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Calorimeters with silicon detectors have many unique features and are proposed for several world-leading experiments. We discuss the tests of the first three 18x18 cm$^2$ layers segmented into 1024 pixels of the technological prototype of…

The thermal boundary resistance (Kapitza resistance) of (001) twist grain boundaries in silicon nanowires depends on the mismatch angle. This dependence is systematically investigated by means of nonequilibrium molecular dynamics…

Mesoscale and Nanoscale Physics · Physics 2017-01-26 J. K. Bohrer , K. Schröer , L. Brendel , D. E. Wolf

New generation high-energy physics experiments demand high precision tracking and accurate measurements of a large number of particles produced in the collisions of lementary particles and heavy-ions. Silicon-tungsten (Si-W) calorimeters…

SiC is a promising substrate for Si-on-insulator (SOI) wafers for efficient thermal management owing to its high thermal conductivity and large bandgap. However, fabricating a Si device layer on a SiC substrate with a high and uniform…

Materials Science · Physics 2024-06-26 Rulei Guo , Bin Xu , Fengwen Mu , Junichiro Shiomi

Facilitated by recent advances in strained Ge/SiGe quantum well (QW) growth technology, superconductor-semiconductor hybrid devices based on group IV materials have been developed, potentially augmenting the functionality of quantum…

Superconductivity · Physics 2025-09-18 Hao Li , Zhongxia Shang , Michael P. Lilly , Maksym Myronov , Leonid P. Rokhinson

Amorphous silicon (a-Si) is an important thermal-management material and also serves as an ideal playground for studying heat transport in strongly disordered materials. Theoretical prediction of the thermal conductivity of a-Si in a wide…

Materials Science · Physics 2023-02-22 Yanzhou Wang , Zheyong Fan , Ping Qian , Miguel A. Caro , Tapio Ala-Nissila

We demonstrate high-quality epitaxial germanium (Ge) films on a metallic silicide, Fe3Si, grown directly on a Ge(111) substrate. Using molecular beam epitaxy techniques, we can obtain an artificially controlled arrangement of silicon (Si)…

Materials Science · Physics 2012-10-04 S. Yamada , K. Tanikawa , M. Miyao , K. Hamaya

The electron-doped silicene under the influence of the biaxial tensile strain is predicted to be the phonon-mediated superconductor. By using the Eliashberg formalism, we investigate the thermodynamic properties of the superconducting…

Superconductivity · Physics 2015-02-03 A. P. Durajski , D. Szczȩśniak , R. Szczȩśniak

The modeling of deposition rates in Thermal Laser Epitaxy (TLE) is essential for the accurate prediction of the evaporation process and for improved dynamic process control. We demonstrate excellent agreement between experimental data and a…

Computational Engineering, Finance, and Science · Computer Science 2025-01-06 Thomas J. Smart , Bilen Emek Abali , Hans Boschker , Wolfgang Braun

Topological insulators with their topological protected surface states are highly promising quantum materials. In this article the micro-flakes of single-crystalline topological insulators Bi2Te3 and Sb2Te3 are explored through physical…

Materials Science · Physics 2021-06-23 Prince Sharma , Yogesh Kumar , V. P. S. Awana , Mahesh Kumar

Ab initio molecular dynamics simulation is used to investigate the structure and dynamics of liquid Se at temperatures of 870 and 1370~K. The calculated static structure factor is in excellent agreement with experimental data. The…

mtrl-th · Physics 2009-10-28 F. Kirchhoff , M. J. Gillan , J. M. Holender

We describe the details of a silicon-tungsten prototype electromagnetic calorimeter module and associated readout electronics. Detector performance for this prototype has been measured in test beam experiments at the CERN PS and SPS…

We study the relaxation of a thermal grating in multilayer materials with interface thermal resistances. The analytical development allows for the nu- merical determination of this thermal property in Approach to Equilibrium Molecular…

Materials Science · Physics 2018-05-31 Pier Luca Palla , Sonia Zampa , Evelyne Lampin , Fabrizio Cleri

Lattice constant of Bi$_2$Se$_3$ and Sb$_2$Te$_3$ crystals is determined by X-ray powder diffraction measurement in a wide temperature range. Linear thermal expansion coefficients ($\alpha$) of the crystals are extracted, and considerable…

Quantized magnetotransport is observed in 5.6 x 5.6 mm^2 epitaxial graphene devices, grown using highly constrained sublimation on the Si-face of SiC(0001) at high temperature (1900 {\deg}C). The precise quantized Hall resistance of Rxy =…

Transport of fast electron in overdense plasmas is of key importance in high energy density physics. However, it is challenging to diagnose the fast electron transport in experiments. In this article, we study coherent transition radiation…

We theoretically compute the thermal conductivity of SiGe alloy nanowires as a function of nanowire diameter, alloy concentration, and temperature, obtaining a satisfactory quantitative agreement with experimental results. Our results…

Materials Science · Physics 2015-05-27 Zhao Wang , N. Mingo

We have produced Sn/Si core-shell cluster assemblies by a plasma-gas-condensation cluster beam deposition apparatus. For the sample with Si content = 12 at.%, the temperature dependence of electrical resistivity exhibits a metallic behavior…

Superconductivity · Physics 2015-06-11 Yuichiro Kurokawa , Takehiko Hihara , Ikuo Ichinose , Kenji Sumiyama

A prototype Silicon-Tungsten electromagnetic calorimeter (ECAL) for an International Linear Collider (ILC) detector was installed and tested during summer and autumn 2006 at CERN. The detector had 6480 silicon pads of dimension 1x1 cm^2.…

Instrumentation and Detectors · Physics 2017-07-24 CALICE Collaboration

Silicon carbide (SiC) has become a popular material for next-generation power components due to its smaller size, faster switching speed, simpler cooling and greater reliability than Si-MOSFETs. With this in mind, we are thinking about…

Materials Science · Physics 2023-07-04 S. -C. Lee , Y. -T. Chen , C. -R. Liu , S. -M. Wang , Y. -T. Tang , F. -S. Chang , Z. -X. Li , K. -Y. Hsiang , M. -H. Lee
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