64 citations · 177 across the 8 of their papers we have counts for
8 papers
Crossover From Individual to Collective Magnetism in Dense Nanoparticle Systems: Local Anisotropy Versus Dipolar Interactions
Elena H. Sánchez, Marianna Vasilakaki, Su Seong Lee +11
Dense systems of magnetic nanoparticles may exhibit dipolar collective behavior. However, two fundamental questions remain unsolved: i) whether the transition temperature may be af…
On the detection of surface spin freezing in iron oxide nanoparticles and its long-term evolution under ambient oxidation
M. Ghoshani, E. H. Sánchez, S. S. Lee +7
Exchange bias effects linked to surface spin freezing (SSF) are commonly found in iron oxide nanoparticles, while signatures of SSF in low-field temperature-dependent magnetization…
Multiferroic behavior confined by symmetry in EuTiO3 films
P. J. Ryan, G. E. Sterbinsky, Y. Choi +11
We have elucidated the spin, lattice, charge and orbital coupling mechanism underlying the multiferroic character in tensile strained EuTiO3 films. Symmetry determined by oxygen oc…
Simultaneous individual and dipolar collective properties in binary assemblies of magnetic nanoparticles
Elena H. Sánchez, Marianna Vasilakaki, Su Seong Lee +12
Applications based on aggregates of magnetic nanoparticles are becoming increasingly widespread, ranging from hyperthermia to magnetic recording. However, although some uses requir…
Magnetic properties of nanoparticles compacts with controlled broadening of the particle size distribution
Mikael S. Andersson, Roland Mathieu, Peter S. Normile +4
Binary random compacts with different proportions of small (volume V) and large (volume 2V) bare maghemite nanoparticles (NPs) are used to investigate the effect of controllably br…
The malleability of uranium: manipulating the charge-density wave in epitaxial films
R. Springell, R. C. C. Ward, J. Bouchet +6
We report x-ray synchrotron experiments on epitaxial films of uranium, deposited on niobium and tungsten seed layers. Despite similar lattice parameters for these refractory metals…