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Highly-perfect platelet single crystals of Tl_2Ba_2CuO_{6+d} (Tl-2201) were grown by a self-flux technique. A novel encapsulation scheme allowed the precursors to react prior to the sealing required to contain volatile thallium oxides, and…

Superconductivity · Physics 2009-12-16 D. C. Peets , Ruixing Liang , Mati Raudsepp , W. N. Hardy , D. A. Bonn

Systematic microwave surface impedance measurements of YBCO single crystals grown in $BaZrO_3$ crucibles reveal new properties that are not directly seen in similar measurements of other YBCO samples. Two key observations obtained from…

Superconductivity · Physics 2009-10-30 H. Srikanth , Z. Zhai , S. Sridhar , A. Erb , E. Walker

Superconducting Sm(O,F)BiS2 single crystals were successfully grown using KI-KCl flux. The obtained single crystals were flat-shaped and their size was 500um. The structure and composition of the obtained single crystals were obtained using…

Single crystals FeSe_x have been grown in evacuated sealed quartz tube using a NaCl/KCl flux. The products include two crystal structures of tetragon and hexagon. The electronic transport and magnetic properties measurements of FeSe_x…

Superconductivity · Physics 2009-11-13 S. B. Zhang , Y. P. Sun , X. D. Zhu , X. B. Zhu , B. S. Wang , G. Li , H. C. Lei , X. Luo , Z. R. Yang , W. H. Song , J. M. Dai

(La,Ce)OBiS2 single crystals are successfully grown using CsCl flux. The obtained single crystals have a plate-like shape with a size of 0.5-2.0 mm and a well-developed ab-plane. The thickness of the crystals increases with a decrease in…

Single crystals of ${\rm Bi}_{2+x}{\rm Sr}_{2-x}{\rm Ca}_{2}{\rm Cu}_{3}{\rm O}_{10+\delta}$(Bi2223) with $x=0.2$ were grown by a traveling solvent floating zone method in order to investigate the superconducting properties of highly…

Superconductivity · Physics 2010-10-26 Tetsuya Iye , Takenori Nagatochi , Ryusuke Ikeda , Azusa Matsuda

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…

A new approach to grow FeSe1-xTex single crystals with optical zone-melting technique was successfully employed. Crystals with actual composition 0.4 < x < 1.0 all show high crystallinity with no phase separation. The ability to visually…

Superconductivity · Physics 2009-11-16 K. W. Yeh , C. T. Ke , T. W. Huang , T. K. Chen , Y. L. Huang , P. M. Wu , M. K. Wu

Bi$_2$Sr$_{2-x}$La$_x$CuO$_{6+\delta}$ (0$\leq x \leq$1.00) single crystals with high-quality have been grown successfully using the travelling-solvent floating-zone technique. The patterns of X-ray diffraction suggest high crystalline…

Superconductivity · Physics 2009-11-13 Huiqian Luo , Peng Cheng , Lei Fang , Hai-Hu Wen

Superconductivity was discovered in a Ni0:05TaS2 single crystal. A Ni0:05TaS2 single crystal was successfully grown via the NaCl/KCl flux method. The obtained lattice constant c of Ni0:05TaS2 is 1.1999 nm, which is significantly smaller…

Superconductivity · Physics 2015-05-13 X. D. Zhu , Y. P. Sun , S. B. Zhang , H. C. Lei , X. B. Zhu , Lijun Li , Z. R. Yang , W. H. Song , J. M. Dai

Millimeter sized single crystals of KCa_2Fe_4As_4F_2 were grown using a self-flux method. The chemical compositions and crystal structure were characterized carefully. Superconductivity with the critical transition T_c = 33.5 K was…

We report the growth and physical properties of single-crystalline Bi$_2$Ta$_3$S$_6$ crystallizing in $P6_3/mcm$ space group, which comprises alternating Ta-S layers and Bi layers with each Bi atom connected with adjacent S atoms.…

Superconducting single crystals of SmFeAsO$_{1-x}$ without fluorine doping were grown at a pressure of 3.3 GPa and a temperature of 1350-1450 $^\circ$C by using the self-flux method. Plate-like single crystals of a few-150 $\mu$m in their…

We report on the crystal growth and characterization of ABi3 (A=Ba,Sr) superconductors. Single crystals of both compounds were grown by the self-flux technique. BaBi3 crystallized in a tetragonal structure with space group P4/mmm and SrBi3…

Superconductivity · Physics 2016-07-13 Rajveer Jha , Marcos A. Avila , Raquel A. Ribeiro

We use Ar-ion milling to thin Bi2212 single crystals down to a few nanometers or one-to-two (CuO2)2 layers. With decreasing the thickness, superconducting transition temperature gradually decreases to zero and the in-plane resistivity…

Superconductivity · Physics 2009-11-11 L. X. You , A. Yurgens , D. Winkler

The superconducting gap Delta has been measured in Bi2Sr2-xLaxCuO6+d single crystals in a wide range of temperatures 4.2 K < T < Tc by point-contact and tunnelling spectroscopy for current in c-direction. The value of Delta(4.2 K) was found…

Single crystals of thallium-based cuprates with the general formula Tl$_{2}$Ba$_{2}$Ca$_{n-1}$Cu$_{n}$O$_{x}$(n=1,2,3) have been grown by the flux method. The superconducting transition temperatures determined by the ac magnetic…

Superconductivity · Physics 2009-11-11 Y. C. Ma , N. L. Wang

Superconductivity in thin films and powders, and in single crystals of Pr-123 has been found by Blackstead et al. and Zou et al., respectively. Nevertheless, up to now it has never been reported in sintered-policrystalline samples. We have…

Superconductivity · Physics 2007-05-23 F. M. Araujo-Moreira , P. N. Lisboa Filho , S. M. Zanetti , E. R. Leite , W. A. Ortiz

Centimeter sized platelet single crystals of KFe2As2 were grown using a self-flux method. An encapsulation technique using commercial stainless steel container allowed the stable crystal growth lasting for more than 2 weeks. Ternary K-Fe-As…

We report the structural, superconducting, magnetic and granular properties of Y1-xCaxBa2Cu3O7; x = 0.0, 0.1, 0.2 and 0.3. Rietveld fitted X-ray diffraction data confirms the single phase formation for all the samples. The orthorhombicity…

Superconductivity · Physics 2012-01-24 N. P. Liyanawaduge , Anuj Kumar , Shiva Kumar , B. S. B. Karunarathne , V. P. S. Awana