57 citations · 168 across the 8 of their papers we have counts for
8 papers · 1 filter
Magnetic field-dependence of the basal-plane superconducting anisotropy in YBa2Cu4O8 from small-angle neutron scattering measurements of the vortex lattice
Jonathan S. White, Charlotte J. Bowell, Alistair S. Cameron +9
We report a study of the basal-plane anisotropy of the superfluid density in underdoped YBaCuO (Y124), showing the effects of both the CuO planes and the fu…
The Magnetic Structure of Individual Flux Vortices in Superconducting MgB2 Derived using Transmission Electron Microscopy
J. C. Loudon, C. J. Bowell, N. D. Zhigadlo +2
Images of flux vortices in superconductors acquired by transmission electron microscopy should allow a quantitative determination of their magnetic structure but so far, only visua…
Spin density wave induced disordering of the vortex lattice in superconducting LaSrCuO
J. Chang, J. S. White, M. Laver +19
We use small angle neutron scattering to study the superconducting vortex lattice in LaSrCuO as a function of doping and magnetic field. We show that near optimally…
Imaging Flux Vortices in MgB2 using Transmission Electron Microscopy
J. C. Loudon, C. J. Bowell, N. D. Zhigadlo +2
We report the successful imaging of flux vortices in single crystal MgB2 using transmission electron microscopy. The specimen was thinned to electron transparency (350 nm thickness…
The Absence of Vortex Lattice Melting in a Conventional Superconductor
C. J. Bowell, R. J. Lycett, M. Laver +3
The state of the vortex lattice extremely close to the superconducting to normal transition in an applied magnetic field is investigated in high purity niobium. We observe that the…
The pairing state in KFe2As2 studied by measurements of the magnetic vortex lattice
H. Kawano-Furukawa, C. J. Bowell, J. S. White +14
Understanding the mechanism and symmetry of electron pairing in iron-based superconductors represents an important challenge in condensed matter physics [1-3]. The observation of m…
Determination of the Nature of the Tetragonal to Orthorhombic Phase Transition in SrFe_2As_2 by Measurement of the Local Order Parameter
J. C. Loudon, C. J. Bowell, J. Gillett +2
SrFe2As2 is the end-member for a series of iron-pnictide superconductors and has a tetragonal-to-orthorhombic phase transition near 200 K. Previous macroscopic measurements to dete…
Fermi surface and order parameter driven vortex lattice structure transitions in twin-free YBa2Cu3O7
J. S. White, V. Hinkov, R. W. Heslop +12
We report on small-angle neutron scattering studies of the intrinsic vortex lattice (VL) structure in detwinned YBa2Cu3O7 at 2 K, and in fields up to 10.8 T. Because of the suppres…