40 citations · 110 across the 9 of their papers we have counts for
9 papers
Structural studies of metastable and equilibrium vortex lattice domains in MgB2
E. R. Louden, A. W. D. Leishman, C. Rastovski +5
The vortex lattice in MgB2 is characterized by the presence of long-lived metastable states, which arise from cooling or heating across the equilibrium phase boundaries. A return t…
Non-equilibrium structural phase transitions of the vortex lattice in MgB2
E. R. Louden, C. Rastovski, L. DeBeer-Schmitt +3
We have studied non-equilibrium phase transitions in the vortex lattice in superconducting MgB2, where metastable states are observed in connection with an intrinsically continuous…
Structural Transition Kinetics and Activated Behavior in the Superconducting Vortex Lattice
E. R. Louden, C. Rastovski, S. J. Kuhn +5
Using small-angle neutron scattering, we investigated the behavior of a metastable vortex lattice state in MgB2 as it is driven towards equilibrium by an AC magnetic field. This sh…
Persistence of Metastable Vortex Lattice Domains in MgB2 in the Presence of Vortex Motion
C. Rastovski, K. J. Schlesinger, W. J. Gannon +5
Recently, extensive vortex lattice metastability was reported in MgB2 in connection with a second-order rotational phase transition. However, the mechanism responsible for these we…
Anisotropy of the Superconducting State in Sr2RuO4
C. Rastovski, C. D. Dewhurst, W. J. Gannon +6
Despite intense studies the exact nature of the order parameter in superconducting Sr2RuO4 remains unresolved. We have used small-angle neutron scattering to study the vortex latti…
Temperature Dependence of the Magnetic Penetration Depth and Nodal Gap Structure of UPt from Small Angle Neutron Scattering
W. J. Gannon, W. P. Halperin, C. Rastovski +7
Spanning a broad range of physical systems, complex symmetry breaking is widely recognized as a hallmark of competing interactions. This is exemplified in superfluid He which h…
Field Dependence of the Superconducting Basal Plane Anisotropy of TmNi2B2C
P. Das, J. M. Densmore, C. Rastovski +7
The superconductor TmNi2B2C possesses a significant four-fold basal plane anisotropy, leading to a square Vortex Lattice (VL) at intermediate fields. However, unlike other members…
Magnetization in the Superconducting State of UPt from Polarized Neutron Diffraction
W. J. Gannon, W. P. Halperin, C. Rastovski +3
The heavy fermion superconductor UPt is thought to have odd-parity, a state for which the temperature dependence of the spin susceptibility is an important signature. In order…
Metastable Vortex Lattice Phases in Superconducting MgB2
P. Das, C. Rastovski, T. R. O'Brien +6
The vortex lattice (VL) symmetry and orientation in clean type-II superconductors depends sensitively on the host material anisotropy, vortex density and temperature, frequently le…