Results 91 to 100 of about 138,462 (342)

Role of Liquid Composition in the Transient Liquid Assisted Growth of Superconducting YBa2Cu3O7‐δ Films

Advanced Materials, EarlyView.
The Y supersaturation in the [Ba‐Cu(I/II)‐O] transient liquid composition is the driving force toward YBCO nucleation and growth in TLAG. Tuning the initial (Ba:Cu) molar ratio in the ink composition determines the YBCO epitaxial nucleation through supersaturation control.
Lavinia Saltarelli, Diana García, Laia Soler, Elzbieta Pach, Kapil Gupta, Daniel Sanchez‐Rodriguez, Jordi Aguilar, Víctor Fuentes, Eduardo Solano, Cristian Mocuta, Jordi Farjas, Xavier Obradors, Teresa Puig   +12 more
wiley   +1 more source

Dopant-stimulated growth of GaN nanotube-like nanostructures on Si(111) by molecular beam epitaxy

Beilstein Journal of Nanotechnology, 2018
In this paper we study growth of quasi-one-dimensional GaN nanowires (NWs) and nanotube (NT)-like nanostructures on Si(111) substrates covered with a thin AlN layer grown by means of plasma-assisted molecular beam epitaxy.
Alexey D. Bolshakov, Alexey M. Mozharov, Georgiy A. Sapunov, Igor V. Shtrom, Nickolay V. Sibirev, Vladimir V. Fedorov, Evgeniy V. Ubyivovk, Maria Tchernycheva, George E. Cirlin, Ivan S. Mukhin   +9 more
doaj   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

Advanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano, Fabián Calleja, Ji Dai, Massimo Tallarida, Vera Marinova, Alessandro Barla, Marc G. Cuxart, Pierluigi Gargiani, Gonzalo N. Molina, José Angel Silva‐Guillén, Adriana I. Figueroa, Kevin García‐Díez, Sergio O. Valenzuela, Aitor Mugarza, Amadeo L. Vázquez de Parga, Rodolfo Miranda, Francisco Guinea, Manuela Garnica, Miguel A. Valbuena   +18 more
wiley   +1 more source

Reduction of thermal conductivity by nanopillar inclusion in thermoelectric vertically aligned nanocomposites

JPhys Energy
The phonon-glass electron-crystal paradigm has guided thermoelectric research in recent years. However, the inherent conflict between atomic disorder reducing phonon conduction, and the order required to maintain high electron mobility, creates a ...
Marijn W van de Putte, Jasman Singh Gambhir, Nicolas Gauquelin, Alexandros Sarantopoulos, Daniel Monteiro Cunha, Johan Verbeeck, Gertjan Koster, Francisco Rivadulla, Mark Huijben   +8 more
doaj   +1 more source

Properties of epitaxial, (001)- and (110)-oriented (PbMg1/3Nb2/3O3)2/3-(PbTiO3)1/3 films on silicon described by polarization rotation

Science and Technology of Advanced Materials, 2016
Epitaxial (PbMg1/3Nb2/3O3)2/3-(PbTiO3)1/3 (PMN-PT) films with different out-of-plane orientations were prepared using a CeO2/yttria stabilized ZrO2 bilayer buffer and symmetric SrRuO3 electrodes on silicon substrates by pulsed laser deposition.
Muhammad Boota, Evert P. Houwman, Matthijn Dekkers, Minh D. Nguyen, Kurt H. Vergeer, Giulia Lanzara, Gertjan Koster, Guus Rijnders   +7 more
doaj   +1 more source

Morphology of Diamond Layers Grown on Different Facets of Single Crystal Diamond Substrates by a Microwave Plasma CVD in CH4-H2-N2 Gas Mixtures

Crystals, 2017
Epitaxial growth of diamond films on different facets of synthetic IIa-type single crystal (SC) high-pressure high temperature (HPHT) diamond substrate by a microwave plasma CVD in CH4-H2-N2 gas mixture with the high concentration (4%) of nitrogen is ...
Evgeny E. Ashkinazi, Roman A. Khmelnitskii, Vadim S. Sedov, Andrew A. Khomich, Alexander V. Khomich, Viktor G. Ralchenko   +5 more
doaj   +1 more source

Decoupling of epitaxy‐related trapping effects in AlGaN/GaN metal–insulator semiconductor high‐electron‐mobility transistors [PDF]

, 2016
Martin Huber, Gilberto Curatola, Gianmauro Pozzovivo, Ingo Daumiller, Lauri Knuuttila, Marco Silvestri, Alberta Bonanni, Anders Lundskog   +7 more
openalex   +1 more source

Resonant Interlayer Coupling in NbSe2‐Graphite Epitaxial Moiré Superlattices

Advanced Materials, EarlyView.
Combining angle‐resolved photoemission spectroscopy and density functional theory derived calculations, this work reveals strong interlayer coupling and moiré replicas of the graphite π states in molecular‐beam epitaxy grown van der Waals heterostructures of monolayer‐NbSe2/graphite, with implications for its collective phases that form. Abstract Moiré
Shu Mo, Ksenija Kovalenka, Sebastian Buchberger, Bruno K. Saika, Anugrah Azhar, Akhil Rajan, Andela Zivanovic, Yu‐Chi Yao, Rodion V. Belosludov, Matthew D. Watson, M Saeed Bahramy, Phil D.C. King   +11 more
wiley   +1 more source

Advancing the Growth of GaN on AlScN and AlYN by Metal–Organic Chemical Vapor Deposition

Advanced Physics Research
High electron mobility transistors (HEMT) based on Al1‐xScxN/GaN and Al1‐xYxN/GaN heterostructures promise increased device performance and reliability due to the high sheet charge carrier density and the possibility to grow strain‐free layers on GaN ...
Isabel Streicher, Niklas Wolff, Teresa Duarte, Oliver Rehm, Patrik Straňák, Lutz Kirste, Mario Prescher, Xuyun Guo, Valeria Nicolosi, Lutz Baumgarten, Martina Müller, Lorenz Kienle, Stefano Leone   +12 more
doaj   +1 more source

Growth of Ordered Graphene Ribbons by Sublimation Epitaxy

Crystals, 2018
Ordered graphene ribbons were grown on the surface of 4° off-axis 4H-SiC wafers by sublimation epitaxy, and characterized by using scanning electron microscopy (SEM), atomic force microscopy (AFM) and micro-Raman spectroscopy (μ-Raman).
Shuxian Cai, Xingfang Liu, Xin Zheng, Zhonghua Liu   +3 more
doaj   +1 more source