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Nickel nitride (Ni-N) thin film samples were deposited using reactive magnetron sputtering process utilizing different partial flow of N2 (RN2). They were characterized using x-ray reflectivity (XRR), x-ray diffraction (XRD) and x-ray…

材料科学 · 物理学 2020-04-23 Nidhi Pandey , Mukul Gupta , Jochen Stahn

A tunneling spectroscopy study is presented of superconducting MoN and Nb$_{0.8}$Ti$_{0.2}$N thin films grown by atomic layer deposition (ALD). The films exhibited a superconducting gap of 2meV and 2.4meV respectively with a corresponding…

RF plasma assisted MBE growth of Scandium Nitride (ScN) thin films on GaN (0001)/SiC, AlN (0001)/Al2O3 and on 6H-SiC (0001) hexagonal substrates is found to lead to a face centered cubic (rock-salt) crystal structure with (111) out-of-plane…

材料科学 · 物理学 2020-01-08 Joseph Casamento , John Wright , Reet Chaudhuri , Huili Grace Xing , Debdeep Jena

High-quality and sizable single crystals are crucial for studying the intrinsic properties of unconventional superconductors, which are lacking in the 1111 phase of the Fe-based superconductors. Here we report the successful growth of…

超导电性 · 物理学 2015-07-03 Yonghui Ma , Hui Zhang , Bo Gao , Kangkang Hu , Qiucheng Ji , Gang Mu , Fuqiang Huang , Xiaoming Xie

A Scintillator Deposited CCD (SDCCD) is a wide-band X-ray detector consisting of a CCD and a scintillator directly attached to each other. We assembled the newly developed SDCCD that the scintillator CsI(Tl) is below the fully depleted CCD.…

天体物理仪器与方法 · 物理学 2010-10-01 Hiroshi Tsunemi , Shutaro Ueda , Kazuo Shigeyama , Koji Mori , Shoichi Aoyama , Shin'ichiro Takagi

We report growth and characterization of epitaxial $\alpha$-Sn thin films grown on CdTe(111)B. Noninvasive techniques verify the film's pseduomorphic growth before fabrication of magnetotransport devices, overcoming ex-situ obstacles on…

强关联电子 · 物理学 2020-02-19 Owen Vail , Patrick Taylor , Patrick Folkes , Barbara Nichols , George de Coster

Pulsed laser deposition from a Nd:YAG laser was employed in production of hundreds of nanometer thick quasicrystalline Ti-Zr-Ni films on glass substrate. The influence of deposition temperature Ts on the structure, morphology and…

材料科学 · 物理学 2020-10-26 Valerie Brien , A. Dauscher , P. Weisbecker , J. Ghanbaja , F Machizaud

The distribution of rates of carrier multiplication (CM) following photon absorption is calculated for semiconductor nanocrystals (NCs). The NC electronic structure is described using a screened pseudopotential method known to give reliable…

材料科学 · 物理学 2015-05-13 Eran Rabani , Roi Baer

In this paper the state-of-the-art for exploiting the unique physical and chemical properties of crystalline materials and their possible applications for development of crystalline nanocomposites with the tailored anisotropy were…

材料科学 · 物理学 2019-02-26 Nazariy Andrushchak , Petra Goering , Anatoliy Andrushchak

A cadmium tungstate crystal boule enriched in $^{116}$Cd to 82% with mass of 1868 g was grown by the low-thermal-gradient Czochralski technique. The isotopic composition of cadmium and the trace contamination of the crystal were estimated…

Single crystals of ZrAs1.4Se0.5 (PbFCl type structure) were grown by chemical vapour transport. While their thermodynamic and transport properties are typical for ordinary metals, the electrical resistivity exhibits a shallow minimum at low…

强关联电子 · 物理学 2015-06-25 M. Schmidt , T. Cichorek , R. Niewa , A. Schlechte , Y. Prots , F. Steglich , R. Kniep

Nanocrystalline samples of pristine capped and uncapped zinc sulphide were synthesized via the sol-gel technique. The nanocrystallinity of the samples were confirmed by the X-ray diffraction technique, where size of the particle size…

材料科学 · 物理学 2023-04-27 Samiran Mandal , Sk Irsad Ali , Subhamay Pramanik , Atis Chandra Mandal

Detection of photons with scintillating inorganic crystals in the high-energy range (> 0.1 MeV) will be discussed, making a comparison with other available methods. Energy resolutions up to 2 % at 662 keV and fast decay time of the order of…

仪器与探测器 · 物理学 2025-05-13 M. Bonesini

We report a significant enhancement of superconducting transition temperature ($\textit{T}_\textrm{c}$) of transition metal dichalcogenide (TMD) superconductor $\textrm{NbTe}_2$ from 0.56 K to 2.8 K. Detailed x-ray structure analysis…

We report the computational investigation of a series of ternary X$_4$Y$_2$Z and X$_5$Y$_2$Z$_2$ compounds with X={Mg, Ca, Sr, Ba}, Y={P, As, Sb, Bi}, and Z={S, Se, Te}. The compositions for these materials were predicted through a search…

材料科学 · 物理学 2019-04-03 Maximilian Amsler , Logan Ward , Vinay I. Hegde , Maarten G. Goesten , Xia Yi , Chris Wolverton

Investigated in this work were sensitivities of a prototype detector for the detection of low-mass dark matter particles produced at the Spallation Neutron Source at the Oak Ridge National Laboratory in two years of data taking. The…

仪器与探测器 · 物理学 2020-06-23 Dmitry Chernyak , Daniel Pershey , Jing Liu , Keyu Ding , Nathan Saunders , Tupendra Oli

We present methods to improve the energy resolution of single-channel, room-temperature Cadmium-Zinc-Telluride (CZT) detectors. A new preamplifier design enables the acquisition of the actual transient current from the crystals and…

仪器与探测器 · 物理学 2008-11-26 Y. Ramachers , D. Y. Stewart

Colloidal core/shell nanocrystals are key materials for optoelectronics, enabling control over essential properties via precise engineering of the shape, thickness, and crystal lattice structure of their shell. Here, we apply the growth…

The bulk single crystals of $S = 1$ chain compound Ni(C$_3$H$_{10}$N$_2$)$_2$NO$_2$ClO$_4$ are grown by using a slow evaporation method at a constant temperature and a slow cooling method. It is found that the optimum condition of growing…

强关联电子 · 物理学 2013-11-13 W. Tao , L. M. Chen , X. M. Wang , C. Fan , W. P. Ke , X. G. Liu , Z. Y. Zhao , Q. J. Li , X. F. Sun

Single crystals of MgB2 and Mg(B1-xCx)2 have been grown using cubic anvil technique. Tc values vary in a wide range (39-9 K) with carbon content varying from 0 up to 16%. Using SiC as the precursor leads to C and not to Si substituted…

超导电性 · 物理学 2016-08-31 S. M. Kazakov , J. Karpinski , J. Jun , P. Geiser , N. D. Zhigadlo , R. Puzniak , A. V. Mironov