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相关论文: Crystal Growth and Characterization of Bulk Sb2Te3…

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We report the high field (up to 14Tesla) magneto-conductivity analysis of Bi2Se3 topological insulator grown via the self flux method. The detailed experimental investigations including crystal growth as well as the electrical, thermal and…

材料科学 · 物理学 2018-07-16 Rabia Sultana , Ganesh Gurjar , S. Patnaik , V. P. S. Awana

We report the magneto-conductivity analysis at different temperatures under magnetic field of up to 5Tesla of a well characterized Bi2Te3 crystal. Details of crystal growth and various physical properties including high linear magneto…

材料科学 · 物理学 2018-05-31 Rabia Sultana , Ganesh Gurjar , P. Neha , S. Patnaik , V. P. S. Awana

Ni$_3$In$_2$S$_2$ is the most recent entrant into the family of topological insulator (TI) materials, the same exhibits very high MR in a low-temperature regime. Here, we report the crystal growth, the structural, micro-structural, and…

介观与纳米尺度物理 · 物理学 2023-12-06 Kapil Kumar , Yogesh Kumar , 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…

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

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 crystal growth and below 2.5K superconductivity of Nb0.25Bi2Se3. These crystals are grown by self flux method. The X-ray diffraction (XRD) pattern of as grown crystal flake shows (00l) plane (c-orientation) growth. The Rietveld…

超导电性 · 物理学 2019-11-20 M. M. Sharma , P. Rani , Lina Sang , X. L. Wang , V. P. S. Awana

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

We report the magneto-conductivity analysis of Bi2Se3 single crystal at different temperatures in a magnetic field range of 14Tesla. The single crystals are grown by the self-flux method and characterized through X-ray diffraction, Scanning…

材料科学 · 物理学 2021-02-19 Yogesh Kumar , Rabia Sultana , Prince Sharma , V. P. S. Awana

We report the detailed study of structural micro-structuraland high magnetic field magneto transport propertiesof Bi2Se3single crystal. Bi2Se3 single crystal is grown through conventional solid-state reaction route via the self-flux method.…

We report the angle dependent high field (up to 140kOe) magneto transport of Bi2Te3 single crystals, a well-known topological insulator. The crystals were grown from melt of constituent elements via solid state reaction route by self-flux…

材料科学 · 物理学 2018-03-14 Rabia Sultana , P. K. Maheshwari , Brajesh Tiwari , V. P. S. Awana

The article comprises structural, microstructural, and physical properties analysis of Bi2Se3-xTex (x= 0, 1, 2 and 3) mixed topological insulator (MTI) single crystals. All the crystals were grown through a well-optimized solid-state…

材料科学 · 物理学 2020-12-02 Deepak Sharma , Yogesh Kumar , P. Kumar , Vipin Nagpal , S. Patnaik , V. P. S. Awana

Despite numerous studies on three-dimensional topological insulators (3D TIs), the controlled growth of high quality (bulk-insulating and high mobility) TIs remains a challenging subject. This study investigates the role of growth methods…

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

SnTe, an archetypical topological crystalline insulator, often shows a transition from a highly symmetric cubic phase to a rhombohedral structure at low temperatures. In order to achieve the highly symmetric cubic phase at low temperatures…

材料科学 · 物理学 2022-04-06 Ayanesh Maiti , Ankita Singh , Kartik K. Iyer , Arumugam Thamizhavel

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

We report the exotic photoluminescence (PL) behaviour of 3D topological insulator Bi2Te3 single crystals grown by customized self-flux method and mechanically exfoliated few layers (18 plus minus 2 nm)/thin flakes obtained by standard…

Topological insulators with their topological protected surface states are highly promising quantum materials. In this article the micro-flakes of single-crystalline topological insulators Bi2Te3 and Sb2Te3 are explored through physical…

材料科学 · 物理学 2021-06-23 Prince Sharma , Yogesh Kumar , V. P. S. Awana , Mahesh Kumar

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…

材料科学 · 物理学 2022-09-28 Yogesh Kumar , Prince Sharma , M. M. Sharma , V. P. S. Awana

Topological insulators are known to their metallic surface states, a result of strong-spin-orbital coupling, that show unique surface transport phenomenon. But these surface transports are buried in presence of metallic bulk conduction. We…

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