Polydomain structure of YBa2Cu3O7 single crystals Osip'yan, Yu. A. ; Afonikova, N. S. ; Emel'Chenko, G. A. ; Parsamyan, T. K. ; Shmyt'ko, I. M. ; Shekhtman, V. Sh. Abstract Publication: Soviet Journal of Experimental and Theoretical Physics Letters Pub Date: September 1987 Bibcode: 1987JETPL..46..241O