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相关论文: Superconductivity below 2.5K in Nb0.25Bi2Se3 topol…

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We study the structural and bulk superconducting properties of self flux grown PdBi2Te3 single crystal. Phase purity of as grown crystal is confirmed by Rietveld refinement of gently crushed powder XRD of the same. PdBi2Te3 crystallizes in…

超导电性 · 物理学 2019-12-23 M. M. Sharma , Lina Sang , Poonam Rani , X. L. Wang , V. P. S. Awana

In this letter, we report growth and characterization of bulk Bi2Se3 single crystals. The studied Bi2Se3 crystals are grown by self flux method through solid state reaction from high temperature (950C) melt of constituent elements and slow…

We investigate the ultrafast transient absorption spectrum of Bi2Se3 topological insulator. Bi2Se3 single crystal is grown through conventional solid-state reaction routevia self-flux method. The structural properties have been studied in…

材料科学 · 物理学 2020-05-20 P. Sharma , D. Sharma , N. Vashistha , P. Rani , M. Kumar , S. S. Islam , V. P. S. Awana

The pressure induced superconductivity and structural evolution for Bi2Se3 single crystal have been studied. The emergence of superconductivity with onset transition temperature (Tc) about 4.4K is observed around 12GPa. Tc increases rapidly…

超导电性 · 物理学 2015-06-15 P. P. Kong , J. L. Zhang , S. J. Zhang , J. Zhu , Q. Q. Liu , R. C. Yu , Z. Fang , C. Q. Jin , W. G. Yang , X. H. Yu , J. L. Zhu , Y. S. Zhao

NbBiCh$_3$ (Ch = S, Se) misfit-layered superconducting single crystals were successfully grown using a CsCl/KCl flux for the first time. The obtained crystals had a well-developed habit parallel to the c-plane with a typical width of 1-2 mm…

We report electrical (angular magneto-resistance, and Hall), thermal (heat capacity) and spectroscopic (Raman, x-ray photo electron, angle resolved photo electron) characterization of bulk Bi2Se3 topological insulator, which is being is…

We report the crystal growth as well as transport properties of Co added Bi2Se3 single crystals. The values of the lattice parameters a and b for Co added sample were observed to increase as compared to the pure Bi2Se3. The Raman…

材料科学 · 物理学 2019-01-01 Rabia Sultana , Ganesh Gurjar , S. Patnaik , V. P. S. Awana

A nematic topological superconductor has an order parameter symmetry, which spontaneously breaks the crystalline symmetry in its superconducting state. This state can be observed, for example, by thermodynamic or upper critical field…

We report on transport properties of the topological insulator single crystal $Sb2Te3$ nanoflakes with thickness about from 7 to 50nm. A steep drop of resistance is appeared near $3K$ in the ultrathin $Sb2Te3$ nanoflakes, manifesting a…

This article reports the synthesis of a single crystalline mixed topological insulator (TI) BiSbTe$_3$ and its detailed structural and magneto-transport properties. The single crystalline samples of BiSbTe$_3$ are grown by the melt-growth…

材料科学 · 物理学 2025-06-02 Dinesh Kumar , Kapil Kumar , N. K. Karn , Ganesh Gurjar , V. P. S. Awana , Sudesh

SrxBi2Se3 is recently reported to be a superconductor derived from topological insulator Bi2Se3. It shows a maximum resistive Tc of 3.25 K at ambient pressure. We report magnetic (upto 1 GPa) and transport properties (upro 8 Gpa) under…

Recently, A2B3 type strong spin orbital coupling compounds such as Bi2Te3, Bi2Se3 and Sb2Te3 were theoretically predicated to be topological insulators and demonstrated through experimental efforts. The counterpart compound Sb2Se3 on the…

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…

超导电性 · 物理学 2016-07-13 Rajveer Jha , Marcos A. Avila , Raquel A. Ribeiro

The Sb2Te3 crystals are grown using the conventional self flux method via solid state reaction route, by melting constituent elements (Sb and Te) at high temperature (850 C), followed by slow cooling (2 C per hour).The weak anti…

材料科学 · 物理学 2018-04-27 Rabia Sultana , Ganesh Gurjar , S. Patnaik , V. P. S. Awana

We report successful growth of flux free large single crystals of superconducting FeSe1/2Te1/2 with typical dimensions of up to few cm. The AC and DC magnetic measurements revealed the superconducting transition temperature (Tc) value of…

超导电性 · 物理学 2015-09-08 Rajveer Jha , P. K. Maheshwari , Bhasker Gahtori , V. P. S. Awana

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.…

We report on the superconducting properties of In doped SnTe which has recently been explored as a topological crystalline superconductor. Single crystals of Sn0.5In0.5Te have been synthesized by modified Bridgman method. Resistivity…

超导电性 · 物理学 2014-06-17 V. K. Maurya , Shruti , P. Srivastava , S. Patnaik

Here, we report the crystal growth, physical and transport properties of Bi1-xSbx (x = 0.05, 0.1 and 0.15) topological insulator. Single crystals of Bi1-xSbx (x = 0.05, 0.1 and 0.15) were grown by melting bismuth and antimony together using…

材料科学 · 物理学 2019-09-09 Rabia Sultana , Ganesh Gurjar , Bhasker Gahtori , Satyabrata Patnaik , V. P. S. Awana

High quality Rb0.8Fe1.6+xSe2 single crystals are grown by a one step melting growth method. Superconductivity has been observed in all samples with x more than 0.05 and the maximum critical temperature Tc~32 K has been obtained in samples…

超导电性 · 物理学 2015-07-22 Zhiwei Wang , Zhen Wang , Yao Cai , Zhen Chen , Chao Ma , Huaixin Yang , Jianqi Li

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
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