Abstract
A recent theoretical calculation by Papaconstantopoulos predicted superconductivity in platinum hydride, possibly with a rather high critical temperature (about 10 K as in PdH). We have produced PtH x ( x ⩽ 4.00) by ion-implantation, and find no evidence for superconductivity above 1.7 K. Residual resistivity measurements indicate that (in contrast to previous results on NiH x and PdH x ) the Pt monohydride is not formed. We have considered the possibility that the dihydride might be formed.
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