, D.T. Shaw, Deposition tion of superconducting Y-Ba-Cu-O films at 400°C without post-annealing,” Applied Physics Letters, 53 (3), 234-6, 18 July 1988.

" The fascinating world of reduced dimensionality has been converging to a point in the last couple of years. The patterning of microstructures has allowed studies of an electron gas as it is confined in one dimension and then in zero dimensions. Two recent papers zero in on zero dimensions.

C.G. Smith, M. Pepper, H. Ahmed J.E.F. Frost, D.G. Hasko, D.C. Peacock, D.A. Ritchie, G.A.C....

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