Zobrazeno 1 - 10
of 124
pro vyhledávání: '"Arun Paramekanti"'
Autor:
Sreekar Voleti, Koushik Pradhan, Subhro Bhattacharjee, Tanusri Saha-Dasgupta, Arun Paramekanti
Publikováno v:
npj Quantum Materials, Vol 8, Iss 1, Pp 1-10 (2023)
Abstract Quantum materials with non-Kramers doublets are a fascinating venue to realize multipolar hidden orders. Impurity probes which break point group symmetries, such as implanted muons or substitutional impurities, split the non-Kramers degenera
Externí odkaz:
https://doaj.org/article/2c15fe2a3f49470f9ff5177a1a7104af
Autor:
M. M. Piva, J. C. Souza, V. Brousseau-Couture, Sopheak Sorn, K. R. Pakuszewski, Janas K. John, C. Adriano, M. Côté, P. G. Pagliuso, Arun Paramekanti, M. Nicklas
Publikováno v:
Physical Review Research, Vol 5, Iss 1, p 013068 (2023)
In the ferromagnetic (FM) Weyl semimetal CeAlSi both space-inversion and time-reversal symmetries are broken. Our quantum oscillation (QO) data indicate that the FM ordering modifies the Fermi-surface topology and also leads to an unusual drop in the
Externí odkaz:
https://doaj.org/article/abaf4b5302884054ad9aecb15c1d1e98
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)
Higher-order multipolar phases are unusual states that can form in correlated materials and are difficult to observe as they do not directly couple to conventional probes. Patri et al. theoretically show that angle-dependent magnetostriction measurem
Externí odkaz:
https://doaj.org/article/d33bd4e6bde8478c9363aa23e0e4a3b9
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033176 (2020)
Recent experiments have examined the impact of a magnetic field on ferroquadrupolar orders in the intermetallic Kondo material PrTi_{2}Al_{20}. Motivated by this, we use extensive Monte Carlo simulations to study a diamond lattice XY model of non-Kra
Externí odkaz:
https://doaj.org/article/98b923beb69a4025b29dd8aae1247c8e
Autor:
Bo Yuan, Ilia Khait, Guo-Jiun Shu, F. C. Chou, M. B. Stone, J. P. Clancy, Arun Paramekanti, Young-June Kim
Publikováno v:
Physical Review X, Vol 10, Iss 1, p 011062 (2020)
The discovery of massless Dirac electrons in graphene and topological Dirac-Weyl materials has prompted a broad search for bosonic analogues of such Dirac particles. Recent experiments have found evidence for Dirac magnons above an Ising-like ferroma
Externí odkaz:
https://doaj.org/article/271acb7e47984872a2c9ece56164fe30
Publikováno v:
New Journal of Physics, Vol 16, Iss 9, p 093057 (2014)
Recent experimental discoveries have brought a diverse set of broken symmetry states to the center stage of research on cuprate superconductors. Here, we focus on a thematic understanding of the diverse phenomenology by exploring a strong-coupling me
Externí odkaz:
https://doaj.org/article/526e05b4503c4ca9b1e1121ab44eca2b
Publikováno v:
Proceedings of the National Academy of Sciences. 120
We propose and study a two-orbital lattice extension of the Sachdev-Ye-Kitaev model in the large-$N$ limit. The phase diagram of this model features a high temperature isotropic strange metal which undergoes a first-order thermal transition into a ne
The breaking of chiral and time-reversal symmetries provides a pathway to exotic quantum phenomena and topological phases. In particular, the breaking of chiral (mirror) symmetry in quantum materials has been shown to have important technological app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce6d16f11c692cbed40161d51355da5a
Krein-Hermitian Hamiltonians, i.e., Hamiltonians Hermitian with respect to an indefinite inner product, have emerged as an important class of non-Hermitian Hamiltonians in physics, encompassing both single-particle bosonic Bogoliubov-de Gennes (BdG)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b47b51c9ac993265140b0674a7dcc428
Publikováno v:
Physical Review B. 104
Recent experiments have discovered multipolar orders in a variety of $d$-orbital Mott insulators. Motivated by uncovering the exchange interactions which underlie octupolar order proposed in the osmate double perovskites, we study a two-site model us