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Density functional theory based study of the pressure dependent physical properties of binary SnS compound has been carried out. The computed elastic constants reveal that SnS is mechanically stable and brittle under ambient conditions.…

材料科学 · 物理学 2022-10-31 Ayesha Tasnim , Md. Mahamudujjaman , Md. Asif Afzal , R. S. Islam , S. H. Naqib

This article reports the study of SnO by using the first-principles pseudopotential plane-wave method within the generalized gradient approximation (GGA). We have calculated the structural, elastic, electronic and optical of SnO under high…

材料科学 · 物理学 2016-09-21 Md. Ashraf Ali , A. K. M. Azharul Islam , Nusrat Jahan , Syeda Karimunnesa

We study the structural evolution of Sr$_3$Ir$_2$O$_7$ as a function of pressure using x-ray diffraction. At a pressure of 54 GPa at room temperature, we observe a first-order structural phase transition, associated with a change from…

We systematically study the effect of high pressure on the structure, electronic structure and transport properties of 2H-MoS$_2$, based on first-principles density functional calculations and the Boltzmann transport theory. Our calculation…

材料科学 · 物理学 2013-09-18 Huaihong Guo , Teng Yang , Peng Tao , Yong Wang , Zhidong Zhang

First-principles investigation within the density functional theory is utilized to explore the physical properties of a superconducting topological semimetal Sn4Au under pressure within the range of 0-5 GPa. According to the computed…

材料科学 · 物理学 2024-08-15 M. Abdul Hadi Shah , M. I. Naher , S. H. Naqib

We found that under pressure SnO with alpha-PbO structure, the same structure as in many Fe-based superconductors, e.g. beta-FeSe, undergoes a transition to a superconducting state for p > 6 GPa with a maximum Tc of 1.4 K at p = 9.3 GPa.…

Electrical transport in oxide thin films under high pressure remains largely unexplored due to the lack of a universal experimental strategy. Here we develop an approach that enables high-pressure transport measurements in freestanding…

We present results of electronic band structure, Fermi surface and electron transport properties calculations in orthorhombic $n$- and $p$-type SnSe, applying Korringa-Kohn-Rostoker method and Boltzmann transport approach. The analysis…

材料科学 · 物理学 2015-05-11 K. Kutorasinski , B. Wiendlocha , S. Kaprzyk , J. Tobola

The structures, optical and electrical transport properties of SnO$_2$ films, fabricated by rf sputtering method at different oxygen partial pressures, were systematically investigated. It has been found that preferred growth orientation of…

材料科学 · 物理学 2014-02-11 Yu-Chen Ji , Hua-Xing Zhang , Xing-Huang Zhang , Zhi-Qing Li

The electronic structure, Fermi surface and elastic properties of the iso-structural and iso-electronic LaSn$_3$ and YSn$_3$ intermetallic compounds are studied under pressure within the framework of density functional theory including…

材料科学 · 物理学 2013-11-07 Swetarekha Ram , V. Kanchana , G. Vaitheeswaran , A. Svane , S. B. Dugdale , N. E. Christensen

Structural changes in REMnO3 (RE= Y, Ho, Lu) under high pressure were examined by synchrotron x-ray diffraction methods at room temperature. Compression occurs more readily in the ab plane than along the c-axis. Under hydrostatic pressure…

材料科学 · 物理学 2015-05-20 P. Gao , Z. Chen , T. A. Tyson , T. Wu , K. H. Ahn , Z. Liu , R. Tappero , S. B. Kim , S. -W. Cheong

Sr3Ir4Sn13 is an interesting compound showing a coexistence of structural phase transition and superconductivity. The structural phase transition at 147 K leads to the formation of a superlattice. We performed optical spectroscopy…

超导电性 · 物理学 2014-07-23 A. F. Fang , X. B. Wang , P. Zheng , N. L. Wang

Ab initio electronic structure calculations based on density functional theory and tight-binding methods for the thermoelectric properties of p-type Sb$_2$Te$_3$ films are presented. The thickness-dependent electrical conductivity and the…

Using first principles calculations, we have studied the structural and elastic properties of SrTMO3 (TM = Rh, Ti, Mo, Zr) under pressure by the plane wave pseudopotential method based on the density functional theory (DFT) within the…

材料科学 · 物理学 2016-07-12 Md. Lokman Ali , Md. Zahidur Rahaman

The goal of this work is studying the evolution of thermoelectric transport across the members of the Ruddlesden-Popper series iridates Srn+1IrnO3n+1, where a metal-insulator transition driven by bandwidth change occurs, from the strongly…

强关联电子 · 物理学 2016-01-22 I. Pallecchi , M. T. Buscaglia , V. Buscaglia , E. Gilioli , G. Lamura , F. Telesio , M. R. Cimberle , D. Marre'

Sr2VO{3-delta}FeAs superconductors with different oxygen deficiencies have been successfully fabricated. It is found that the superconducting transition temperature drops down monotonically with the increase of oxygen deficiency. The…

超导电性 · 物理学 2016-06-28 Fei Han , Xiyu Zhu , Gang Mu , Peng Cheng , Bing Shen , Bin Zeng , Hai-Hu Wen

Perovskite SrIrO3 (SIO) films epitaxially deposited with a thickness of about 60 nm on various substrate materials display nearly strain-relieved state. Films grown on orthorhombic (110) DyScO3 (DSO) are found to display untwinned bulk-like…

强关联电子 · 物理学 2018-09-19 K. R. Kleindienst , K. Wolff , J. Schubert , R. Schneider , D. Fuchs

Pressure induced electronic topological transitions in the wide band gap semiconductor Sb2S3 (Eg = 1.7-1.8 eV) with similar crystal symmetry (SG: Pnma) to its illustrious analog, Sb2Se3, has been studied using Raman spectroscopy,…

Recently, we reported [M. Wagner et al., J. Mater. Res. 26, 1886 (2011)] transport measurements on the semiconducting intermetallic system RuIn3 and its substitution derivatives RuIn_{3-x}A_{x} (A = Sn, Zn). Higher values of the…

材料科学 · 物理学 2015-05-30 Deepa Kasinathan , Maik Wagner , Klaus Koepernik , Raul Cardoso-Gil , Yu. Grin , Helge Rosner

We have investigated the electronic, vibrational, optical, thermal and piezoelectric properties of LiNbO$_3$, LiTaO$_3$ and Li$_2$NbTaO$_6$ using the first-principles calculation based on the density functional theory. It also shows…

材料科学 · 物理学 2025-03-28 Debidutta Pradhan , Rojalin Swain , Souvagya Kumar Biswal , Jagadish Kumar
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