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Related papers: Phase Equilibria and Crystal Growth for LiREF4 Sch…

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Single crystals of flux-grown tetragonal GdFe4Al8 were characterized by thermodynamic, transport, and x-ray resonant magnetic scattering measurements. In addition to antiferromagnetic order at TN ~ 155 K, two low-temperature transitions at…

High-quality single crystals are essentially needed for the investigation of the novel bulk properties of unconventional superconductors. The availability of such crystals grown by the floating-zone method has helped to unveil the…

Superconductivity · Physics 2019-01-08 J. S. Bobowski , N. Kikugawa , T. Miyoshi , H. Suwa , S. Yonezawa , D. A. Sokolov , A. P. Mackenzie , Y. Maeno

Using the correlative method of unsymmetrized self-consistent field for strongly anharmonic crystals, the thermodynamic stability and the mechanism its loss is studied for crystals with various types of the chemical bond. The following…

Statistical Mechanics · Physics 2015-06-24 V. I. Zubov

Strong Stark splitting, which is nearly independent of the R-ions replacement, has been observed through the photoluminescence investigation of electronic ferroelectric Er1-xYbxFe2O4 (x=0, 0.8, 0.9 and 0.95). Initially multiple radiative…

Strongly Correlated Electrons · Physics 2012-07-05 R. Wang , H. X. Yang , Y. B. Qin , B. Dong , J. Q. Li , Jimin Zhao

We investigate the crystal structure and the electronic properties of the trilayer nickelate La$_4$Ni$_3$O$_{10}$ by means of quantum mechanical calculations in the framework of the density functional theory. We find that, at low…

Strongly Correlated Electrons · Physics 2018-03-15 Danilo Puggioni , James M. Rondinelli

We have investigated charge dynamics and electronic structures for single crystals of metallic layered nickelates, R2-xSrxNiO4 (R=Nd, Eu), isostructural to La2-xSrxCuO4. Angle-resolved photoemission spectroscopy on the barely-metallic…

Strongly Correlated Electrons · Physics 2015-05-20 M. Uchida , K. Ishizaka , P. Hansmann , Y. Kaneko , Y. Ishida , X. Yang , R. Kumai , A. Toschi , Y. Onose , R. Arita , K. Held , O. K. Andersen , S. Shin , Y. Tokura

We investigate the constraints on the superfluid fraction of an amorphous solid following from an upper bound derived by Leggett. In order to accomplish this, we use as input density profiles generated for amorphous solids in a variety of…

Disordered Systems and Neural Networks · Physics 2011-04-01 Giulio Biroli , Bryan Clark , Laura Foini , Francesco Zamponi

Melting in 2D is described by the celebrated Kosterlitz-Thouless-Halperin-Nelson-Young (KTHNY) theory. The unbinding of two different types of topological defects destroys translational and orientational order at different temperatures. The…

Soft Condensed Matter · Physics 2024-11-12 Robert Löffler , Lukas Siedentop , Peter Keim

We report on the single crystal growth of Eu(Pd$_{1-x}$Au$_x$)$_2$Si$_2$, $0< x\leq 0.2$, from a levitating Eu-rich melt using the Czochralski method. Our structural analysis of the samples confirms the ThCr$_2$Si$_2$-type structure as well…

Banded spherulitic growth of crystal is observed in some materials with spherically symmetric growth front and periodic radial variation of birefringence. This variation of birefringence in quasi two dimensional geometry produces concentric…

Materials Science · Physics 2022-03-18 Subhadip Ghosh , Dipak Patra , Arun Roy

We report the growth of mm-sized Pmnb-Li2FeSiO4 single crystals by means of the optical floating-zone method at high argon pressure and describe the conditions required for a stable growth process. The crystal structure is determined and…

(NaxKy)FezSe2 crystals are prepared by Na, Fe, and Se as starting materials in NaCl/KCl flux at low temperatures~720 {\deg}C. It is found that K is more preferred than Na to enter in between FeSe layers and forms the phase. Thus-obtained…

Superconductivity · Physics 2014-08-12 Gang Wang , Tianping Ying , Yaobo Huang , Shifeng Jin , Lei Yan , Hong Ding , Xiaolong Chen

Hard spheres with a polydispersity above approximately 8% are shown to crystallise into two phase-separated solid phases. A polydispersity above 8% is too large to be tolerated by a single solid phase but phase separation produces two…

Soft Condensed Matter · Physics 2009-10-31 Richard P. Sear

If a surface stabilized ferroelectric liquid crystal cell is cooled from the smectic-A to the smectic-C phase, its layers thin causing V-shaped (chevron like) defects to form. These create an energy barrier that can prevent switching…

Analysis of PDEs · Mathematics 2016-11-14 Lidia Mrad , Daniel Phillips

We present new experimental data on major and trace element partition coefficients between alkali feldspar and trachytic melt. Experiments were conducted at 500 MPa, 870 890 {\deg}C to investigate through short disequilibrium and long near…

We report a combined experimental and theoretical study on intriguing magnetic properties of quasiferroelectric orthochromates. Large single crystals of the family of RECrO$_3$ (RE = Y, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) compounds were…

Bulk metallic glass forms when liquid metal alloys solidify without crystalization. In the search for Iron-based bulk glass-forming alloys of the metal-metalloid type (Fe-B- and Fe-C-based), crystals based on the structural prototype C6Cr23…

Materials Science · Physics 2009-11-10 M. Widom , M. Mihalkovic

The rare earth nickelates RNiO3 are metallic at high temperatures and insulating and magnetically ordered at low temperatures. The low temperature phase has been predicted to be type II multiferroic, i.e. ferroelectric and magnetic order…

Strongly Correlated Electrons · Physics 2021-07-05 I. Ardizzone , J. Teyssier , I. Crassee , A. B. Kuzmenko , D. G. Mazzone , D. J. Gawryluk , M. Medarde , D. van der Marel

The filled skutterudite compound SmOs_{4}Sb_{12} was prepared in single crystal form and characterized. The SmOs_{4}Sb_{12} crystals have the LaFe_{4}P_{12}-type structure with lattice parameter a = 9.3085 Angstroms. Specific heat…

Strongly Correlated Electrons · Physics 2009-11-10 W. M. Yuhasz , N. A. Frederick , P. -C. Ho , N. P. Butch , B. J. Taylor , T. A. Sayles , M. B. Maple , J. B. Betts , A. H. Lacerda , P. Rogl , G. Gieste

Femtosecond time-resolved second harmonic generation (SHG) measurements were performed at room temperature on a single crystal of LuFe2O4, which has recently attracted attention as an electronic ferroelectric material in which polarization…

Materials Science · Physics 2024-05-13 H. Yu , Y. Fukada , G. Nishida , K. Takubo , T. Ishikawa , S. Koshihara , N. Ikeda , Y. Okimoto