Kondo-like behavior near the magnetic instability in SmB_6: Temperature and pressure dependences of the Sm valence - N. Emi, N. Kawamura, M. Mizumaki, T. Koyama, N. Ishimatsu, G. Pristáš, T. Kagayama, K. Shimizu, Y. Osanai, F. Iga; T. Mito (American Physical Society (APS), 2018)
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