Sn 5s2 lone pairs and the electronic structure of tin sulphides: A photoreflectance, high-energy photoemission, and theoretical investigation

Leanne A.H. Jones, Wojciech M. Linhart, Nicole Fleck, Jack E.N. Swallow, Philip A.E. Murgatroyd, Huw Shiel, Thomas J. Featherstone, Matthew J. Smiles, Pardeep K. Thakur, Tien Lin Lee, Laurence J. Hardwick, Jonathan Alaria, Frank Jäckel, Robert Kudrawiec, Lee A. Burton, Aron Walsh, Jonathan M. Skelton, Tim D. Veal, Vin R. Dhanak