135 citations · 476 across the 12 of their papers we have counts for
12 papers
First principles derivation of a Rayleigh Gans Debye model for scattering from anisotropic inhomogeneities
M. H. Shachar, J. E. Garay
Scattering problems are important in describing light propagation in wide ranging media such as the atmosphere, colloidal solutions, metamaterials, glass ceramic composites, transp…
First and second order magnetic anisotropy and damping of europium iron garnet under high strain
Victor H. Ortiz, Bassim Arkook, Junxue Li +8
Understanding and tailoring static and dynamic properties of magnetic insulator thin films is important for spintronic device applications. Here, we grow atomically flat epitaxial…
Bulk Polycrystalline Ceria Doped AlO and YAG Ceramics for High-Power Density Laser-Driven Solid-State White Lighting: Effects of Crystallinity and Extreme Temperatures
E. H. Penilla, P. Sellappan, M. A. Duarte +3
Here we develop and characterize high thermal conductivity/high thermal shock resistant bulk Ce doped Al2O3 and propose it as a new phosphor converting capping layer for high-power…
Systematic Control of Strain-Induced Perpendicular Magnetic Anisotropy in Epitaxial Europium and Terbium Iron Garnets Thin Films
Victor H. Ortiz, Mohammed Aldosary, Junxue Li +6
We show tunable strain-induced perpendicular magnetic anisotropy (PMA) over a wide range of thicknesses in epitaxial ferrimagnetic insulator Eu3Fe5O12 (EuIG) and Tb3Fe5O12 (TbIG) t…
Acoustic Phonon Dispersion Engineering in Bulk Crystals via Incorporation of Dopant Atoms
Fariborz Kargar, Elias H. Penilla, Ece Aytan +3
We report results of Brillouin - Mandelstam spectroscopy of transparent alumina crystals with Nd dopants. The ionic radius and atomic mass of Nd atoms are distinctively different f…
Synthesis, processing and transport properties of cubic and trigonal solid solutions in the Mg-Si-Sn system
Pathikumar Sellappan, Anthony Y. Fong, Masayuki Murata +2
Mg-Si-Sn solid solutions have interesting and useful semiconducting properties particularly for thermoelectric applications. While cubic solid solutions have been prepared by a var…
Magnetic and Thermal Transport Properties of Permanent Magnets with Anisotropic Grain Structure
A. D. Volodchenkov, S. Ramirez, R. Samnakay +4
Nanostructured permanent magnets are gaining increasing interest and importance for applications such as generators and motors. Thermal management is a key concern since performanc…
Thermal and Magnetic Properties of Nanostructured Ferrimagnetic Composites with Graphene - Graphite Fillers
S. Ramirez, K. Chan, R. Hernandez +6
We report the results of an experimental study of thermal and magnetic properties of nanostructured ferrimagnetic iron oxide composites with graphene and graphite fillers synthesiz…
Anomalous Hall hysteresis in Tm3Fe5O12/Pt with strain-induced perpendicular magnetic anisotropy
Chi Tang, Pathikumar Sellappan, Yawen Liu +3
We demonstrate robust interface strain-induced perpendicular magnetic anisotropy in atomically flat ferrimagnetic insulator Tm3Fe5O12 films grown with pulsed laser deposition on su…
Synthesis of strontium ferrite/iron oxide exchange coupled nano-powders with improved energy product for rare earth free permanent magnet applications
A. D. Volodchenkov, Y. Kodera, J. E. Garay
We present a simple, scalable synthesis route for producing exchange coupled soft/hard magnetic composite powder that outperforms pure soft and hard phase constituents. Importantly…
An integrated approach to doped thin films with strain tunable magnetic anisotropy: Powder synthesis, target preparation and pulsed laser deposition of Bi:YIG
Pathikumar Sellappan, Chi Tang, Jing Shi +1
We present a synthesis/processing method for fabricating ferrimagnetic insulator (Bi-doped yttrium iron garnet) thin films with tunable magnetic anisotropy. Since the desired magne…
Growth of Large-Area Graphene Films from Metal-Carbon Melts
Shaahin Amini, Javier Garay, Guanxiong Liu +2
We have demonstrated a new method for the large-area graphene growth, which can lead to a scalable low-cost high-throughput production technology. The method is based on growing si…