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2.752 Aktuelle Fachpublikationen in physica status solidi (b)

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Measurement of Two‐Photon Absorption of Silicon Nanocrystals in Colloidal Suspension for Bio‐Imaging Applications

08.01.2018 | Brandon J. Furey, Dorothy A. Silbaugh, Yixuan Yu, Adrien C. Guillaussier, Arnold D. Estrada, Christopher Stevens, Je ..., physica status solidi (b), 2018

Two‐photon absorption (2PA) of ligand‐passivated silicon nanocrystals (ncSi) in liquid suspensions is difficult to measure directly because of their low 2PA cross section and competing nonlinear optical processes in the suspension medium at high light intensity. Here we overcome these ...

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Evolution of Electronic Spectrum and Magnetic Properties of the High‐Temperature Cubic Phase La1−xSrxFeO3−δ in Coherent Potential Approximation

05.01.2018 | Veronika M. Zainullina, Michael А. Korotin, Victor L. Kozhevnikov, physica status solidi (b), 2018

The electron structure features in the high‐temperature cubic perovskite‐like ferrite La1−xSrxFeO3−δ are studied depending on concentration of disordered cation and anion defects by use of the Coherent Potential Approximatiom (CPA) taking into account the strong electronic correlations (U) in ...

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On the Influence of Surface Phenomena Upon Charge Transport in Te‐Based Glassy Semiconductors

05.01.2018 | Dumitru Tsiulyanu, M. Ciobanu, physica status solidi (b), 2018

The effect of surface phenomena caused by adsorption of NO2, CO2, and H2O vapor on the charge transport in thin films of chalcogenide glassy semiconductors (ChGS) of the As2S3Ge8–Te system has been studied. The investigations have been carried out by measuring the dynamic conductivity of these ...

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Mesoporous GaN Made by Selective Area Sublimation for Efficient Light Emission on Si Substrate

29.12.2017 | Benjamin Damilano, Stéphane Vézian, Jean Massies, physica status solidi (b), 2017

Selective area sublimation of thin (≤0.3 μm) GaN‐on‐Si epitaxial layers through nanoholes of an incomplete monolayer of SixNy results in the formation of mesoporous GaN. This morphologic change from a two‐dimensional flat layer to a nanostructured material presents the unexpected property of a ...

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Spin‐Driven Emergent Antiferromagnetism and Metal–Insulator Transition in Nanoscale p‐Si

27.12.2017 | Paul C. Lou, Sandeep Kumar, physica status solidi (b), 2017

The entanglement of the charge, spin and orbital degrees of freedom can give rise to emergent behavior especially in thin films, surfaces, and interfaces. Often, materials that exhibit those properties require large spin–orbit coupling. We hypothesize that the emergent behavior can also occur ...

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Optical Anisotropy of SrTiO3(110) for Different Surface Terminations

22.12.2017 | Karsten Fleischer, Sangsoo Kim, Brian Walls, Kuanysh Zhussupbekov, Igor V. Shvets, physica status solidi (b), 2017

In this work we investigate the SrTiO3(110) surface by reflectance anisotropy spectroscopy (RAS) at varying preparation steps including ex situ wet etching, high temperature oxygen annealing, as well as in situ vacuum annealing. Different surface terminations show distinctly different RAS ...

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Morphology and Work Function of In, Ag, Mg, and Au Nano‐Islands Grown on AlN(0001) Surface

22.12.2017 | Hassan Khoussa, Bulent Baris, Mohanad Alchaar, Florian Chaumeton, Mostefa Ghamnia, Sébastien Gauthier, David Martrou, physica status solidi (b), 2017

The study revealed that the nature of the AlN (0001) surface could play a fundamental role in the growth mode of metals. In the case of silver (Ag) deposited on the AlN(0001) (2×2)‐Nad reconstructed surface, the growth mode was Volmer–Weber. Deposition of indium (In) on a contaminated AlN(0001) ...

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Mixed Substitution in P‐Doped Anatase TiO2 Probed by XPS and DFT

21.12.2017 | Michael A. Korotin, Danil. W. Boukhvalov, Nikolay V. Gavrilov, Sang S. Kim, Seif O. Cholakh, Ernst Z. Kurmaev, physica status solidi (b), 2017

The investigation of the electronic structure of P‐ion implanted TiO2 thin films (E = 30 keV, D = 1 × 1017 cm−2) with anatase structure is performed by X‐ray photoelectron spectroscopy (XPS) measurements (core levels and valence bands) and first‐principles density functional theory (DFT) ...

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Influence of Finite Size on the Electrocaloric Response in PbTiO3 Ceramics Near Room Temperature Using Landau Theory

21.12.2017 | Zhen Liu, Bin Yang, Wenwu Cao, Turab Lookman, physica status solidi (b), 2017

We investigate the influence of grain size on the electrocaloric properties of ferroelectric systems using Landau theory. We study how the phase transformation temperature and electrocaloric property can be tuned by changing the grain size close to the critical size. Our results show that the ...

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InGaN/GaN Structures: Effect of the Quantum Well Number on the Cathodoluminescent Properties

21.12.2017 | Alice Hospodková, Tomáš Hubáček, Jiří Oswald, Jiří Pangrác, Karla Kuldová, Matěj Hývl, Filip Dominec, Gilles Ledoux, ..., physica status solidi (b), 2017

In this work we compare luminescence results obtained on InGaN/GaN multiple quantum well (QW) structures with 10 and 30 QWs. The aim is to increase the intensity of faster blue QW emission and decrease the luminescence of the QW defect band, showing a slower luminescence decay time, which is ...

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