Sat, 19 Jul 2008 02:59:32 BST CiteULike: dchen's library [874 articles] http://www.citeulike.org/user/dchen/article/2754601 CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dchen/article/2754601 <i>Physical Review Letters, Vol. 96, No. 20. (2006)</i><br /><br />We report on the observation of an anomalously high damping measured by a vibrating-wire resonator (VWR) immersed into superfluid 3He-B at ultralow temperatures. The observed dissipation is orders of magnitude above that corresponding to friction with the dilute normal fraction and superfluid vortices. A clear pinning behavior is also observed, as well as a strong magnetic field dependence. Our analysis points to the interaction of the VWR with a planar topological defect, analogue to cosmological vacua defects, as proposed by Salomaa and Volovik. Probing “Cosmological” Defects in Superfluid [sup 3]He-B with a Vibrating-Wire Resonator CB Winkelmann J Elbs Yu H Godfrin doi:10.1103/PhysRevLett.96.205301 Physical Review Letters, Vol. 96, No. 20. (2006) 2008-05-04T22:37:24-00:00 2006 Physical Review Letters 96 20 APS 2006 defect focus quench