Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Sayantika Bhowal"'
Autor:
Sayantika Bhowal, Nicola A. Spaldin
Publikováno v:
Physical Review Research, Vol 6, Iss 4, p 043141 (2024)
We investigate the role of electric toroidal dipoles in the prototypical ferroaxial materials NiTiO_{3} and K_{2}Zr(PO_{4})_{2}, which undergo ferroaxial structural phase transitions of order-disorder and displacive type, respectively. Using first-pr
Externí odkaz:
https://doaj.org/article/d30d0c5227d9478490613e74e40daa23
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013251 (2024)
We demonstrate that two phenomena, the kinetic magnetoelectric effect and the nonlinear Hall effect, are universal to polar metals as a consequence of their coexisting and contraindicated polarization and metallicity. We show that measurement of the
Externí odkaz:
https://doaj.org/article/0213e1e5c7cd4092b6cca43038ee4df9
Autor:
Sayantika Bhowal, Nicola A. Spaldin
Publikováno v:
Physical Review X, Vol 14, Iss 1, p 011019 (2024)
We show that time-reversal symmetry-broken, centrosymmetric antiferromagnets with nonrelativistic spin splitting of d-wave symmetry—the so-called d-wave altermagnets—are conveniently described in terms of the ferroic ordering of magnetic octupole
Externí odkaz:
https://doaj.org/article/0c8c0a59da0543c99a78d482e226286a
Autor:
Daniel O'Neill, Sayantika Bhowal, Nicola A. Spaldin, Michael Fechner, Jon Duffy, Urs Staub, Stephen P. Collins
Publikováno v:
Open Research Europe, Vol 1 (2022)
Background: Magnetoelectric multipoles, which break both space-inversion and time-reversal symmetries, play an important role in the magnetoelectric response of a material. Motivated by uncovering the underlying fundamental physics of the magnetoelec
Externí odkaz:
https://doaj.org/article/685ff90371b8492f8cf7b8d7a7d90427
Autor:
Sayantika Bhowal, Nicola A. Spaldin
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p 033185 (2021)
Magnetoelectric multipoles, which are odd under both space-inversion I and time-reversal T symmetries, are fundamental in understanding and characterizing magnetoelectric materials. However, the detection of these magnetoelectric multipoles is often
Externí odkaz:
https://doaj.org/article/d41b56e618104cf6a97cee53a6c3d56e
Autor:
Stephen P. Collins, Michael Fechner, Nicola A. Spaldin, Jon A. Duffy, Daniel O'Neill, Urs Staub, Sayantika Bhowal
Publikováno v:
Open Research Europe
Open Research Europe, 1
Open Research Europe, 1
Background: Magnetoelectric multipoles, which break both space-inversion and time-reversal symmetries, play an important role in the magnetoelectric response of a material. Motivated by uncovering the underlying fundamental physics of the magnetoelec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2ecffef97d0492f2ceb4cfe00215423
https://doi.org/10.12688/openreseurope.13863.2
https://doi.org/10.12688/openreseurope.13863.2
Autor:
Manjil Das, Sayantika Bhowal, Jhuma Sannigrahi, Abhisek Bandyopadhyay, Anupam Banerjee, Giannantonio Cibin, Dmitry Khalyavin, Niladri Banerjee, Devashibhai Adroja, Indra Dasgupta, Subham Majumdar
Publikováno v:
Physical Review B. 105
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e40774c0d934ee27cf87919bfa23da9
https://doi.org/10.1103/physrevb.105.134421
https://doi.org/10.1103/physrevb.105.134421
Using an effective Dirac model, we study the orbital Hall effect (OHE) in bilayers of transition metal dichalcogenides with 2H stacking (2H-TMD). We use first-order perturbation theory in the interlayer coupling of the bilayer system to obtain analyt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::166c4a776a8df9c89faf3e01e1f4573d
http://arxiv.org/abs/2201.03491
http://arxiv.org/abs/2201.03491
Autor:
Nicola Spaldin, SAYANTIKA BHOWAL
Publikováno v:
Physical Review Letters, 128 (22)
We develop a general theory to classify magnetic skyrmions and related spin textures in terms of their magnetoelectric multipoles. Since magnetic skyrmions are now established in insulating materials, where the magnetoelectric multipoles govern the l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::565347777f438e4def3e868b16ff261c
Autor:
Indra Dasgupta, Sayantika Bhowal
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 33(45)
Spin-orbit effects in heavy 5$d$ transition metal oxides, in particular, iridates, have received enormous current interest due to the prediction as well as the realization of a plethora of exotic and unconventional magnetic properties. While a bulk o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc549eacd4c6662373976af62845a532
https://pubmed.ncbi.nlm.nih.gov/34352745
https://pubmed.ncbi.nlm.nih.gov/34352745