Now showing items 41-46 of 46
Spin-trimer antiferromagnetism in La4Cu3MoO12
(American Physical Society, 2005-06-01)
La4Cu3MoO12 is a cluster antiferromagnet where copper spin-1/2 trimers form a network of strongly coupled spin trimers. The magnetic properties of this material have been examined using magnetic neutron scattering. At low ...
Spin gap and resonance at the nesting wave vector in superconducting FeSe0.4Te0.6
(American Physical Society, 2009-08-07)
Neutron scattering is used to probe magnetic excitations in FeSe0.4Te0.6 (Tc = 14 K). Low energy spin fluctuations are found with a characteristic wave vector (1212L) that corresponds to Fermi surface nesting and differs ...
Magnetically driven ferroelectric order in Ni3V2O8
(American Physical Society, 2005-08-19)
We show that long-range ferroelectric and incommensurate magnetic order appear simultaneously in a single phase transition in Ni3V2O8. The temperature and magnetic-field dependence of the spontaneous polarization show a ...
Exploiting finite size effects in a novel core/shell microstructure
(American Institute of Physics, 2008-03-15)
Electrodeposition of Ni-Cu alloys at high Cu(II) concentration and large overpotentials results in phase separation with a unique microstructure characterized by features with a copper-rich core and a nickel-rich shell. ...
Dynamics of a vortex domain wall in a magnetic nanostrip: application of the collective-coordinate approach
(American Physical Society, 2008-10-01)
The motion of a vortex domain wall in a ferromagnetic strip of submicron width under the influence of an external magnetic field exhibits three distinct dynamical regimes. In a viscous regime at low fields the wall moves ...
Dynamics of domain walls in magnetic nanostrips
(American Physical Society, 2008-03-28)
We express the dynamics of domain walls in ferromagnetic nanowires in terms of collective coordinates, generalizing Thiele[psila]s steady-state results. For weak external perturbations the dynamics is dominated by a few ...