Vortex-lattice transitions in YNi2B2C: Nature of the 45-degree reorientation
UNSPECIFIED. (2002) Vortex-lattice transitions in YNi2B2C: Nature of the 45-degree reorientation. PHYSICAL REVIEW B, 66 (1). -. ISSN 1098-0121Full text not available from this repository.
Official URL: http://dx.doi.org/10.1103/PhysRevB.66.014515
High-resolution small-angle neutron-scattering (SANS) studies of the vortex lattice (VL) in single-crystal YNi2B2C allows us to separate Bragg scattered intensities from the multidomain VL that exists for Bparallel toc. A precise determination of the VL unit-cell apex angle, beta, shows that there is a finite transition width associated with the field-driven 45degrees reorientation of the VL at a field H-1. Low- and high-field rhombic VL phases coexist over a finite range of applied field with no continuous distortion of the VL between the two phases. The smooth variation in scattered intensity from each phase through the transition indicates a redistribution of domain populations between the low- and high-field vortex structures. Our data supports the notion of a first-order reorientation phase transition in the VL at H-1 in the presence of weak static disorder (vortex pinning).
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||PHYSICAL REVIEW B|
|Publisher:||AMERICAN PHYSICAL SOC|
|Official Date:||1 July 2002|
|Number of Pages:||6|
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