If you are supposed to use the American Physical Society (APS) bib style along with the "Springer Journal" document class, give
\documentclass[sn-aps]{sn-jnl}
a try.
If you wish to use the APS bib style without employing the "Springer Journal" document class, give
\documentclass[<some-options>]{<some-class>}
% ... (other preamble stuff)
\bibliographystyle{sn-aps}
a try. If you pursue this route, you'll probably also have to provide a dummy definition for the macro \bibcommenthead
that's used by the Springer Journal bib styles. E.g., something such as \def\bibcommenthead{}
.
Springer actually provides an email address for answering authors' LaTeX- and BibTeX-related questions. It is LaTeXSupport@spi-global.com
.