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Related papers: Exotic compositional ordering in Mn-Ni-As intermet…

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The crystal structure of a disordered form of Cr$_{1/3}$NbS$_2$ has been characterized using diffraction and inelastic scattering of synchrotron radiation. In contrast to the previously reported symmetry (P6$_3$22), the crystal can be…

Materials Science · Physics 2015-05-27 V. Dyadkin , F. Mushenok , A. Bosak , D. Menzel , S. Grigoriev , P. Pattison , D. Chernyshov

The local environment of nickel atoms in Y NiO3 across the pressure- induced insulator to metal (IM) transition was studied using X-ray absorption spectroscopy (XAS) supported by ab initio calculations. The monotonic contraction of the NiO6…

Strongly Correlated Electrons · Physics 2015-06-03 A. Y. Ramos , C. Piamonteze , H. C. N. Tolentino , O. Bunau , Y. Joly , S. Grenier , J. -P. Itie , N. E. Massa , J. A. Alonso , M. J. Martinez-Lope

A caged compound CeOs2Al10, crystallizing in the orthorhombic YbFe2Al10-type structure, undergoes a mysterious phase transition at T_0=29 K. We report the results of electron diffraction, magnetization, and magnetoresistance for single…

Strongly Correlated Electrons · Physics 2015-05-19 Y. Muro , J. Kajino , K. Umeo , K. Nishimoto , R. Tamura , T. Takabatake

The atomic pair distribution function (PDF) technique is employed to probe the atomic local structural responses in naturally double layered manganites \lsmo in the doping range $0.54 \leq x \leq 0.80$. Our low temperature neutron powder…

Strongly Correlated Electrons · Physics 2009-11-10 Xiangyun Qiu , Simon J. L. Billinge , Carmen R. Kmety , John F. Mitchell

Recently, orthorhombic CuMnAs has been proposed to be a magnetic material where topological fermions exist around the Fermi level. Here we report the magnetic structure of the orthorhombic Cu0.95MnAs and Cu0.98Mn0.96As single crystals.…

Materials Science · Physics 2017-12-13 Eve Emmanouilidou , Huibo Cao , Peizhe Tang , Xin Gui , Chaowei Hu , Bing Shen , Junyi Wu , Shou-Cheng Zhang , Weiwei Xie , Ni Ni

Resonant soft x-ray diffraction has been used to probe the temperature dependent orbital and magnetic structure of $\mathrm{LaSr_{2}Mn_{2}O_7}$. Previous crystallographic studies have shown that this material has almost no MnO$_{6}$ oxygen…

Strongly Correlated Electrons · Physics 2007-05-23 S. B. Wilkins , N. Stojic , T. A. W. Beale , N. Binggeli , P. Bencok , S. Stanescu , J. F. Mitchell , P. Abbamonte , P. D. Hatton , M. Altarelli

The atomic structure of Ni64.5Zr35.5 metallic glass has been investigated by molecular dynamics (MD) simulations. The calculated structure factors from the MD glassy sample at room temperature agree well with the X-ray diffraction (XRD) and…

Mesoscale and Nanoscale Physics · Physics 2018-03-14 Ling Tang , Tongqi Wen , Nan Wang , Yang Sun , Feng Zhang , Zejin Yang , Kai-Ming Ho , Cai-Zhuang Wang

The layered {\beta}-NaMnO2, a promising Na-ion energy-storage material has been investigated for its triangular lattice capability to promote complex magnetic configurations that may release symmetry restrictions for the coexistence of…

The shapes of neutron-rich exotic Ni isotopes are studied. Large-scale shell model calculations are performed by advanced Monte Carlo Shell Model (MCSM) for the $pf$-$g_{9/2}$-$d_{5/2}$ model space. Experimental energy levels are reproduced…

Nuclear Theory · Physics 2015-06-17 Y. Tsunoda , T. Otsuka , N. Shimizu , M. Honma , Y. Utsuno

