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相关论文: Thickness Dependent Parasitic Channel Formation at…

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Parasitic electromagnetic fields are shown to strongly suppress the quality (Q)-factor of superconducting coplanar waveguide resonators via non-local dissipation in the macroscopic environment. Numerical simulation and low temperature…

超导电性 · 物理学 2012-03-21 J. M. Hornibrook , E. E. Mitchell , D. J. Reilly

It is generally impossible to separately measure the resistance of the functional component (i.e., the intrinsic device materials) and the parasitic component (i.e., terminals, interfaces and serial loads) in a two-terminal device. Yet such…

介观与纳米尺度物理 · 物理学 2017-09-13 Yang Lu , I-Wei Chen

We determine the size effect on the lattice thermal conductivity of nanoscale wire and multilayer structures formed in and by some typical semiconductor materials, using the Boltzmann transport equation and focusing on the Knudsen flow…

材料科学 · 物理学 2009-11-11 Eleni Ziambaras , Per Hyldgaard

The effect of film morphology on its surface chemistry and band structure has been analyzed for gallium nitride epitaxial films grown by molecular beam epitaxy. The film morphology has been studied using scanning electron microscopy and…

材料科学 · 物理学 2018-01-09 Abhijit Chatterjee , S. P. Swathi , S. M. Shivaprasad

Nanoscale channels realized at the conducting interface between LaAlO$_{3}$ and SrTiO$_{3}$ provide a perfect playground to explore the effect of dimensionality on the electronic properties of complex oxides. Here we compare the electric…

Rocksalt ScN is a semiconductor with a small lattice mismatch to wurtzite GaN. Within the modern theory of polarization, ScN has a nonvanishing formal polarization along the [111] direction. As a result, we demonstrate that an interface…

材料科学 · 物理学 2019-12-23 Nicholas L. Adamski , Cyrus E. Dreyer , Chris G. Van de Walle

Field-Effect Transistors with graphene channels or GFETs are an interesting alternative for the detection of analytes in biological fluids since the electrical behavior of the channel changes when exposed to a sample (among other detection…

医学物理 · 物理学 2024-07-16 Ricardo Bravo , Ricardo Silva , Eric Barret , John Brunnings , Adianette Segarra

The discovery of a two-dimensional (2D) electron gas at the (110)-oriented LaAlO3/SrTiO3 in- terface provided us with the opportunity to probe the effect of crystallographic orientation and the ensuing electronic reconstructions on…

强关联电子 · 物理学 2013-05-13 G. Herranz , N. Bergeal , J. Lesueur , J. Gazquez , M. Scigaj , N. Dix , F. Sanchez , J. Fontcuberta

Diffusion mediated interaction in metal-substrate assembly during high temperature annealing leads to possible formation of new composite materials. Here, sputtered grown Ti films on Si3N4/Si substrate has been reported to produce titanium…

材料科学 · 物理学 2020-11-19 Sachin Yadav , Sangeeta Sahoo

We revisit the theory of ion transport in parallel-plate channels and also discuss how the wettability of a solid and the mobility of adsorbed surface charges impact the transport of ions. It is shown that depending on the ratio of the…

软凝聚态物质 · 物理学 2021-09-29 Olga I. Vinogradova , Elena F. Silkina , Evgeny S. Asmolov

Nanoscale control of the quasi-two-dimensional electron gas at the LaAlO3/SrTiO3 (LAO/STO) interface by a conductive probe tip has triggered the development of a number of electronic devices. While the spatial distribution of the…

介观与纳米尺度物理 · 物理学 2018-01-17 Zhanzhi Jiang , Xiaoyu Wu , Hyungwoo Lee , Jung-Woo Lee , Jianan Li , Guanglei Cheng , Chang-Beom Eom , Jeremy Levy , Keji Lai

Using atomistic electronic structure calculations and Boltzmann semi-classical transport we compute the thermoelectric power factor of ultra-thin-body p-type Si layers of thicknesses from W=3nm up to 10nm. We show that the power factor for…

材料科学 · 物理学 2012-07-31 Neophytos Neophytou , Hans Kosina

Superconducting transition temperatures Tc of the YBCO film surface and of the YBCO film/substrate interface were measured inductively. It was observed that the interface- Tc is always higher then the surface - Tc. However deposition of…

超导电性 · 物理学 2015-05-14 S. S. Tinchev

Features of thermal transport in multilayered porous silicon nanostructures are considered. Such nanostructures were fabricated by electrochemical etching of monocrystalline Si substrates by applying periodically changed current density.…

This work reports a systematic study of the evolution of charge transport mechanism in granular ultra-thin films of palladium of thickness varying between 6nm and 2nm. While the films with thickness > 4nm exhibit metallic behaviour, that at…

TaN thin film is an attractive interlayer as well as a diffusion barrier layer in [FeN/TaN](n) multilayers for the application as potential write-head materials in high-density magnetic recording. We synthesized two series of TaN films on…

材料科学 · 物理学 2007-05-23 H. B. Nie , S. Y. Xu , S. J. Wang , L. P. You , Z. Yang , C. K. Ong , J. Li , T. Y. F. Liew

Heat transfer enhancement of N-Ga-Al semiconductor heterostructure interfaces is critical for the heat dissipation in GaN-based electronic devices, while the effect of the AlxGa(1-x)N transition layer component concentration and thickness…

材料科学 · 物理学 2024-10-14 Wenzhu Luo , Ershuai Yin , Lei Wang , Wenlei Lian , Neng Wang , Qiang Li

Unintentionally formed interfacial layers are ubiquitous in semiconductor devices that operate at extreme conditions. However, these layers' structure and properties often remain unknown due to the thinness of these naturally formed…

Raman studies of nanocomposite SiCN thin film by sputtering showed that with an increase of substrate temperature from room temperature to 500oC, a transition from mostly sp2 graphitic phase to sp3 carbon took place which was observed from…

材料科学 · 物理学 2016-11-24 A. S. Bhattacharyya , S. K. Mishra

Room and high temperature mechanical properties of reactive magnetron sputtered TaSiN coatings were measured using nanoindentation (between 25C and 500C). Fracture toughness was also evaluated at a similar temperature range using the…