TY - JOUR A1 - Windt, M. A1 - Grüninger, M. A1 - Nunner, Tamara A1 - Knetter, C. A1 - Schmidt, K. P. A1 - Uhrig, G. S. A1 - Kopp, Thilo A1 - Freimuth, A. A1 - Ammerahl, U. A1 - Büchner, B. A1 - Revcolevschi, A. T1 - Observation of Two-Magnon Bound States in the Two-Leg Ladders of(Ca,La)14Cu24O41 T2 - Physical Review Letters Y1 - 2001 UR - https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/41591 SN - 0031-9007 SN - 1079-7114 VL - 87 IS - 12 SP - 127002 PB - American Physical Society (APS) ER -