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Electromagnetic properties of copper doped lead apatite Pb9Cu(PO4)6O
M. Singh, P. Saha, K. Kumar +4
We report on the structural, electrical and magnetic measurements in as-grown polycrystalline samples of Pb10-xCux(PO4)6O. This compound has been recently reported to be a room tem…
Growth and characterization of the magnetic topological insulator candidate MnSbTe
Ankush Saxena, V. P. S. Awana
We report a new member of topological insulator (TI) family i.e., MnSbTe, which belongs to MnSbTe family and is a sister compound of MnBiTe. An anti…
Drastic suppression of CDW (charge density wave) by Pd addition in TiSe2
Abhilasha Saini, N. K. Karn, Kapil Kumar +2
TiSe2 is a known Topological semimetal (TSM) having both the semi-metallic and topological characters simultaneously and the Charge density wave (CDW) at below 200K. In the current…
Shubnikov de Haas (SdH) Oscillation in Self-Flux Grown Rhombohedral Single Crystalline Bismuth
Yogesh Kumar, Prince Sharma, N. K. Karn +1
The historic de Haas van Alphen effect observed in the late 1950s in CSIR-NPL by J.S. Dhillon and D. Shoenberg in pure bismuth and zinc metal is revisited in this article hrough a…
Growth, structure, micro-structure and magneto transport of an easy route synthesized bulk polycrystalline TiSe2
Abhilasha Saini, Kapil Kumar, M. M. Sharma +2
This article reports an easy route synthesis of bulk polycrystalline TiSe2. Phase purity and microstructure are determined through powder X-ray diffraction (PXRD) and field emissio…
Structural and WAL analysis of Topological single-crystal SnSb2Te4
Ankush Saxena, M. M. Sharma, Prince Sharma +5
Here, we report successful single crystal growth of SnSb2Te4 using the self-flux method. Unidirectional crystal growth is confirmed through X Ray Diffraction (XRD) pattern taken on…
Probing the Topological Surface States through Magnetoresistance and Ultrafast Charge Carrier Dynamics in (Bi/Sb)2Te3
Prince Sharma, Yogesh Kumar, V. P. S. Awana +1
Topological insulators with their topological protected surface states are highly promising quantum materials. In this article the micro-flakes of single-crystalline topological in…
Modeling of Magneto-Conductivity of Bismuth Selenide -- A Topological Insulator
Yogesh Kumar, Rabia Sultana, Prince Sharma +1
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…
Comprehensive Analysis for the High Field Magneto-conductivity of Bi2Te3 Single Crystal
Yogesh Kumar, Rabia Sultana, V. P. S. Awana
Here, we report the magneto-conductivity (up to 14Tesla and down to 5K) analysis of Bi2Te3 single-crystal. A sharp magneto-conductivity (MC) rise (inverted v-type cusp) is observed…
Excited-state dynamics of structurally characterized crystal of SnxSb1-x
Prince Sharma, M. M. Sharma, Kapil Kumar +2
The topological behavior of heavy metal alloys opens a vast area for incredible research and future technology. Here, we extend our previous report about the superconducting proper…
High Field Magneto-Transport of Mixed Topological Insulators Bi2Se3-xTex (x = 0, 1, 2 & 3)
Deepak Sharma, Yogesh Kumar, P. Kumar +3
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 cry…
Metal Doping in Topological Insulators- A Key for Tunable Generation of Terahertz
Prince Sharma1, M. M Sharma, Mahesh Kumar +1
The unique surface edge states make topological insulators a primary focus among different applications. In this article, we synthesized a large single crystal of Niobium(Nb)-doped…
Crystal Growth and characterization of possible New Magnetic Topological Insulators FeBi2Te4
Ankush Saxena, Poonam Rani, S. Patnaik +3
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 Rie…
Exploration of terahertz from time-resolved ultrafast spectroscopy in single-crystal Bi2Se3 topological insulator
Prince Sharma, Mahesh Kumar, V. P. S. Awana
In this article, we reconnoiter the differential reflection signal of a Bi2Se3 single crystal flake, using ultrafast transient absorption spectroscopy in the femtosecond time domai…
Ultrafast Spectroscopy of Bi2Se3 Topological Insulator
P. Sharma, D. Sharma, N. Vashistha +4
We investigate the ultrafast transient absorption spectrum of Bi2Se3 topological insulator. Bi2Se3 single crystal is grown through conventional solid-state reaction routevia self-f…
Hikami-Larkin-Nagaoka (HLN) Fitting of Magneto Transport of Bi2Se3 Single Crystal in Different Magnetic Field Ranges
Deepak Sharma, P. Rani, P. K. Maheshwari +5
We report the detailed study of structural micro-structuraland high magnetic field magneto transport propertiesof Bi2Se3single crystal. Bi2Se3 single crystal is grown through conve…
Structural, Surface Morphology and Magneto-Transport properties of Self Flux Grown Eu Doped Bi2Se3 Single Crystal
Rabia Sultana, Ganesh Gurjar, Bhasker Gahtori +2
Here, we report the effect of europium (Eu) doping in Bi2Se3 topological insulator (TI) by using different characterization techniques viz. X-ray diffraction (XRD), scanning electr…
Flux Free Single Crystal Growth and Detailed Physical Property Characterization of Bi1-xSbx (x = 0.05, 0.1 and 0.15) Topological Insulator
Rabia Sultana, Ganesh Gurjar, Bhasker Gahtori +2
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 0.1…
Crystal Growth and basic transport and magnetic properties of MnBi2Te4
Poonam Rani, Ankush Saxena, Rabia Sultana +4
We report successful growth of magnetic topological insulator (MTI) MnBi2Te4. The heating schedule basically deals with growth of the crystal from melt at 900C and very slow coolin…
Growth, Characterization and High Field Magneto-Conductivity of Co0.1Bi2Se3 Topological Insulator
Rabia Sultana, Ganesh Gurjar, S. Patnaik +1
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 i…
High Field Magneto-Conductivity Analysis of Bi2Se3 Single Crystal
Rabia Sultana, Ganesh Gurjar, S. Patnaik +1
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 incl…
Hikami-Larkin-Nagaoka (HLN) treatment of the Magneto Conductivity of Bi2Te3 Topological Insulator
Rabia Sultana, Ganesh Gurjar, P. Neha +2
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 var…
Observation of quantum oscillations in FIB fabricated nanowires of topological insulator (Bi2Se3)
Biplab Bhattacharyya, Alka Sharma, V P S Awana +3
Since last few years, research based on topological insulators (TI) is in great interests due to intrinsic exotic fundamental properties and future potential applications such as q…
FIB synthesis of Bi2Se3 1D nanowires demonstrating the co-existence of Shubnikov-de Haas oscillations and linear magnetoresistance
Biplab Bhattacharyya, Alka Sharma, V P S Awana +2
Since the discovery of topological insulators (TI), there are considerable interests in demonstrating metallic surface states, their shielded robust nature to the backscattering an…