Phys. Rev. Lett. 86, 712–715 (2001)Superheating and Supercooling of Vortex Matter in a Nb Single Crystal: Direct Evidence for a Phase Transition at the Peak Effect from Neutron Diffraction
See accompanying Physics Focus We report the first observation of a striking history dependence of the structure function of vortex matter in the peak effect regime in a Nb single crystal by using small angle neutron scattering combined with in situ magnetic susceptibility measurements. Metastable phases of vortex matter, supercooled vortex liquid and superheated vortex solid, have been identified. We interpret our results as direct structural evidence for a first-order vortex solid-liquid transition at the peak effect. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.712
DOI:
10.1103/PhysRevLett.86.712
PACS:
74.60.Ge, 61.12.Ex
See AlsoComment: G. P. Mikitik and E. H. Brandt, Comment on “Superheating and Supercooling of Vortex Matter in a Nb Single Crystal: Direct Evidence for a Phase Transition at the Peak Effect from Neutron Diffraction”, Phys. Rev. Lett. 89, 259701 (2002). Reply: X. S. Ling, S. R. Park, B. A. McClain, S. M. Choi, D. C. Dender, and J. W. Lynn, Ling et al. Reply:, Phys. Rev. Lett. 89, 259702 (2002). |
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.