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Related papers: Probing efficient n-type lanthanide dopants for Mg…

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Density functional theory $(DFT)$ studies show that doping of $3d TM$ atoms into $Mg_4^{0,+} (TMMg_3^{0,+})$ can alter the endothermic nature of molecular hydrogen adsorption on bare $Mg_4^{0,+}$. $H_2$ adsorption on $TMMg_3^{0,+}$ clusters…

Materials Science · Physics 2021-12-21 Bishwajit Boruah , Bulumoni Kalita

We present a study of p-type doping of CdTe and Cd$_{1-x}$Mn$_x$Te quantum wells from surface states. We show that this method is as efficient as usual modulation doping with nitrogen acceptors, and leads to hole densities exceeding $2…

Materials Science · Physics 2007-05-23 W. Maslana , M. Bertolini , H. Boukari , P. Kossacki , D. Ferrand , J. A. Gaj , S. Tatarenko , J. Cibert

We study the thermoelectric properties of Te-doped FeSb2 nanostructured samples. Four samples of stoichiometry FeSb1.84Te0.16 were prepared by a hot press method at temperatures of 200, 400, 500, and 600 oC. Te-doping enhances the…

Materials Science · Physics 2013-03-18 M. Pokharel , H. Z. Zhao , M. Koirala , Z. F. Ren , C. Opeil

A recent experiment has reported a nitrogen-doped lutetium hydride acheving a remarkable Tc of 294 K at just 1 GPa, significantly reducing the required pressure for obtaining room temperature superconductivity. However, subsequent…

Superconductivity · Physics 2024-05-15 Zheng-Wei Liao , Xin-Wei Yi , Jing-Yang You , Bo Gu , Gang Su

Compounds of Sr1-xLaxFe2As2 were synthesized by solid state reaction at 1273 K, under pressures of 2 or 3 GPa. The Sr1-xLaxFe2As2 phase was dominant up to x = 0.5, and superconductivity was observed at $x \ge 0.2$. A maximum critical…

Superconductivity · Physics 2015-05-18 Yoshinori Muraba , Satoru Matsuishi , Sung-Wng Kim , Toshiyuki Atou , Osamu Fukunaga , Hideo Hosono

Expanding the operational range of luminescent thermometers that utilize thermally induced structural phase transitions in lanthanide-doped materials necessitates the exploration of novel host matrices with diverse thermal behaviors. In…

Recently topological superconductors emerge as a platform to realise Majorana Fermions which has potential application in topological quantum computation. Superconductivity in these materials can be realised by chemical doping, high…

Superconductivity · Physics 2021-08-19 M. Mandal , R. P. Singh

We investigate the interaction of tin alloying with tensile strain and n-type doping for improving the performance of a Ge-based laser for on-chip optical interconnects. Using a modified tight-binding formalism that incorporates the effect…

Materials Science · Physics 2016-11-03 David S. Sukhdeo , Krishna C. Saraswat , Birendra , Dutt , Donguk Nam

In the present work, we perform a systematic investigation on p-type codoping in (Ga,Mn)As. Through gradually increasing Zn doping concentration, the hole concentration increases, which should theoretically lead to an increase of the Curie…

Transition metal dichalcogenides (TMDs) have garnered attention for their potential in thermoelectric applications due to their unique electronic properties and tunable bandgaps. In this study, we systematically explore the electronic and…

Materials Science · Physics 2025-05-29 Parbati Senapati , Ajay Kumar , Prakash Parida

For $\beta$-$\mathrm{Ga_2O_3}$ only little information exist concerning the thermal properties, especially the thermal conductivity $\lambda$. Here, the thermal conductivity is measured by applying the electrical 3$\omega$-method on…

Materials Science · Physics 2015-02-10 Martin Handwerg , Rüdiger Mitdank , Zbigniew Galazka , Saskia F. Fischer

Scalable substitutional doping of two-dimensional (2D) transition metal dichalcogenides (TMDCs) is a prerequisite to developing next-generation logic and memory devices based on 2D materials. To date, doping efforts are still nascent. Here,…

We report on the design and demonstration of ${\beta}-(Al_{0.18}Ga_{0.82})_2O_3/Ga_2O_3$ modulation doped heterostructures to achieve high sheet charge density. The use of a thin spacer layer between the Si delta-doping and heterojunction…

In this paper we investigate, computationally and experimentally, the phase stability, electronic structure properties, and the propensity for n-type doping of In$_{2}$X$_{2}$O$_{7}$ (X=Si, Ge) ternary oxides. This family of materials…

Magnetic topological semimetals LnSbTe (Ln = Lanthanide) have attracted intensive attention because of the presence of interplay between magnetism, topological, and electron correlations depending on the choices of magnetic Ln elements.…

Two-dimensional transitional metal dichalcogenide (TMD) field-effect transistors (FETs) are promising candidates for future electronic applications, owing to their excellent transport properties and potential for ultimate device scaling.…

Very recently, a report on possible room-temperature superconductivity in N-doped lutetium hydrides near 1 GPa pressure has drawn lots of attentions. To date, the superconductivity is not confirmed under relatively low pressure in…

Superconductivity · Physics 2023-06-27 Zhenfeng Ouyang , Miao Gao , Zhong-Yi Lu

Structural, resistivity, thermoelectric power and magneto-transport properties of Cu doped Bi2Te3 topological insulators have been investigated. The occurrence of the tuning of charge carriers from n type to p type by Cu doping at Te sites…

Materials Science · Physics 2016-09-22 Abhishek Singh , Rahul Singh , A. Lakhani , T. Patel , G. S. Okram , V. Ganeshan , A. K. Ghosh , Sandip Chatterjee

We observed a large decrease of Tc by no more than 3 at.% of Zn doped to the optimized superconductor LaFeAsO0.85 (Tc = 26 K), confirmed by measurements of electrical resistivity, magnetic susceptibility, specific heat, M\"ossbauer…

We develop a simple chemical method to obtain bulk quantities of N-doped, reduced graphene oxide (GO) sheets through thermal annealing of GO in ammonia. X-ray photoelectron spectroscopy (XPS) study of GO sheets annealed at various reaction…

Materials Science · Physics 2009-10-07 Xiaolin Li , Hailiang Wang , Joshua T. Robinson , Hernan Sanchez , Georgi Diankov , Hongjie Dai