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Related papers: Complementary ab initio and X-ray nano-diffraction…

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Recently, osmium diboride (OsB2) has attracted considerable attention as an incompressible and hard material. We investigate the structural property, elastic constants, and electronic structure of orthorhombic OsB2 by the first-principles…

Materials Science · Physics 2007-05-23 Z. F. Hou

Nanocrystalline n-AlO(OH) (Disperal P2(R) of Sasol) was investigated by means of the atomic pair distribution function (PDF). The PDF is derived from powder diffraction data, an ideally resolved PDF is obtained from a synchrotron source…

Materials Science · Physics 2008-04-24 Stefan Bruehne , Saskia Gottlieb , Wolf Assmus , Edith Alig , Martin U. Schmidt

Rearrangement of atoms due to broken translational symmetries at the surface of SrTiO$_3$ is scarcely debatable in the present day scenario. Actual concern demands to unveil the true structure and precise mechanism responsible for atomic…

Materials Science · Physics 2018-11-08 Adeel Y Abid , Ning Li , Ayaz Arif , Peng Gao

The magnetic structure of BaFe2As2 was completely determined from polycrystalline neutron diffraction measurements soon after the ThCr2Si2-type FeAs-based superconductors were discovered. Both the moment direction and the in-plane…

Superconductivity · Physics 2009-05-08 M. Kofu , Y. Qiu , Wei Bao , S. -H. Lee , S. Chang , T. Wu , G. Wu , X. H. Chen

The crystal structure and oxygen stoichiometry in two-layer Na0.74CoO2 and Na0.38CoO2 at room temperature are analyzed by powder neutron diffraction. Two sets of diffraction data for each sample, taken at different incident neutron…

Strongly Correlated Electrons · Physics 2009-11-11 L. Viciu , Q. Huang , R. J. Cava

In order to reveal the atomic level structure of liquid carbon tetrabromide, a new synchrotron x-ray diffraction measurement, over a wide momentum transfer (Q-)range, has been performed. These x-ray data have been interpreted together with…

Materials Science · Physics 2014-07-02 László Temleitner

We propose a mathematical description of crystal structure: underlying translational periodicity together with the distinct atomic positions up to the symmetry operations in the unit cell. It is consistent with the international table of…

Materials Science · Physics 2020-10-12 Mostafa Karami , Nobumichi Tamura , Yong Yang , Xian Chen

Crystal structure, electronic structure, and magnetic behavior of the spin-1/2 quantum magnet Na1.5VOPO4F0.5 are reported. The disorder of Na atoms leads to a sequence of structural phase transitions revealed by synchrotron x-ray powder…

The fluorine-doped rare-earth iron oxyarsenides, REFeAsO1-xFx (RE =rare earth) have recently emerged as a new family of high-temperature superconductors with transition temperatures (Tc) as high as 55 K (refs 1-4). Early work has provided…

By tackling the challenge of extending transparent oxide semiconductors to Ge based oxides, we have found a not-yet-reported crystal structure, named $\beta$-SrGe$_2$O$_5$, which is composed of edge-sharing GeO$_6$ octahedra interconnected…

Extensive X-ray and neutron scattering experiments and additional transmission electron microscopy results reveal the partial decomposition of Nd2-xCexCuO4 (NCCO) in a low-oxygen-fugacity environment such as that typically realized during…

The determination by powder neutron diffraction of the ambient temperature crystal structures of compounds in the NaxCoO2 family, for 0.3 < x <= 1.0, is reported. The structures consist of triangular CoO2 layers with Na ions distributed in…

Strongly Correlated Electrons · Physics 2009-11-10 Q. Huang , M. L. Foo , R. A. Pascal , J. W. Lynn , B. H. Toby , Tao He , H. W. Zandbergen , R. J. Cava

We investigated the crystal structure and lattice excitations of the ternary intermetallic stannide Ca3Ir4Sn13 using neutron and x-ray scattering techniques. For T > T* ~ 38 K the x-ray diffraction data can be satisfactorily refined using…

Recently the oxygen-reconstructed tantalum surface Ta(001)-p(3$\times$3)-O has experienced considerable attention due its use as a potential platform for Majorana physics in adatom chains. Experimental studies using scanning tunneling…

Mesoscale and Nanoscale Physics · Physics 2019-10-02 R. Mozara , A. Kamlapure , M. Valentyuk , L. Cornils , A. I. Lichtenstein , J. Wiebe , R. Wiesendanger

The quasi-one-dimensional antiferromagnetic Ising-like compound BaCo2V2O8 has been shown to be describable by the Tomonaga-Luttinger liquid theory in its gapless phase induced by a magnetic field applied along the Ising axis. Above 3.9 T,…

Strongly Correlated Electrons · Physics 2015-08-11 B. Grenier , V. Simonet , B. Canals , P. Lejay , M. Klanjsek , M. Horvatic , C. Berthier

We report bulk superconductivity at 2.5K in LaO0.5F0.5BiSe2 compound through the DC magnetic susceptibility and electrical resistivity measurements. The synthesized LaO0.5F0.5BiSe2 compound is crystallized in tetragonal structure with space…

Superconductivity · Physics 2015-09-03 Rajveer Jha , V. P. S. Awana

The electro-magnetic properties of ultrathin epitaxial ruthenate films have long been the subject of debate. Here we combine experimental with theoretical investigations of (SrTiO3)5-(SrRuO3)n-(SrTiO3)5 (STO5-SROn-STO5) heterostructures…

Strongly Correlated Electrons · Physics 2022-03-04 Zeeshan Ali , Zhen Wang , Andrew O'Hara , Mohammad Saghayezhian , Donghan Shin , Yimei Zhu , Sokrates T. Pantelides , Jiandi Zhang

The Co-doped anatase TiO$_{2}$, a recently discovered room-temperature ferromagnetic insulator, has been studied by the first-principles calculations in the pseudo-potential plane-wave formalism within the local-spin-density approximation…

Materials Science · Physics 2007-05-23 Hongming Weng , Xiaoping Yang , Jinming Dong , H. Mizuseki , M. Kawasaki , Y. Kawazoe

LiNi0.5Mn1.5O4, which has a spinel framework structure, is a promising candidate for the cathode material of next-generation lithium-ion batteries with high energy density. We investigate the structural transition in LixNi0.5Mn1.5O4 (0 <= x…

Materials Science · Physics 2013-02-05 Ippei Kishida , Kengo Orita , Atsutomo Nakamura , Yoshiyuki Yokogawa

We report the structural, mechanical, electronic, optical, thermoelectric properties and spectroscopic limited maximum efficiency (SLME) of oxide double perovskite structure Ba2SbNbO6 and Ba2SbTaO6 compounds. All the investigations were…

Materials Science · Physics 2021-06-29 Hansraj , K. C. Bhamu , Sung Gu Kang , A. K. Kushwaha , D. P. Rai , Subrahmanyam Sappati , J. Sahariya , Amit Soni
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