71 citations · 267 across the 16 of their papers we have counts for
16 papers
Superconductivity coexisting with ferromagnetism in a quasi-one dimensional non-centrosymmetric (TaSe)I
Arnab Bera, Sirshendu Gayen, Suchanda Mondal +13
Low-dimensional materials with broken inversion symmetry and strong spin-orbit coupling can give rise to fascinating quantum phases and phase transitions. Here we report coexistenc…
Suppression of transport spin-polarization of surface states with emergence of ferromagnetism in Mn-doped Bi2Se3
Suman Kamboj, Shekhar Das, Anshu Sirohi +5
The surface states of topological insulators (TI) are protected by time reversal symmetry and they display intrinsic spin helicity where the momentum of the charge carriers decides…
Mixed type I and type II superconductivity due to intrinsic electronic inhomogeneities in the type II Dirac semimetal PdTe2
Anshu Sirohi, Shekhar Das, Rajeswari Roy Chowdhuri +4
The type II Dirac semimetal PdTe is unique in the family of topological parent materials because it displays a superconducting ground state below 1.7 K. Despite wide speculatio…
Tip-induced Superconductivity Coexisting with Preserved Topological Properties in Line-nodal Semimetal ZrSiS
Leena Aggarwal, Chandan K. Singh, Mohammad Aslam +6
ZrSiS was recently shown to be a new material with topologically non-trivial band structure which exhibits multiple Dirac nodes and a robust linear band dispersion up to an unusual…
Conventional Superconductivity in Type II Dirac Semimetal PdTe
Shekhar Das, Amit, Anshu Sirohi +4
The transition metal dichalcogenide PdTe was recently shown to be a unique system where a type II Dirac semimetallic phase and a superconducting phase co-exist. This observatio…
Discovery of highly spin-polarized conducting surface states in the strong spin-orbit coupling semiconductor SbSe
Shekhar Das, Suman Kamboj, Anshu Sirohi +4
Majority of the AB type chalcogenide systems with strong spin-orbit coupling, like BiSe, BiTe and SbTe etc., are topological insulators. One importa…
Possible multigap Type-I superconductivity in the layered Boride RuB
Jaskaran Singh, Anooja Jayaraj, D. Srivastava +3
The structure of the layered transition-metal Borides B ( Os, Ru) is built up by alternating and B layers with the B layers forming a puckered honeycomb. Here we re…
Giant Enhancement of Superconductivity in Zr Point Contacts
Mohammad Aslam, Chandan K. Singh, Shekhar Das +6
For certain complex superconducting systems, the superconducting properties get enhanced under mesoscopic point contacts made of elemental non-superconducting metals. However, unde…
Enhanced zero-bias conductance peak and splitting at mesoscopic interfaces between an -wave superconductor and a 3D Dirac semimetal
Leena Aggarwal, Sirshendu Gayen, Shekhar Das +3
Mesoscopic point contacts between elemental metals and the topological 3D Dirac semimetal CdAs have been recently shown to be superconducting with unconventional pairing wh…
Comment on "Tip induced unconventional superconductivity on Weyl semimetal TaAs" [arXiv:1607.00513]
Sirshendu Gayen, Leena Aggarwal, Goutam Sheet
Recently, Wang have reported the observation of "unconventional superconductivity" in the Weyl semimetal TaAs [arXiv:1607.00513]. The authors have written "\textit{A con…
Mesoscopic superconductivity and high spin polarization coexisting at metallic point contacts on the Weyl semimetal TaAs
Leena Aggarwal, Sirshendu Gayen, Shekhar Das +5
A Weyl semimetal is a topologically non-trivial phase of matter that hosts mass-less Weyl fermions, the particles that remained elusive for more than 80 years since their theoretic…
Unexpected superconductivity at nanoscale junctions made on the topological crystalline insulator PbSnTe
Shekhar Das, Leena Aggarwal, Subhajit Roychowdhury +4
Discovery of exotic phases of matter from the topologically non-trivial systems not only makes the research on topological materials more interesting but also enriches our understa…
Anisotropic superconductivity in La(O,F)BiSeS crystals revealed by field-angle dependent Andreev reflection spectroscopy
Mohammad Aslam, Sirshendu Gayen, Avtar Singh +4
From field-angle dependent Andreev reflection spectroscopy on single crystals of La(O,F)BiSeS, which belongs to the recently discovered BiCh 2 (Ch = S, Se) based layered supercondu…
Evidence of a pseudogap driven by competing orders of multi-band origin in the ferromagnetic superconductor SrCeFBiS
Mohammad Aslam, Arpita Paul, Gohil S. Thakur +7
From temperature and magnetic field dependent point-contact spectroscopy on the ferromagnetic superconductor SrCeFBiS (bulk superconducting = 2.5 K) we ob…
High spin polarization and the origin of unique ferromagnetic ground state in CuFeSb
Anshu Sirohi, Chandan K. Singh, Gohil S. Thakur +9
CuFeSb is isostructural to the ferro-pnictide and chalcogenide superconductors and it is one of the few materials in the family that are known to stabilize in a ferromagnetic groun…
A versatile simulator for specular reflectivity study of multi-layer thin films
Sirshendu Gayen
A versatile X-ray/neutron reflectivity (specular) simulator using LabVIEW(National Instruments Corp.) for structural study of a multi-layer thin film having any combination, includ…