American Physical Society (APS) - online access to current and archival journals APS publishing . 

The following titles are available under the license:

1. Physical Review A, B, C, D i E
2. Physical Review Letters
3. Physical Review X (open access)
4. Physics (2008-to present; open access)
5. Physical Review Special Topics Accelarators and Beams (open access)
6. Physical Review Special Topics Physics Education Research (open access)
7. Physical Review Applied
8. Physical Review Fluids
9. Physical Review Materials
10. Reviews of Modern Physics
11. Surface Science Spectra 
12. and the PROLA package (APS magazine archive)