12 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
5 papers
Room-temperature insulating ferromagnetic (Ni,Co)1+2xTi1-xO3 thin films
Yukari Fujioka, Johannes Frantti, Christopher Rouleau +6
Insulating uniaxial room-temperature ferromagnets are a prerequisite for commonplace spin wave-based devices, the obstacle in contemporary ferromagnets being the coupling of ferrom…
In Quest of a Ferromagnetic Insulator -- Structure Controlled Magnetism in Mg-Ti-O Thin Films
Johannes Frantti, Yukari Fujioka, Christopher Rouleau +5
Ferromagnetic insulator thin films can convey information by spin waves, avoiding charge displacement and Eddy current losses. The sparsity of high-temperature insulating ferromagn…
Nickel-cobalt-titanate thin films - new sustainable magnetic oxides
Yukari Fujioka, Johannes Frantti, Christopher Rouleau +2
Single phase nickel-cobalt-titanate thin films with a formula A1+2xTi1-xO3, where A is Ni2+,Co2+ and -0.25<x<1, were grown by pulsed laser deposition on sapphire substrates. There…
Phase transitions and thermal-stress-induced structural changes in a ferroelectric Pb(Zr0.80Ti0.20)O3 single crystal
J. Frantti, Y. Fujioka, A. Puretzky +4
A single crystal of lead-zirconate-titanate (PZT), composition Pb(Zr0.80Ti0.20)O3, was studied by polarized-Raman scattering as a function of temperature. Raman spectra reveal that…
X-ray and neutron scattering on disordered nanosize clusters: a case study of lead-zirconate-titanate solid solutions
Johannes Frantti, Yukari Fujioka
Defects and defect models of solids are reviewed. A numerical method able to treat non-periodical solids possessing several simultaneous defect types is given for simulating scatte…