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相关论文: The pyrochlore Ho2Ti2O7: Synthesis, crystal growth…

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The crystallographic and physical properties of polycrystalline and single crystal samples of BaCo2As2 and K-doped Ba{1-x}K{x}Co2As2 (x = 0.06, 0.22) are investigated by x-ray and neutron powder diffraction, magnetic susceptibility chi,…

A "supercooled" liquid develops when a fluid does not crystallize upon cooling below its ordering temperature. Instead, the microscopic relaxation times diverge so rapidly that, upon further cooling, equilibration eventually becomes…

The influence of oxygen stoichiometry on the uranium local environment is explored in epitaxial single crystal uranium oxide thin films grown by DC magnetron sputtering. Through post-growth annealing, the stoichiometry of as-grown UO$_{2}$…

Holmium titanate (Ho$_2$Ti$_2$O$_7$) is a rare earth pyrochlore and a canonical example of a classical spin ice material. Despite the success of magnetic monopole models, a full understanding of the energetics and relaxation rates in this…

强关联电子 · 物理学 2019-03-28 Christopher A. Watson , Ilya Sochnikov , John R. Kirtley , Robert J. Cava , Kathryn A. Moler

Single crystals of the novel strontium osmate Sr3Os4O14 have been grown by the hydrothermal method using opposed anvil high-pressure and high-temperature technique. The reaction took place in sealed gold capsules at 3 GPa and a temperature…

材料科学 · 物理学 2023-09-13 N. D. Zhigadlo

We compare the superconducting phase-diagram under high magnetic fields (up to $H = 45$ T) of Fe$_{1+y}$Se$_{0.4}$Te$_{0.6}$ single crystals originally grown by the Bridgman-Stockbarger (BRST) technique, which were annealed to display…

We report the growth of single crystals of SrCu2As2, SrCu2Sb2, SrCu2(As{0.84}Sb{0.16})2 and BaCu2Sb2 using the self-flux technique and their structural, magnetic, thermal and transport properties that were investigated by powder x-ray…

Here we report successful single crystal growth of new possible magnetic topological insulator (MTI) FeBi2Te4 by self-flux method via vacuum encapsulation process. The detailed Rietveld analysis of Powder XRD data shows the as grown MTI…

材料科学 · 物理学 2020-04-29 Ankush Saxena , Poonam Rani , S. Patnaik , Vipin Nagpal , I. Felner , V. P. S. Awana

High quality electron-doped HTSC single crystals of $\rm Pr_{2-x}Ce_{x}CuO_{4+\delta}$ and $\rm Nd_{2-x}Ce_{x}CuO_{4+\delta}$ have been successfully grown by the container-free traveling solvent floating zone technique. The optimally doped…

材料科学 · 物理学 2010-10-18 Michael Lambacher , Toni Helm , Mark Kartsovnik , Andreas Erb

Dilute impurities and growth conditions can drastically affect the transport properties of TiSe$_2$, especially below the charge density wave transition. In this paper, we discuss the effects of cooling rate, annealing time and annealing…

强关联电子 · 物理学 2019-09-18 Jaime M. Moya , C. -L. Huang , Jesse Choe , Gelu Costin , Matthew S. Foster , E. Morosan

In many transition metal oxides (TMOs), oxygen stoichiometry is one of the most critical parameters that plays a key role in determining the structural, physical, optical, and electrochemical properties of the material. However, controlling…

材料科学 · 物理学 2016-02-12 Ho Nyung Lee , Sung S. Ambrose Seo , Woo Seok Choi , Christopher M. Rouleau

We investigated the high temperature decomposition behavior of wurtzite phase Ti$_{1-x}$Al$_{x}$N films using experimental methods and first-principles calculations. Single phase metastable wurtzite Ti$_{1-x}$Al$_{x}$N (x = 0.65, 0.75, 085…

We report a study on the crystal growth of the hexagonal manganites $R$MnO$_3$ ($R$ = Y, Lu, Ho, Er, and Tm) by using an optical floating-zone method. It was found that high-quality single crystals of $R$ = Y, Lu, and Ho could be easily…

强关联电子 · 物理学 2015-06-17 C. Fan , Z. Y. Zhao , J. D. Song , J. C. Wu , F. B. Zhang , X. F. Sun

We report on the growth of stoichiometric Sr$_2$IrO$_4$ single crystals, which allow us to unveil their intrinsic magnetic properties. The effect of different growth conditions has been investigated for crystals grown by the flux method. We…

强关联电子 · 物理学 2016-04-27 N. H. Sung , H. Gretarsson , D. Proepper , J. Porras , M. Le Tacon , A. V. Boris , B. Keimer , B. J. Kim

BaTiO3 is a technologically relevant material in the perovskite oxide class with above room temperature ferroelectricity and a very large electro optical coefficient, making it highly suitable for emerging electronic and photonic devices.…

We present an extensive study on the effect of substrate orientation, strain, stoichiometry and defects on spin ice physics in Ho$_2$Ti$_2$O$_7$ thin films grown onto yttria-stabilized-zirconia substrates. We find that growth in different…

The pyrochlore magnet $\rm Yb_2Ti_2O_7$ has been proposed as a quantum spin ice candidate, a spin liquid state expected to display emergent quantum electrodynamics with gauge photons among its elementary excitations. However, $\rm…

强关联电子 · 物理学 2018-06-20 Gabriele Sala , Dalini D. Maharaj , Matthew B. Stone , Hanna A. Dabkowska , Bruce D. Gaulin

Structural disorder in the magnetically frustrated pyrochlore system leads to intriguing magnetic states. We present the thermodynamic behavior and short range magnetic correlations in Tb$_{2}$Zr$_{2}$O$_{7}$ and…

强关联电子 · 物理学 2026-04-16 Sujata Singh , Leon Carstens , M. Duc Le , R. Klingeler , C. S. Yadav

Thermal decomposition behaviors of TiH2 powder under a flowing helium atmosphere and in a low vacuum condition have been studied by using in-situ EXAFS technique. By an EXAFS analysis containing the multiple scattering paths including H…

材料科学 · 物理学 2015-06-17 Ying-Li Zhou , Li-Rong Zheng , Sheng-Qi Chu , Min Wu , Peng-Fei An , Jing Zhang , Tian-Dou Hu

Little is so far known about the magnetism of the $\rm A_2B_2O_7$ monoclinic layered perovskites that replace the spin-ice supporting pyrochlore structure for $r_A/r_B>1.78$. We show that high quality monoclinic Pr$_2$Ti$_2$O$_7$ single…