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We report anisotropic dc magnetic susceptibility $\chi(T)$, electrical resistivity $\rho(T)$, and heat capacity $C(T)$ measurements on the single crystals of CaFe$_{2-x}$Co$_x$As$_2$ for $x$ = 0 and 0.06. Large sized single crystals were…

Superconductivity · Physics 2009-11-13 Neeraj Kumar , R. Nagalakshmi , R. Kulkarni , P. L. Paulose , A. K. Nigam , S. K. Dhar , A. Thamizhavel

Method of derivation of phenomenological thermodynamic potential of solid solutions is proposed in which the interaction of the order parameters of constituents is introduced through the account of elastic strain due to misfit of the…

Materials Science · Physics 2007-05-23 V. B. Shirokov , V. I. Torgashev , A. A. Bakirov , V. V. Lemanov

In this article mixed CuInP$_2$(S$_x$Se$_{1-x}$)$_6$ crystals were investigated by broadband dielectric spectroscopy (20 Hz - 3 GHz). The complete phase diagram has been obtained from these results. The phase diagram of investigated…

Materials Science · Physics 2015-05-13 J. Macutkevic , J. Banys , R. Grigalaitis , Yu. Vysochanskii

We report the phase diagram of (Ba1-xCax)(Zr0.1Ti0.9)O3 solid solution. It is found that substitution of smaller Ca ions for Ba ions can slightly increase the cubic-tetragonal(T) para-ferroelectric phase transition temperature and strongly…

Materials Science · Physics 2013-10-08 Desheng Fu , Yuto Kamai , Naonori Sakamoto , Naoki Wakiya , Hisao Suzuki , Mitsuru Itoh

Solid solutions, structurally ordered but compositionally disordered mixtures, can form for salts, metals, and even organic compounds. The NaCl-KCl system forms a solid solution at all compositions between 657{\deg}C and 505{\deg}C. Below a…

Statistical Mechanics · Physics 2020-04-16 Jamshed Anwar , Christian Leitold , Baron Peters

We have investigated the electronic properties of SrFe$_2$(As$_{1-x}$P$_x$)$_2$ ($0\leqq x\leqq1$) single crystals with postannealing treatment and established a phase diagram of this system. The postannealing treatment reduced the residual…

Superconductivity · Physics 2015-06-22 Tatsuya Kobayashi , Shigeki Miyasaka , Setsuko Tajima , Noriko Chikumoto

We report on the specific heat determination of the anisotropic phase diagram of single crystals of optimally doped SmFeAsO1-xFx. In zero-field, the optimally doped compound displays a clear cusp-like anomaly in C/T with {\Delta}C/Tc = 24…

Superconductivity · Physics 2011-04-05 U. Welp , C. Chaparro , A. E. Koshelev , W. K. Kwok , A. Rydh , N. D. Zhigadlo , J. Karpinski , S. Weyeneth

High-resolution thermal-expansion and specific-heat measurements were performed on single crystalline BaFe2(As1-xPx)2 (0 < x < 0.33, x = 1). The observation of clear anomalies allows to establish the thermodynamic phase diagram which…

We present thermodynamic, structural and transport measurements on Ba(Fe0.973Cr0.027)2As2 single crystals. All measurements reveal sharp anomalies at ~ 112 K. Single crystal x-ray diffraction identifies the structural transition as a first…

Materials Science · Physics 2009-07-28 S. L. Bud'ko , S. Nandi , N. Ni , A. Thaler , A. Kreyssig , A. Kracher , J. -Q. Yan , A. I. Goldman , P. C. Canfield

F-substituted NdOBiS2 superconducting single crystals were grown using CsCl/KCl flux. This is the first example of the single-crystal growth of a BiS2-based superconductor. The obtained single crystals had a plate-like shape with a size of…

This paper presents computer simulations of Cu$_x$Zr$_{100-x}$ $(x=36,50,64)$ in the liquid and glass phases. The simulations are based on the effective-medium theory (EMT) potentials. We find good invariance of both structure and dynamics…

Materials Science · Physics 2021-04-21 Laura Friedeheim , Nicholas P. Bailey , Jeppe C. Dyre

In this paper we present the single crystal growth of Fe0.95Se0.6Te0.4 high TC superconducting sample by the modified Bridgman technique. The x-ray diffraction pattern shows the single crystal nature of the sample, as only (00l) peaks are…

Superconductivity · Physics 2019-07-23 Anmol Shukla , Vishal K. Maurya , Rajendra S. Dhaka

The phase diagram of $\alpha$-cyclodextrin/water/4-methylpyridine solutions, a system undergoing inverse melting, has been studied by differential scanning calorimetry, rheological methods, and X-rays diffraction. Two different fluid phases…

Soft Condensed Matter · Physics 2009-11-13 R. Angelini , G. Ruocco , S. De Panfilis , F. Sette

Large single crystals of La-doped CaFe2As2 were successfully synthesized by the FeAs self-flux method. The x-ray diffraction patterns suggest high crystalline quality and c-axis orientation. By substitution of trivalent La3+ ions for…

Superconductivity · Physics 2015-05-28 Zhaoshun Gao , Yanpeng Qi , Lei Wang , Dongliang Wang , Xianping Zhang , Chao Yao , Chunlei Wang , Yanwei Ma

We present a phase-field crystal (PFC) model for solidification that accounts for thermal transport and a temperature-dependent lattice parameter. Elasticity effects are characterized through the continuous elastic field computed from the…

Materials Science · Physics 2023-01-26 Maik Punke , Steven M. Wise , Axel Voigt , Marco Salvalaglio

Single crystals of Ba(Fe$_{1-x}$Ru$_x$)$_2$As$_2$, $x<0.37$, have been grown and characterized by structural, magnetic and transport measurements. These measurements show that the structural/magnetic phase transition found in pure…

Superconductivity · Physics 2015-05-19 A. Thaler , N. Ni , A. Kracher , J. Q. Yan , S. L. Bud'ko , P. C. Canfield

High-temperature indium flux growth was applied to prepare single crystals of GdRh$_2$Si$_2$ by a modified Bridgman method leading to mm-sized single crystals with a platelet habitus. Specific heat and susceptibility data of GdRh$_2$Si$_2$…

Strongly Correlated Electrons · Physics 2016-12-05 Kristin Kliemt , Cornelius Krellner

Systematic measurements of the resistivity, heat capacity, susceptibility and Hall coefficient are presented for single crystal samples of the electron-doped superconductor Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$. These data delineate an $x-T$ phase…

Superconductivity · Physics 2009-05-02 Jiun-Haw Chu , James G. Analytis , Chris Kucharczyk , Ian R. Fisher

We report the successful growth of high quality single crystals of LiFeAs with lateral sizes up to 5 x 5 mm2 by the Sn-flux method. Electrical resistivity studies reveal that the superconducting onset temperature is 18.2 K with a transition…

Superconductivity · Physics 2010-10-20 Bumsung Lee , Seunghyun Khim , Jung Soo Kim , G. R. Stewart , Kee Hoon Kim

We present the structural, magnetic, thermal and ab-plane electronic transport properties of single crystals of CaCu1.7As2 grown by the self-flux technique that were investigated by powder x-ray diffraction, magnetic susceptibility chi,…

Superconductivity · Physics 2013-08-20 V. K. Anand , D. C. Johnston