[Tu-L] Poster Session

[Tu-L-09] Fostering Superconductivity by Doping Valence-Skipping Indium into Simple Polar IV – VI Semiconductors

*Markus Kriener¹, M. Kamitani¹, T. Koretsune^1,2, S. Bahramy^1,3, M. Sakano³, R. Yukawa⁴, K. Horiba⁴, H. Kumigashira⁴, K. Ishizaka^1,3, R. Arita^1,3, Y. Tokura^1,3, Y. Taguchi^1,3 (1. RIKEN Center for Emergent Matter Science (CEMS), Wako(Japan), 2. Department of Physics, Tohoku University, Sendai(Japan), 3. Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo(Japan), 4. Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki(Japan))

キーワード：polar superconductivity, negative-U mechanism, valence-skipping elements, valence fluctuations, enhancement of superconducting Tc