Zobrazeno 1 - 10
of 126
pro vyhledávání: '"Dutta, Paramita"'
Publikováno v:
Phys. Rev. B 109, 235419 (2024)
The emergence of gapless surface states, known as Fermi arcs (FAs), is one of the unique properties of the novel topological Weyl semimetal (WSM). However, extracting the signatures of FAs from the bulk states has always been a challenge as both of t
Externí odkaz:
http://arxiv.org/abs/2402.07490
Autor:
Debnath, Debika, Dutta, Paramita
Publikováno v:
Phys. Rev. B 109, 174511 (2024)
We theoretically explore Josephson diode effect (JDE) in superconductor/quantum dot (QD)/superconductor junction in the presence of a magnetic field and Rashba spin-orbit interaction (RSOI). We calculate the Josephson current in our QD junction using
Externí odkaz:
http://arxiv.org/abs/2402.00817
Autor:
Chatterjee, Pritam, Dutta, Paramita
Publikováno v:
New Journal of Physics 26, 073035 (2024)
We theoretically show quasiparticles-driven thermal diode effect (TDE) in an inversion symmetry-broken (ISB) Weyl superconductor (WSC)-Weyl semimetal (WSM)-WSC Josephson junction. A Zeeman field perpendicular to the WSM region of the thermally-biased
Externí odkaz:
http://arxiv.org/abs/2312.05008
Publikováno v:
New Journal of Physics 26, 053027 (2024)
In recent times, Bogoliubov Fermi surfaces (BFSs) in superconductors (SCs) have drawn significant attention due to a substantial population of Bogoliubov quasiparticles (BQPs) together with Cooper pairs (CPs) in them. The BQPs as zero energy excitati
Externí odkaz:
http://arxiv.org/abs/2308.07376
Publikováno v:
Physical Review Research (Letter) 6, L012062 (2024)
The analysis of waiting times of electron transfers has recently become experimentally accessible owing to advances in noninvasive probes working in the short-time regime. We study electron waiting times in a topological Andreev interferometer: a sup
Externí odkaz:
http://arxiv.org/abs/2306.14964
Autor:
Dutta, Paramita
Publikováno v:
New Journal of Physics 25, 083024 (2023)
We explore the phase-dependent charge and heat current in the short Josephson junctions with two normal metal regions attached at opposite ends, formed at helical edge states of two-dimensional topological insulators (TIs). For all finite phases, an
Externí odkaz:
http://arxiv.org/abs/2210.00936
Autor:
Patel, Pratik D., Sharma, Akariti, Devanarayanan, Bharathiganesh, Dutta, Paramita, Singh, Navinder
Publikováno v:
J. Phys.: Condens. Matter, 35, 035501, (2023)
We report various phase transitions in half-Heusler TbPtBi compound using Density Functional Theory (DFT). Specifically, inclusion of spin-orbit coupling (SOC) leads to band inversion resulting in transition from the metallic to the topological semim
Externí odkaz:
http://arxiv.org/abs/2207.09704
Publikováno v:
Phys. Rev. B 106, L100502 (2022)
We consider a finite-size topological Josephson junction formed at the edge of a two-dimensional topological insulator in proximity to conventional superconductors and study the impact of Cooper pair symmetries on the electron transport. We find that
Externí odkaz:
http://arxiv.org/abs/2206.00081
Publikováno v:
Phys. Rev. Research 3, 033255 (2021)
The possible symmetries of the superconducting pair amplitude is a consequence of the fermionic nature of the Cooper pairs. For spin-$1/2$ systems this leads to the $\mathcal{SPOT}=-1$ classification of superconductivity, where $\mathcal{S}$, $\mathc
Externí odkaz:
http://arxiv.org/abs/2106.11983
Publikováno v:
J. Phys.: Condens. Matter, 34, 195304, (2022)
Thermoelectric junctions are often made of components of different materials characterized by distinct transport properties. Single material junctions, with the same type of charge carriers, have also been considered to investigate various classical
Externí odkaz:
http://arxiv.org/abs/2104.12628