A pr 2 01 9 Anisotropic upper critical field of pristine and proton-irradiated single crystals of the magnetically ordered superconductor

M. P. Smylie, 2, ∗ A. E. Koshelev, K. Willa, 3 R. Willa, 4 W.-K. Kwok, J.-K. Bao, D. Y. Chung, M. G. Kanatzidis, 5 J. Singleton, F. F. Balakirev, H. Hebbeker, P. Niraula, E. Bokari, A. Kayani, and U. Welp Materials Science Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois 60439 Department of Physics and Astronomy, Hofstra University, Hempstead, New York 11549 Institute for Solid-State Physics, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany Institute for Theory of Condensed Matter, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany Department of Chemistry, Northwestern University, Evanston, Illinois, 60208, USA National High Magnetic Field Laboratory, Los Alamos National Laboratory, MS-E536, Los Alamos, New Mexico 87545 Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008 (Dated: April 17, 2019)