D. D. Berkeley, Joonhee Kang, J. Wan
Jan 30, 1988
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Thin Solid Films
Abstract
Abstract Films of lanthanum sulfide were prepared by vapor deposition of the separate constituents onto heated sapphire substrates. The technique can be used to produce films over the entire range of composition from La 2 S 3 , which is an insulator, to La 3 S 4 which is a metal and a superconductor. This family of materials shows promise for use in three-terminal superconducting devices based on the metal field effect.