Media type: E-Article Title: Transition of a pristine Mott insulator to a correlated Fermi liquid: Pressure-dependent optical investigations of a quantum spin liquid Contributor: Li, Weiwu; Pustogow, Andrej; Kato, Reizo; Dressel, Martin Published: American Physical Society (APS), 2019 Published in: Physical Review B, 99 (2019) 11 Language: English DOI: 10.1103/physrevb.99.115137 ISSN: 2469-9950; 2469-9969 Origination: Footnote: