title: Large low-frequency fluctuations in the velocity of a driven vortex lattice in a single crystal of 2H-NbSe2 superconductor.
abstract: The driven state of a well-ordered flux line lattice in a single crystal of 2H-NbSe2 in the time domain has revealed the presence of substantial fluctuations in velocity, with large and distinct time periods ( approximately seconds). A superposition of a periodic drive in the driven vortex lattice causes distinct changes in these fluctuations. We propose that prior to the onset of the peak effect there exists a heretofore unexplored regime of coherent dynamics, with unexpected behavior in velocity fluctuations.
authors.affiliation: Department of Physics, Indian Institute of Technology, Kanpur-208016, India.
authors.forename: Shyam
authors.initials: S
authors.lastname: Mohan
authors.forename: Jaivardhan
authors.initials: J
authors.lastname: Sinha
authors.forename: S S
authors.initials: SS
authors.lastname: Banerjee
authors.forename: A K
authors.initials: AK
authors.lastname: Sood
authors.forename: S
authors.initials: S
authors.lastname: Ramakrishnan
authors.forename: A K
authors.initials: AK
authors.lastname: Grover