441 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- CSIR National Physical Laboratory of IndiaIN125 papers
- Academy of Scientific and Innovative ResearchIN58 papers
- Indian Institute of Science BangaloreIN20 papers
- Indian Institute of Technology KanpurIN18 papers
- Bhabha Atomic Research CentreIN15 papers
- Jamia Millia IslamiaIN15 papers
- University of DelhiIN15 papers
- Indian Institute of Technology BombayIN12 papers
- Jawaharlal Nehru UniversityIN11 papers
- National Chemical LaboratoryIN11 papers
- Jawaharlal Nehru Centre for Advanced Scientific ResearchIN8 papers
- University of St AndrewsGB8 papers
76 papers · 1 filter
Magneto transport and first principle study of strong topological insulator gray Arsenic
N. K. Karn, Kapil Kumar, Geet Awana +3
This article reports the synthesis of a single crystalline gray Arsenic (As) via the Bismuth flux method. The X-ray Diffraction (XRD) pattern revealed the single phase of the grown…
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…
Band topology and non-trivial surface States in type-II Dirac semi-metal (Ni, Pd)Te2
NK Karn, VPS Awana
The semi-metals having electrons near the Fermi level follow the relativistic equation of motion, and show Dirac or Weyl-type behavior. Their orbital resolved electronic bands anal…
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…
2D-Double transition metal MXenes for spintronics applications: surface functionalization induced ferromagnetic half-metallic complexes
Kripa Dristi Dihingia, Swagata Saikia, N. Yedukondalu +2
MXenes are rapidly emerging two-dimensional (2D) materials with thickness, composition, and functionalization-dependent outstanding properties having applications in diverse fields…
Investigation of structural and magneto-transport properties of PdTe2 single crystals
Yogesh Kumar, Prince Sharma, M. M. Sharma +1
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 str…
Surface states induced weak anti-localization effect in Bi0.85Sb0.15 topological single crystal
Yogesh Kumar, VPS Awana
We report, an experimental evidence of surface states (SS) driven magneto-transport in a Bi0.85Sb0.15 single crystal. Detailed high field (up to 12T) and low temperature (down to 2…
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…
Interface study of thermally driven chemical kinetics involved in Ti/Si3N4 based metal-substrate assembly by X-ray photoelectron spectroscopy
Sachin Yadav, Sangeeta Sahoo
Diffusion mediated interaction in metal-substrate assembly during high temperature annealing leads to possible formation of new composite materials. Here, sputtered grown Ti films…
Accessing topological surface states and negative MR in sculpted nanowires of Bi2Te3 at ultra-low temperature
Reena Yadav, Biplab Bhattacharyya, Animesh Pandey +4
Milling of 2D flakes is a simple method to fabricate nanomaterial of any desired shape and size. Inherently milling process can introduce the impurity or disorder which might show…
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…
Raman Spectroscopy of Bi2Se3-xTex (x= 0 to 3) Topological Insulator Crystals
Deepak Sharma, M. M. Sharma, R. S. Meena +1
We report crystal growth and Raman spectroscopy characterization of pure and mixed bulk topological insulators. The series comprises of both binary and ternary tetradymite topologi…
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…
Improved magnetostructural and magnetocaloric reversibility in magnetic Ni-Mn-In shape-memory Heusler alloy by optimizing the geometric compatibility condition
P. Devi, C. Salazar Mejia, M. Ghorbani Zavareh +6
We report an improved reversibility of magnetostriction and inverse magnetocaloric effect (MCE) for the magnetic shape-memory Heusler alloy NiMnIn. We show…
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…
Identification of point defects on Co-Ni co-doping in SnO nanocrystals and their effect on the structural and optical properties
S. Roy, Brijmohan Prajapati, A. Singh +3
SnCoNiO (0 0.04) nanocrystals, with average crystallite size in the range of 7.3 nm (=0.00) to 5.6 nm (=0.04), have been synthes…
Tin Titanate: the hunt for a new ferroelectric perovskite
J. Gardner, Atul Thakre, Ashok Kumar +1
We review all the published literature and show that there is no experimental evidence for homogeneous tin titanate SnTiO3 in bulk or thin-film form. Instead a combination of unrel…
Substrate Mediated Synthesis of Ti-Si-N Nano-and-Micro Structures for Optoelectronic Applications
Sachin Yadav, Alka Sharma, Bikash Gajar +7
Being one of the strongest materials, ternary TiSiN exhibits a very interesting family of binary transition metal nitride and silicide systems. A novel technique to fabricate morph…
Novel synthesis of topological insulator based nanostructures (Bi2Te3) demonstrating high performance photodetection
Alka Sharma, T D Senguttuvan, V N Ojha +1
The rapid progress in 2D material research has triggered the growth of various quantum nanostructures-nanosheets, nanowires, nanoribbons, nanocrystals and the exotic nature origina…
Evidence of Slater-type mechanism as origin of insulating state in Sr2IrO4
Vijeta Singh, J. J. Pulikkotil
For iridates with large spatially extended 5d orbitals, it may be anticipated that distant neighbor interactions would play a crucial role in their ground state properties. From th…