21 citations · 42 across the 6 of their papers we have counts for
3 papers · 1 filter
Metallic Hydrogen: Experiments on Metastability
W. Ferreira, M. Moller, K. Linsuain +4
Molecular hydrogen was pressurized in a diamond anvil cell at temperatures between 5 and 83 K. At a sufficiently high pressure, estimated to be between 477 to 491 GPa, hydrogen bec…
Re-analysing the phase sequence in Eu0.8Y0.2MnO3
J. Agostinho Moreira, A. Almeida, W. S. Ferreira +3
To clarify the controversy concerning the ferroelectricity of the lower temperature magnetic phases of Eu0.8Y0.2MnO3, hence its multiferroic character, we have studied in detail th…
Coupling between phonons and magnetic excitations in orthorhombic Eu_{1-x}Y_xMnO_3
J. Agostinho Moreira, A. Almeida, W. S. Ferreira +4
In this work we present a detailed study of the structural and lattice dynamic properties of Y-doped EuMnO3 ceramics (Eu1-xYxMnO3, with 0<x<0.55). A thorough analysis towards the c…