中文
相关论文

相关论文: Thermodynamic Origins of Structural Metastability …

200 篇论文

The crystal structure, anisotropic electrical resistivity and magnetic susceptibility, as well as specific heat results from single crystals of BaFe2As2, BaNi2As2, and BaFeNiAs2 are surveyed. BaFe2As2 properties demonstrate the equivalence…

Two-dimensional (2D) materials have garnered significant attention in recent years due to their atomically thin structure and unique electronic and optoelectronic properties. To harness their full potential for applications in…

The lack of thermal stability, originating from their metastable nature, has been one of the paramount obstacles that hinder the wide range of applications of metallic glasses. We report that the stability of a metallic glass can be…

BaPd2As2 belongs to 122 pnictide group, famous for exhibiting superconductivity at high temperatures and other electronic correlations. Unlike the 122 iron arsenides, BaPd2As2 exhibits superconductivity at low temperature when realized in…

超导电性 · 物理学 2018-10-31 F. Parvin , S. H. Naqib

Well-established textbook arguments suggest that static electric susceptibility must be positive in "all bodies" [1]. However, it has been pointed out that media that are not in thermodynamic equilibrium are not necessarily subject to this…

应用物理 · 物理学 2020-01-29 F. Castles , J. A. J. Fells , D. Isakov , S. M. Morris , A. Watt , P. S. Grant

Layered and two-dimensional (2D) materials such as graphene, boron nitride, transition metal dichalcogenides(TMDCs), and black phosphorus (BP) have intriguing fundamental physical properties and bear promise of numerous important…

Black body materials prove promising candidates to meet future energy demands as they are able to harvest energy from the total bandwidth of solar radiation. Here, we report on high absorption (> 98 %) near-black body-like structures…

From in-situ ellipsometric measurements during condensation of As4 molecular beam on GaAs(001) substrate the arsenic sticking coefficient was determined. For the substrate with Ga-rich surface reconstruction at 60C the sticking coefficient…

材料科学 · 物理学 2007-05-23 Andrey V. Vasev , Sergey I. Chikichev

The electronic structure and thermodynamic stability of tetragonal $\rm{BiFeO_3}$(001) surfaces have been investigated using density functional theory. In this work, four different structures having different lattice constants with two…

材料科学 · 物理学 2022-05-13 Soumyasree Jena , Sanjoy Datta

In this paper, nominal compositions of NdFeAsO0.8F0.2, NdFeAs0.95Sb0.05O0.8F0.2 and NdFeAs0.95P0.05O0.8F0.2 were prepared by one step solid state reaction method. The structural, electrical and morphological properties of samples were…

材料科学 · 物理学 2019-01-04 Z. Alborzi , V. Daadmehr

In the fast growing two-dimensional (2D) materials family, anisotropic 2D materials, with their intrinsic in-plane anisotropy, exhibit a great potential in optoelectronics. One such typical material is black phosphorus (BP), with a…

介观与纳米尺度物理 · 物理学 2019-10-14 Chong Wang , Guowei Zhang , Shenyang Huang , Yuangang Xie , Hugen Yan

We investigate the Gauss-Bonnet black hole in five dimensional anti-de Sitter spacetimes (GBAdS). We analyze all thermodynamic quantities of the GBAdS, which is characterized by the Gauss-Bonnet coupling $c$ and mass $M$, comparing with…

广义相对论与量子宇宙学 · 物理学 2008-12-18 Yun Soo Myung , Yong-Wan Kim , Young-Jai Park

DFT and AIMD are used to investigate the structural, stability, electronic, thermal, and optical properties of the quasi-2D C2N2O structure. The structure exhibits thermal and energy stability, signifying robustness under ambient…

材料科学 · 物理学 2026-04-30 Hemn. G. H , Nzar. R. Abdullah , Vidar Gudmundsson

One dimensional lepidocrocite titanium dioxide filaments are investigated with respect to their thermal and aqueous stability. Structural and phase evolution are examined using in situ heating in vacuum within transmission electron…

Today the study of two-dimensional (2D) materials has become one of the key objectives of materials science. Unlike their three-dimensional counterparts, 2D materials can simultaneously demonstrate unique transport and mechanical properties…

材料科学 · 物理学 2021-03-16 Arslan B. Mazitov , Artem R. Oganov

We investigate the thermodynamic stability of neutral black objects with (at least) two angular momenta. We use the quasilocal formalism to compute the grand canonical potential and show that the doubly spinning black ring is…

高能物理 - 理论 · 物理学 2015-05-18 Dumitru Astefanesei , Maria J. Rodriguez , Stefan Theisen

Since its discovery, the environmental instability of exfoliated black phosphorus (2D bP) has emerged as a challenge that hampers its wide application in chemistry, physics, and materials science. Many studies have been carried out to…

The stability and electronic structure of a single monatomic Al wire has been studied using the ab initio pseudopotential method. The Al wire undergoes two structural rearrangements under compression, i.e., zigzag configurations at angles…

材料科学 · 物理学 2015-06-24 Jin-Cheng Zheng , Hui-Qiong Wang , A. T. S. Wee , C. H. A. Huan

The crystal structure and electrical resistance of the structurally-layered EuFe2As2 have been studied up to 70 GPa and down to temperature of 10 K, using a synchrotron x-ray source and the designer diamond anvils. The room-temperature…

The adhesion of two-dimensional (2D) materials to other surfaces is so far believed to be a solid-solid mechanical contact. Here, we conduct both atomistic simulations and theoretical modeling to show that there exists a reversible…

材料科学 · 物理学 2015-12-08 Zhengrong Guo , Tienchong Chang , Xingming Guo , Huajian Gao