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相关论文: Fluorides of silver under large compression

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The preparation of polymorphism control of Poly(vinylidene fluoride) (PVDF) by silver nanoparticles (Ag NPs) is investigated. The Ag NPs were prepared by simple one step process from AgNO3, where N,N-dimethylformamide(DMF) act as reducing…

材料科学 · 物理学 2011-09-06 Dipankar Mandal , Sun Yoon , Kap Jin Kim

We report 75As-NMR/NQR results on new iron-arsenide compounds (La0.5-xNa0.5+x)Fe2As2. The parent compound x=0 exhibits a stripe-type antiferromagnetic (AFM) order below T_N=130 K. The measurement of nuclear spin relaxation rate at…

超导电性 · 物理学 2019-10-04 T. Kouchi , M. Yashima , H. Mukuda , S. Ishida , H. Eisaki , Y. Yoshida , K. Kawashima , A. Iyo

We present the results of electrical resistivity, ac specific heat, magnetic susceptibility, X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD) of the ternary iron arsenide EuFe2As2 single crystal under…

We have investigated the nature of the antiferromagnetic (AF) phase induced by uniaxial stress sigma in URu2Si2, by performing elastic neutron scattering measurements up to 0.4 GPa. We have found that the AF Bragg-peak intensity shows a…

强关联电子 · 物理学 2007-05-23 M. Yokoyama , J. Nozaki , H. Amitsuka , K. Watanabe , S. Kawarazaki , H. Yoshizawa , J. A. Mydosh

Silver chromate ($\mathrm{Ag_{2}CrO_{4}}$) has attracted considerable attention in recent years due to its promising photocatalytic performance, which strongly depends on the crystallographic orientation of its exposed surfaces. A detailed…

We report on high-pressure $p \leq 45$ GPa resistivity measurements on the perovskite-related mixed-valent compound CsAuBr$_3$. The compounds high-pressure resistivity can be classified into three regions: For low pressures ($p < 10$ GPa)…

We report on experimental studies of the character of phase transitions in the quasi-1D organic compound (TMTSF)2PF6 in the close vicinity of the borders between the paramagnetic metal PM, antiferromagnetic insulator AF, and superconducting…

强关联电子 · 物理学 2009-11-10 A. V. Kornilov , V. M. Pudalov , Y. Kitaoka , K. Ishida , G. -q. Zheng , T. Mito , J. S. Qualls

In synthetic antiferromagnets (SAFs) the combination of antiferromagnetic order and synthesis using conventional sputtering techniques is combined to produce systems that are advantageous for spintronics applications. Here we present the…

Silver iodide (AgI) is a prototypical superionic conductor, undergoing a first-order phase transition at 147 Celsius that enables rapid ionic transport through its lattice, making it attractive for solid-state ionic devices. However, due to…

Evolutionary algorithms (EA) coupled with Density Functional Theory (DFT) calculations have been used to predict the most stable hydrides of phosphorous (PHn, n = 1-6) at 100, 150 and 200 GPa. At these pressures phosphine is unstable with…

超导电性 · 物理学 2015-12-15 Andrew Shamp , Tyson Terpstra , Tiange Bi , Zackary Falls , Patrick Avery , Eva Zurek

Actinide-bearing intermetallics display unusual electronic, magnetic, and physical properties which arise from the complex behavior of their 5$f$ electron orbitals. Temperature ($T$) effects on actinide intermetallics are well studied, but…

Electrical resistivity and ac-susceptibility measurements under high pressure were carried out in high-quality single crystals of $\alpha$-Mn. The pressure-temperature phase diagram consists of an antiferromagnetic ordered phase (0<$P$<1.4…

强关联电子 · 物理学 2020-09-30 Takaaki Sato , Kazuto Akiba , Shingo Araki , Tatsuo C. Kobayashi

Silver(II) compounds exhibit powerful oxidizing properties and strong magnetic superexchange. AgSO4 is a rare fluorine-free salt of Ag(II) which found some application in organic chemistry. Here, we report a discovery of a new AgSO4…

材料科学 · 物理学 2022-10-07 Mateusz Domanski , Zoran Mazej , Wojciech Grochala

Recently a big number of works devoted to search for new hydrides with record high-temperature superconductivity and at the same time the successful synthesis of potential high-TC superconducting FeH5 was reported. We present a systematic…

超导电性 · 物理学 2018-02-20 Alexander G. Kvashnin , Ivan A. Kruglov , Dmitrii V. Semenok , Artem R. Oganov

Nelson et al. [Phys. Rev. B 95, 054118 (2017)] recently have reported first-principles calculations on the behaviour of group-II difluorides (BeF$_{2}$, MgF$_{2}$, and CaF$_{2}$) under high-pressure and low- and high-temperature conditions.…

材料科学 · 物理学 2018-12-19 Claudio Cazorla , Daniel Errandonea

The stability of different stoichiometric H$_n$Br ($n$=1-7) compounds under pressure are extensively studied using density functional theory calculations. Five new energetically stable stoichiometries of H$_2$Br, H$_3$Br, H$_4$Br, H$_5$Br,…

超导电性 · 物理学 2015-04-07 Defang Duan , Fubo Tian , Xiaoli Huang , Da Li , Hongyu Yu , Yunxian Liu , Yanbin Ma , Bingbing Liu , Tian Cui

We report on the combined results of structural, magnetic, transport and calorimetric properties of Mn$_5$Si$_3$-type hexagonal Gd$_5$Sb$_3$. With decreasing temperature, it exhibits a ferromagnetic-like transition at 265 K, N\'{e}el…

材料科学 · 物理学 2023-06-27 S. Shanmukharao Samatham , Akhilesh Kumar Patel , K. G. Suresh

Based on first-principles calculations and ab initio molecular dynamics simulations, the polymerisation of the unsaturated cis dinitrogen-difluoride (cis-N2F2) molecular compound is investigated. The thermodynamic, dynamical and thermal…

材料科学 · 物理学 2025-03-14 Guo Chen , Ling Lin , Chengfeng Zhang , Jie Zhang , Gilles Frapper , Xianlong Wang

Measurements of magnetic susceptibility, specific heat, and electrical resistivity at applied pressures up to 55 kbar have been carried out on single crystals of the heavy-fermion antiferromagnet U_3Ni_5Al_19, which crystallizes in the…

强关联电子 · 物理学 2009-11-10 E. D. Bauer , V. A. Sidorov , S. Bobev , D. J. Mixson , J. D. Thompson , J. L. Sarrao , M. F. Hundley

Copper(II) silver(II) sulfate crystallizes in a monoclinic CuSO4-related structure with P21/n symmetry. This quasi-ternary compound features [Ag(SO4)2]2- layers, while the remaining cationic sites may be occupied either completely or…

材料科学 · 物理学 2023-10-16 Mateusz Domanski , Zoran Mazej , Wojciech Grochala