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Two-dimensional (2D) antimony (Sb, antimonene) recently attracted interest due to its peculiar electronic properties and its suitability as anode material in next generation batteries. Sb however exhibits a large polymorphic/allotropic…

In this paper, the structural, electronic, mechanical and optical properties of antimonene-bismuthene Van-der Waals heterostructure (Sb-Bi HS) were calculated based on the first principle density functional theory. We explored different…

介观与纳米尺度物理 · 物理学 2020-03-18 Shobair Mohammadi Mozvashi , Sahar Izadi Vishkayi , Meysam Bagheri Tagani

In this work, we have investigated the precursor effects to superconductivity in BaPb$_{0.75}$Bi$_{0.25}$O$_3$ using temperature dependent resistivity, x-ray diffraction technique and photoemission spectroscopy. The present compound…

超导电性 · 物理学 2023-01-02 M. Bharath , Jaskirat Brar , Himanshu Pant , Asif Ali , Sakshi Bansal , Ravi Shankar Singh , R. Bindu

We report magnetoresistive properties of direct and indirect band gap Bismuth-Antimony (Bi-Sb) alloys. Band gap increases with magnetic field. Large positive magnetoresistance (MR) approaching to 400 % is observed. Low field MR experiences…

材料科学 · 物理学 2015-06-22 Diptasikha Das , K. Malik , S. Bandyopadhyay , D. Das , S. Chatterjee , Aritra Banerjee

Bulk samples of $(Sn_{1-x}Sb_{x}O_{2-\delta})$ with x = 0.00, 0.10, 0.20, 0.30 are synthesized by solid-state reaction route. Samples were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission…

材料科学 · 物理学 2015-03-19 Rita Singh , Sushant Gupta , B. Das

Thermoelectric (TE) materials research plays a vital role in heat-to-electrical energy conversion and refrigeration applications. Bismuth-antimony (Bi-Sb) alloy is a promising material for thermoelectric cooling. Herein, a high figure of…

材料科学 · 物理学 2019-10-16 Sheng Gao , John Gaskins , Xixiao Hu , Kathleen Tomko , Patrick Hopkins , S. Joseph Poon

Elemental antimony (Sb) is a promising material for phase-change memory, neuromorphic computing and nanophotonic applications, because its compositional simplicity can prevent phase segregation upon extensive programming. Scaling down the…

First-principles calculations using the plane-wave pseudopotential method within the generalized gradient approximation method were performed to study the pressure dependence of the structural, elastic, electronic and optical properties for…

材料科学 · 物理学 2021-12-21 M. Radjai , A. Bouhemadou , D. Maouche

The electronic properties of single-layer antimony are studied by a combination of first-principles and tight-binding methods. The band structure obtained from relativistic density functional theory is used to derive an analytic…

材料科学 · 物理学 2017-02-23 A. N. Rudenko , M. I. Katsnelson , R. Roldán

The semimetallic Group V elements display a wealth of correlated electron phenomena due to a small indirect band overlap that leads to relatively small, but equal, numbers of holes and electrons at the Fermi energy with high mobility. Their…

Here, the structural, electronic and optical properties of the GaP1-xSbx/Si tandem materials association are determined in view of its use for solar water splitting applications. The GaPSb crystalline layer is grown on Si by Molecular Beam…

Applying the approximate DFT-1/2 quasiparticle scheme, band structure unfolding, and generalized quasichemical approximation to describe chemical and structural disorder, we investigate the electronic structure of Bi$_{1-x}$Sb$_x$ alloys…

材料科学 · 物理学 2017-11-27 F. L. Freitas

The crystal structure, superconducting properties, and electronic structure of a novel superconducting 122-type antimonide, BaPt$_2$Sb$_2$, have been investigated by measurements of powder X-ray diffraction patterns, electrical resistivity,…

Recent advances in experimental techniques and computational methods have significantly expanded the family of alkali antimonides, a class of semiconducting materials used as photocathodes in particle accelerators, unveiling new crystal…

材料科学 · 物理学 2025-03-11 Richard Schier , Caterina Cocchi

The thermodynamic properties of Bi-Sn were studied at 600 and 900K using a quasi-lattice theory. After successful fitting of Gibbs free energies of mixing and thermodynamic activities, the fitting parameters were used to investigate the…

材料科学 · 物理学 2021-03-25 Olugbenga Morayo Oshakuade , Oluseyi Ezekiel Awe

Polycrystalline samples of LiBC compounds, which were predicted as possible candidate for high-Tc superconductivity, have been synthesised by a flux method and investigated by means of electrical resistivity and magnetic susceptibility.…

超导电性 · 物理学 2009-11-07 Dmitri Souptel , Zakir Hossain , Gunter Behr , Wolfgang Loser , Christoph Geibel

Thermal variation of structural property, linear thermal expansion coefficient, resistivity, thermopower and power factor of polycrystalline Bi1-xSbx (x=0.10, 0.14) samples are reported. Temperature-dependent powder diffraction experiments…

材料科学 · 物理学 2013-12-16 K. Malik , Diptasikha Das , S. Bandyopadhyay , P. Mandal , A. K. Deb , Velaga Srihari , Aritra Banerjee

Co-adsorption of Bi and Sb on Ag(111) at room temperature yields a single-layer Bi(1-x)Sb(x) alloy with a rectangular 3xsqrt(3) structure containing four atoms per unit cell (2/3 ML total coverage) and lacking long-range chemical order. We…

Phase-change materials (PCMs) based on group IV, V, and VI elements, such as Ge, Sb, and Te, exhibit distinctive liquid-state features, including thermodynamic anomalies and unusual dynamical properties, which are believed to play a key…

Due to its exceptional lithium storage capacity silicon is considered as a promising candidate for anode material in lithium-ion batteries (LIBs). In the present work we demonstrate that methods of the soft X-ray emission spectroscopy…

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