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Lithium niobate is a multi-functional material with wide reaching applications in acoustics, optics, and electronics. Commercial applications for lithium niobate require high crystalline quality currently limited to bulk and ion sliced…

Applied Physics · Physics 2019-10-11 M. Brooks Tellekamp , Joshua C. Shank , Mark S. Goorsky , W. Alan Doolittle

Topologically non trivial spin textures host great promise for future spintronic applications. Skyrmions in particular are of burgeoning interest owing to their nanometric size, topological protection, and high mobility via ultra-low…

A true monolithic infrared photonics platform is within reach if strain and bandgap energy can be independently engineered in SiGeSn semiconductors. Herein, we investigate the structural and optoelectronic properties of a 1.5 {\mu}m-thick…

In this paper, RF sputtered antimony vanadium oxide (SbVO4) thin films and its characterization are reported. High purity sputtering targets were fabricated by sintering a mixture of Sb2O3 and V2O5 powders. Thin films were deposited by…

Applied Physics · Physics 2019-11-28 Tilak Poudel , Corey Grice , Yanfa Yan , Xunming Deng

Chalcogenides, which refer to chalcogen anions, have attracted considerable attention in multiple fields of applications, such as optoelectronics, thermoelectrics, transparent contacts, and thin film transistors. In comparison to oxide…

This article explores the structural properties of molecular beam epitaxy grown {CdO/MgO} superlattices on sapphire substrates of different crystallographic orientations (a-, c-, r-, and m-plane). The investigations involve a comprehensive…

$Al_xGa_{1-x}N$ is a critical ultra-wide bandgap material for optoelectronics, but the deposition of thick, high quality epitaxial layers has been hindered by a lack of lattice-matched substrates. Here we identify the (111) face of…

Materials Science · Physics 2022-08-26 Dennice M. Roberts , Andrew Norman , Moira K. Miller , M. Brooks Tellekamp

Novel materials with large electro-optic (EO) coefficients are essential for developing ultra-compact broadband modulators and enabling effective quantum transduction. Compared to lithium niobate, the most widely used nonlinear optical…

Materials Science · Physics 2024-10-22 Haochen Wang , Sai Mu , Chris G. Van de Walle

We investigated the optical properties of 13 different dielectric materials (slide glass, quartz, Al2O3 (c-cut), DyScO3 (110), KTaO3 (001), LaAlO3 (001), (LaAlO3)0.3-(Sr2AlTaO6)0.7 (001) (LSAT), MgF2 (100), MgO (100), SiC, SrTiO3 (001),…

Materials Science · Physics 2025-09-24 Minjae Kim , Hong Gu Lee , Jungseek Hwang

New perspective cubic quasi-alloys CdO/MgO short period superlattices were grown on sapphire substrates by plasma assisted molecular beam epitaxy. Their crystal quality was characterized using High Resolution X-ray Diffraction (HRXRD) and…

Aluminum, as a metallic material for plasmonics, is of great interest because it extends the applications of surface plasmon resonance into the ultraviolet (UV) region and excels noble metals in the natural abundance, cost and compatibility…

Materials Science · Physics 2014-12-11 Hsuan-Wei Liu , Fan-Cheng Lin , Shi-Wei Lin , Jau-Yang Wu , Sheng-Di Lin , Jer-Shing Huang

Crystalline wurtzite zinc oxide (w-ZnO) can be used as a wide band gap semiconductor for light emitting devices and for transparent or high temperature electronics. The use of amorphous zinc oxide (a-ZnO) can be an advantage in these…

Materials Science · Physics 2022-11-29 M. Zubkins , J. Gabrusenoks , G. Chikvaidze , I. Aulika , J. Butikova , R. Kalendarev , L. Bikse

The optical properties the high-temperature superconductor La{2-x}Ba{x}CuO{4} have been measured over a wide frequency and temperature range for light polarized in the a-b planes and along the c axis. Three different Ba concentrations have…

Superconductivity · Physics 2014-03-11 C. C. Homes , M. Huecker , Q. Li , Z. J. Xu , J. S. Wen , G. D. Gu , J. M. Tranquada

The microscopic knowledge of the structural, energetic, and electronic properties of scandium fluoride is still incomplete, despite the relevance of this material as an intermediate for the manufacturing of Al-Sc alloys. In a work based on…

X-ray diffraction measurements on the sphalerite-derivatives ZnGa2Se4 and CdGa2S4 have been performed upon compression up to 23 GPa in a diamond-anvil cell. ZnGa2Se4 exhibits a defect tetragonal stannite-type structure (I-42m) up to 15.5…

Materials Science · Physics 2008-09-29 D. Errandonea , R. S. Kumar , F. J. Manjon , V. V. Ursaki , I. M. Tiginyanu

High-quality defect-free lonsdaleite Si and Ge can now be grown on hexagonal nanowire substrates. These hexagonal phases of group-IV semiconductors have been predicted to exhibit improved electronic and optical properties for optoelectronic…

Atomically resolved scanning tunneling microscopy (STM) and x-ray photoelectron spectroscopy (XPS) are used to gain atomic-scale insights into the heteroepitaxy of lanthanum-strontium manganite (LSMO, La$_{1-x}$Sr$_x$MnO$_{3-{\delta}}$, $x$…

Mesoscale and Nanoscale Physics · Physics 2023-11-28 Giada Franceschi , Renè Heller , Michael Schmid , Ulrike Diebold , Michele Riva

Crystalline Fe3O4/NiO bilayers were grown on MgO(001) substrates using reactive molecular beam epitaxy to investigate their structural properties and their morphology. The film thickness either of the Fe3O4 film or of the NiO film has been…

Materials Science · Physics 2023-07-19 Tobias Schemme , Olga Kuschel , Florian Bertram , Karsten Kuepper , Joachim Wollschäger

The electronic and optical parameters of {\gamma}-Al2O3 and {\theta}-Al2O3 have been studied by using the first principle within the framework of density function theory (DFT). The computational approach is based on full-potential…

Materials Science · Physics 2019-03-21 Ahmed S. Jbara , Zulkafli Othaman , H. A. Rahnamaye Aliabad , M. A. Saeed

Flat-optics platforms offer new opportunities for the generation of entangled photons by relaxing traditional phase-matching constraints, enabling the use of a broader range of nonlinear materials. Among these, gallium arsenide and aluminum…