TY  - JOUR
A1  - Grüninger, Markus
A1  - van der Marel, D.
A1  - Damascelli, A.
A1  - Erb, A.
A1  - Nunner, Tamara
A1  - Kopp, Thilo
T1  - Midinfrared absorption in YBa2Cu3O6: Evidence for a failure of spin-wave theory for spin 1/2 in two dimensions
T2  - Physical Review B
Y1  - 2000
UR  - https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/41588
SN  - 0163-1829
SN  - 1095-3795
VL  - 62
IS  - 18
SP  - 12422
EP  - 12426
PB  - American Physical Society (APS)
ER  -