Resistivity, magnetic susceptibility, neutron scattering and x-ray crystallography measurements were used to study the evolution of magnetic order and crystallographic structure in single-crystal samples of the Ba1-xSrxFe2As2 and…

Superconductivity · Physics 2012-09-06 K. Kirshenbaum , N. P. Butch , S. R. Saha , P. Y. Zavalij , B. G. Ueland , J. W. Lynn , J. Paglione

New intercalation compounds Cr$_x$ZrTe$_2$ were synthesized in the Cr concentration range of x=0-0.3. A thorough study of the crystal and electronic structure has been performed. It was found that there is competition in the distribution of…

Neutron diffraction measurements of a high quality single crystal of CaFe2As2 are reported. A sharp transition was observed between the high temperature tetragonal and low temperature orthorhombic structures at TS = 172.5K (on cooling) and…

The orthorhombic compound NdFe$_2$Al$_{10}$ has been studied by powder and single-crystal neutron diffraction. Below $T_N$ = 3.9 K, the Nd$^{3+}$ magnetic moments order in a double-$k$ [$\mathbf{k}_1 = (0, \frac{3}{4}, 0)$, $\mathbf{k}_2 =…

Strongly Correlated Electrons · Physics 2014-12-31 J. Robert , F. Damay , K. Saito , A. M. Bataille , F. Porcher , G. André , A. Gukasov , J. -M. Mignot , H. Tanida , M. Sera

Antiferromagnetic (AF) order of U$_{2}$Pt$_{6}$Ga$_{15}$ with the ordering temperature $T_{\rm N}$ = 26 K was investigated by resonant X-ray scattering and neutron diffraction on single crystals. This compound possesses a unique crystal…

Strongly Correlated Electrons · Physics 2024-03-26 Chihiro Tabata , Fusako Kon , Kyugo Ota , Ruo Hibino , Yuji Matsumoto , Hiroshi Amitsuka , Hironori Nakao , Yoshinori Haga , Koji Kaneko

The metal-hydride-based topochemical reduction process has produced novel thermodynamically unstable phases across various transition metal oxide series with unusual crystal structures and non-trivial ground states. Here, by such an oxygen…

Five compounds were investigated for magnetic character and superconductivity, all with non-magnetic nickel and band structures containing flat bands and steep bands. The syntheses and crystal structures, refined by powder X-ray…

Superconductivity · Physics 2007-08-16 K. L. Holman , E. Morosan , P. A. Casey , Lu Li , N. P. Ong , T. Klimczuk , C. Felser , R. J. Cava

Ba2MnTeO6 was first characterised using X-ray diffraction and reported to show a small distortion1 from the idealised cubic perovskite which displays face-centred cubic arrangement of Mn2+. A recent report has asserted that this leads to a…

What kind of one-dimensional modulated nematic structures (ODMNS) can form nonchiral and chiral bent-core and dimeric materials? Here, using Landau-deGennes theory of nematics, extended to account for molecular steric polarization, we study…

Soft Condensed Matter · Physics 2016-04-22 Lech Longa , Grzegorz Pająk

Using density-functional theory within the generalized gradient approximation, we show that Si-based heterostructures with 1/4 layer $\delta$-doping of {\em interstitial} Mn (Mn$_{\mathrm int}$) are half-metallic. For Mn$_{\mathrm int}$…

Materials Science · Physics 2007-05-23 Hua Wu , Peter Kratzer , Matthias Scheffler

We report a high-resolution neutron diffraction study of the crystal and magnetic structure of the orbitally-degenerate frustrated metallic magnet AgNiO2. At high temperatures the structure is hexagonal with a single crystallographic Ni…

Strongly Correlated Electrons · Physics 2009-11-13 E. Wawrzynska , R. Coldea , E. M. Wheeler , T. Sorgel , M. Jansen , R. M. Ibberson , P. G. Radaelli , M. M. Koza