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Materials exhibiting bulk superconductivity along with magnetoresistance (MR) in their normal state have emerged as suitable candidates for topological superconductivity. In this article, we report a flux free method to synthesize single…

Superconductivity · Physics 2022-08-17 M. M. Sharma , Poonam Rani , V. P. S. Awana

Topological semimetals with superconducting properties provide an emergent platform to explore the properties of topological superconductors. We report magnetization, and magneto-transport measurements on high quality single crystals of…

Superconductivity · Physics 2022-06-29 M. Singh , P. Saha , V. Nagpal , S. Patnaik

We report synthesis and properties of superconducting Bi$_2$PdPt, a new member of Bi-Pd based compounds known for their simultaneous existence of topological surfaces states and superconductivity. It crystallizes in a hexagonal structure…

Superconductivity · Physics 2022-08-17 A. Kataria , T. Agarwal , S. Sharma , D. Singh , S. Marik , R. P. Singh

In this article, we report the occurrence of superconductivity in Sn0.4Sb0.6 single crystal at below 4K. Rietveld refined Powder XRD data confirms the phase purity of as grown crystal, crystallizing in rhombohedral R-3m space group with an…

Superconductivity · Physics 2020-06-23 M. M. Sharma , Kapil Kumar , Lina Sang , X. L. Wang , V. P. S. Awana

We report the magnetization, electrical resistivity, specific heat measurements and band structure calculations of layered superconductor SnTaS$_2$. The experiments are performed on single crystals grown by chemical vapor transport method.…

We report a detailed study of superconductivity in polycrystalline SnTaS$_2$ using electrical transport, magnetization and heat capacity measurements. SnTaS$_2$ crystallizes in centrosymmetric hexagonal structure with space group…

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…

Superconductivity · Physics 2014-06-17 V. K. Maurya , Shruti , P. Srivastava , S. Patnaik

The growth and structural analysis of topological semimetal (TSM) PdTe2 were carried out in this study. The self-flux method was employed to grow the single crystals which were structurally characterized by XRD, SEM and EDAX, while the…

Materials Science · Physics 2022-09-28 Yogesh Kumar , Prince Sharma , M. M. Sharma , V. P. S. Awana

Here we report, the successful synthesis of single crystals of topological semimetal (TSM) candidate, PdSn$_4$ using the self-grown route. The synthesized crystal is well characterized through X-ray diffraction (XRD), field emission…

Materials Science · Physics 2023-05-17 N. K. Karn , M. M. Sharma , V. P. S. Awana

Here we report the anisotropic magnetotransport properties in the superconducting state of Sn$_4$Au single crystal. Sn$_4$Au single crystal is synthesized through an easy melt growth method. Superconducting properties are evidenced by…

Superconductivity · Physics 2023-05-03 M. M. Sharma , Ganesh Gurjar , S. Patnaik , V. P. S. Awana

Topological superconductors (TSCs) are unconventional superconductors with bulk superconducting gap and in-gap Majorana states on the boundary that may be used as topological qubits for quantum computation. Despite their importance in both…

A perfect topological superconductor can be realized by the simultaneous existence of bulk superconductivity along with topological non-trivial surface states. In this article, we report single crystal growth of superconducting binary…

Superconductivity · Physics 2022-06-29 M. M. Sharma , N. K. Karn , Poonam Rani , R. N. Bhowmik , V. P. S. Awana

Low-field magnetotransport measurements of topological insulators such as Bi$_2$Se$_3$ are important for revealing the nature of topological surface states by quantum corrections to the conductivity, such as weak-antilocalization. Recently,…

We report appearance of superconductivity at 5K in NdO0.5F0.5BiS2 and supplement the discovery [1] of the same in layered sulfide based ZrCuSiAs type compounds. The bulk polycrystalline compound is synthesized by conventional solid state…

Superconductivity · Physics 2015-06-11 Rajveer Jha , Anuj Kumar , Shiva Kumar Singh , V. P. S. Awana

Two-dimensional (2D) transition-metal dichalcogenide (TMDs) MoTe2 has attracted much attention due to its predicted Weyl semimetal (WSM) state and a quantum spin Hall insulator in bulk and monolayer form, respectively. We find that the…

Here we report successful synthesis of single crystalline magnetic Weyl semimetal Co3Sn2S2. The synthesized crystal is characterized through various tools viz. X-ray diffraction, field emission electron microscopy and X-ray photoelectron…

Materials Science · Physics 2022-11-28 Kapil Kuma , M. M. Sharma , V. P. S. Awana

In the present report, we investigate various properties of the Nb2PdS5 superconductor. Scanning electron microscopy displayed slabs like laminar growth of Nb2PdS5while X-ray photoelectron spectroscopy exhibited the hybridization of Sulphur…

Superconductivity · Physics 2018-03-14 Reena Goyal , A. K. Srivastava , Monu Mishra , Govind Gupta , Rajveer Jha , V. P. S. Awana

We report transport properties of single-crystalline Pd$_{3}$Bi$_{2}$S$_{2}$, which has been predicted to host an unconventional electronic phase of matter beyond three-dimensional Dirac and Weyl semimetals. Similar to several topological…

Materials Science · Physics 2018-04-27 Shubhankar Roy , Arnab Pariari , Ratnadwip Singha , Biswarup Satpati , Prabhat Mandal

We report herein the successful synthesis of the topological material SnBi2Te4 in single-crystal form. Phase purity and unidirectional growth are evident from X-ray diffraction (XRD) patterns acquired from a powdered sample and a crystal…

Materials Science · Physics 2022-12-14 Ankush Saxena , N. K. Karn , M. M. Sharma , V. P. S. Awana

Superconducting layered transition metal dichalcogenides (TMDs) stand out among other superconductors due to the tunable nature of the superconducting transition, coexistence with other collective electronic excitations (charge density…

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