Mesoscopic superconductivity and high spin polarization coexisting at metallic point contacts on Weyl semimetal TaAs

L Aggarwal, S Gayen, S Das, R Kumar, V Süß… - Nature …, 2017 - nature.com
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 theoretical …

High transport spin polarization in the van der Waals ferromagnet

D Rana, M Bhakar, S Bera, N Saini, SK Pradhan… - Physical Review B, 2023 - APS
The challenging task of scaling down the size of the power saving electronic devices can be
accomplished by exploiting the spin degree of freedom of the conduction electrons in van …

Tip-induced superconductivity

S Howlader, G Sheet - Journal of Physics: Condensed Matter, 2021 - iopscience.iop.org
It is widely believed that topological superconductivity, a hitherto elusive phase of quantum
matter, can be achieved by inducing superconductivity in topological materials. In search of …

Spin-polarized supercurrent through the van der Waals Kondo-lattice ferromagnet

D Rana, C Patra, S Howlader, RR Chowdhury, M Kabir… - Physical Review B, 2022 - APS
In the new van der Waals Kondo-lattice Fe 3 GeTe 2, itinerant ferromagnetism and heavy
fermionic behavior coexist. Both the key properties of such a system, namely, a spin …

Spin-orbit driven spin depolarization in the ferromagnetic Weyl semimetal Co3Sn2S2

S Howlader, S Saha, R Kumar, V Nagpal… - arXiv preprint arXiv …, 2019 - arxiv.org
Co $ _3 $ Sn $ _2 $ S $ _2 $ has recently emerged as a ferromagnetic Weyl semi-metal.
Theoretical investigation of the spin-split bands predicted half metalicity in the compound …

Suppression of transport spin-polarization of surface states with emergence of ferromagnetism in Mn-doped Bi2Se3

S Kamboj, S Das, A Sirohi… - Journal of Physics …, 2018 - iopscience.iop.org
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 their …

Strong spin depolarization in the ferromagnetic Weyl semimetal : Role of spin-orbit coupling

S Howlader, S Saha, R Kumar, V Nagpal, S Patnaik… - Physical Review B, 2020 - APS
Co 3 Sn 2 S 2 has recently emerged as a ferromagnetic Weyl semimetal. Theoretical
investigation of the spin-split bands predicted half metallicity in the compound. Here, we …

Mesoscopic superconductivity above 10 K in silicon point contacts

A Sirohi, S Gayen, M Aslam, G Sheet - Applied Physics Letters, 2018 - pubs.aip.org
Silicon, perhaps the most ubiquitously used material in the digital age of today, has also
been a material of choice for testing the fundamental differences between various electronic …

Breakdown of Hund's rule for CuFeAs

ZY Song, XC Jiang, XF Ouyang, YZ Zhang - Physical Review B, 2021 - APS
The ground-state properties of CuFeAs were investigated by applying density functional
theory calculations within the generalized gradient approximation (GGA) and GGA+ U. We …

Transport spectroscopy on novel quantum materials

S Kamboj - 2021 - 210.212.36.82
Emergence of novel quantum materials like ferromagnets, superconductors, topological non-
trivial materials have introduced new possibilities to the condensed matter physics re …