The History of Science, Technology and Medicine (HSTM) is the definitive international bibliographic database for the history of science, technology, and medicine and their influence on culture, from pre-history to the present. It includes materials published from 1975 to the present; for works published prior to 1975, check the Isis Cumulative Bibliography.
Modern scholarly work in physics can be identified through arXiv.
Search these databases as needed, depending on your topic and the focus of your research question. Depending on your particular research question and focus, you may need to consult other databases as well.