Publications (6)
Nature of the ferromagnet-paramagnet transition in YCaTiO
S. Hameed, I. Khayr, J. Joe +8
Neutron scattering, magnetometry, and muon spin rotation (SR) measurements were performed to investigate the magnetic order and spin dynamics across the ferromagnet-to-paramagn…
Effect of random antiferromagnetic exchange on the spin waves in a three-dimensional Heisenberg ferromagnet
S. Hameed, Z. Wang, D. M. Gautreau +12
Neutron scattering is used to study spin waves in the three-dimensional Heisenberg ferromagnet YTiO, with spin-spin exchange disorder introduced La-substitution at the Y…
Growth and characterization of large (Y,La)TiO and (Y,Ca)TiO single crystals
S. Hameed, J. Joe, L. R. Thoutam +12
The Mott-insulating rare-earth titanates (RTiO, R being a rare-earth ion) are an important class of materials that encompasses interesting spin-orbital phases as well as ferrom…
The role of adhesion in contact mechanics
M. Ciavarella, J. Joe, A. Papangelo +1
Adhesive [e.g. van der Waals] forces were not generally taken into account in contact mechanics until 1971, when Johnson, Kendall and Roberts (JKR) generalized Hertz' solution for…
Local inversion-symmetry breaking in a bismuthate high- superconductor
S. Griffitt, M. SpaiÄ, J. Joe +6
The doped perovskite BaBiO exhibits a maximum superconducting transition temperature () of 34 K and was the first high- oxide to be discovered, yet pivotal questions…
Two-component electronic phase separation in the doped Mott insulator YCaTiO
S. Hameed, J. Joe, D. M. Gautreau +3
One of the major puzzles in condensed matter physics has been the observation of a Mott-insulating state away from half-filling. The filling-controlled Mott insulator-metal transit…