J. Phys. I France
Volume 6, Numéro 12, December 1996
Page(s) 1567 - 1574
DOI: 10.1051/jp1:1996174
J. Phys. I France 6 (1996) 1567-1574

Twin Boundary in Bechgaard Salt: Structure and Unusual Dynamics

M. Mukoujima, K. Kawabata and T. Sambongi

Department of Physics, Hokkaido University, Sapporo 060, Japan

(Received 26 April 1996, revised 8 July 1996, accepted 26 August 1996)

Structure and dynamics of twin boundaries in (TMTSF) 2PF 6 were studied. From microscopic observations, they are planar in shape and their width is less than 20 mm. No change in their shape was found. Their movement and pair annihilation do not leave any trace in the crystal surface. Their motion under external force as well as spontaneous movement are intermittent and chaotic. Role of internal degree of freedom is essential.

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