[Th-L] Poster Session

[Th-L-22] Experimental evidence for an s+is superconductivity in Ba_1-xK_xFe₂As₂

*Vadim Grinenko^1,2, Rajib Sarkar¹, Kunihiro Kihou³, Chul-Ho Lee³, Igor Morozov⁴, Saicharan Aswartham², Bernd Büchner ², Paul Chekhonin^2,1, Werner Skrotzki¹, Konstantin Nenkov², Ruben Hühne², Kornelius Nielsch², Dmitriy V Efremov², Stefan-Ludwig Drechsler², Vasiliy L Vadimov⁵, Mihail Silaev ⁶, Pavel Volkov^7,8, Ilya Eremin⁷, Hubertus Luetkens⁹, Hans-Henning Klauss¹ (1. TU Dresden(Germany), 2. IFW Dresden(Germany), 3. National Institute of Advanced Industrial Science and Technology (AIST)(Japan), 4. Lomonosov Moscow State University(Russia), 5. Institute for Physics of Microstructures(Russia), 6. University of Jyväskylä(Finland), 7. Ruhr-Universitat Bochum(Finland), 8. Rutgers University(United States of America), 9. Paul Scherrer Institute (PSI)(Switzerland))

キーワード：multi-band superconductivity, broken time-reversal symmetry, pnictides, Lifshitz transition