Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Bera, Sandip"'
Autor:
Bera, Sandip
The lattice Hamiltonian with the presence of a chiral magnetic isotropic Dzyaloshinskii-Moriya interaction (DMI) in a square and hexagonal lattice is numerically solved to give the full phase diagram consisting of skyrmions and merons in different pa
Externí odkaz:
http://arxiv.org/abs/2307.07835
Autor:
Chatterjee, Pritam, Banik, Sayan, Bera, Sandip, Ghosh, Arnob Kumar, Pradhan, Saurabh, Saha, Arijit, Nandy, Ashis K.
Publikováno v:
Phys. Rev. B (Letter) 109, L121301 (2024)
We report on a realistic and rather general scheme where noncollinear magnetic textures proximitized with the most common $s$-wave superconductor can appear as the alternative to $p$-wave superconductor{--}the prime proposal to realize two-dimensiona
Externí odkaz:
http://arxiv.org/abs/2303.03938
Publikováno v:
Ann. Phys. (Berlin) 535, 2200460 (2023)
In mesoscopic physics, the application of a time-periodic drive leads to novel transport behaviour, which is absent in the static regimes. Here we consider a quantum pumping protocol, such that the quasiparticles of Weyl/multi-Weyl and nodal-line sem
Externí odkaz:
http://arxiv.org/abs/2209.11747
Autor:
Bera, Sandip, Mandal, Ipsita
Publikováno v:
J. Phys.: Condens. Matter 33, 295502 (2021)
We consider tunneling of quasiparticles through a rectangular quantum well, subject to periodic driving. The quasiparticles are the itinerant charges in two-dimensional and three-dimensional semimetals having a quadratic band-touching (QBT) point in
Externí odkaz:
http://arxiv.org/abs/2103.05335
Autor:
Bera, Sandip, Mandal, Sudhansu S.
Publikováno v:
Journal of Physics: Condensed Matter 33 (2021) 115801
Motivated by the recent observation [Zeissler et al, Nature Comm. 11, 428 (2020)] of enigmatic radius-independent skyrmion Hall angle in chiral magnets, we derive skyrmion Hall angle based on the recent solution of skyrmions characterized by the sole
Externí odkaz:
http://arxiv.org/abs/2003.08596
Autor:
Bera, Sandip, Mandal, Sudhansu S.
Publikováno v:
Journal of Physics: Condensed Matter, 33 (2021) 255801
By introducing biquadratic together with usual bilinear ferromagnetic nearest neighbor exchange interaction in a square lattice, we find that the energy of the spin-wave mode is minimized at a finite wavevector for a vanishingly small Dzyaloshinskii-
Externí odkaz:
http://arxiv.org/abs/1911.03171
Autor:
Bera, Sandip, Mandal, Sudhansu S.
Publikováno v:
Phys. Rev. Research 1, 033109 (2019)
We find closed-form solution of the Euler equation for a chiral magnet in terms of a skyrmion or a meron depending on the relative strengths of magnetic anisotropy and magnetic field. We show that the relevant length scales for these solutions primar
Externí odkaz:
http://arxiv.org/abs/1906.00210
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Autor:
Tatmiya, Ritisha N., Padhiyar, Shital M., Chandramohan, Sangh, Bera, Sandip K., Bhatt, Shradda B., Iquebal, Mir Asif, Ambalam, Padma S., Tomar, Rukam S.
Publikováno v:
Plant Pathology; Dec2024, Vol. 73 Issue 9, p2500-2515, 16p
Akademický článek
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