Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Niravkumar D. Patel"'
Autor:
Niravkumar D. Patel, Vijay K. Patel
Publikováno v:
Communications in Computer and Information Science ISBN: 9783031105500
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a17072f67e95f8de62e96a2495ed811
https://doi.org/10.1007/978-3-031-10551-7_5
https://doi.org/10.1007/978-3-031-10551-7_5
Publikováno v:
Physical Review B. 101
It is now well established that the Kitaev honeycomb model in a magnetic field along the [111] direction harbors an intermediate gapless quantum spin liquid (QSL) phase sandwiched between a gapped non-Abelian QSL at low fields $Hl{H}_{c1}$ and a part
Publikováno v:
npj Quantum Materials, Vol 5, Iss 1, Pp 1-9 (2020)
We introduce a variational state for one-dimensional two-orbital Hubbard models that intuitively explains the recent computational discovery of pairing in these systems when hole doped. Our ansatz is an optimized linear superposition of Affleck–Ken
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c866a8a9ff88de15182bf6a5fbd8ad13
Autor:
Jacek Herbrych, J. Heverhagen, Niravkumar D. Patel, Gonzalo Alvarez, Elbio Dagotto, Adriana Moreo, Maria Daghofer
Publikováno v:
Physical Review Letters. 123
Inelastic neutron scattering recently confirmed the theoretical prediction of a $\uparrow\uparrow\downarrow\downarrow$-magnetic state along the legs of quasi-one-dimensional (quasi-1D) iron-based ladders in the orbital-selective Mott phase (OSMP). We
Autor:
Niravkumar D. Patel, Steven Johnston, Elbio Dagotto, Adriana Moreo, Gonzalo Alvarez, Alberto Nocera
Publikováno v:
Communications Physics, Vol 2, Iss 1, Pp 1-8 (2019)
Resonant Inelastic X-Ray Scattering (RIXS) experiments on the iron-based ladder BaFe2Se3 unveiled an unexpected two-peak structure associated with local orbital (dd) excitations in a block-type antiferromagnetic phase. A mixed character between corre
We investigate the spin and orbital correlations of a superexchange model with spin $S=1$ and orbital $L=1$ relevant for $5{d}^{4}$ transition-metal Mott insulators [O. N. Meetei et al., Phys. Rev. B 91, 054412 (2015)], using exact diagonalization an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78860a56d6a330d89eb37c112e65da88
Autor:
Alberto Nocera, Elbio Dagotto, Niravkumar D. Patel, Yan Wang, Thomas Maier, Steven Johnston, Gonzalo Alvarez
Publikováno v:
Physical Review B. 97
We study the magnetic and charge dynamical response of a Hubbard model in a two-leg ladder geometry using the density matrix renormalization group (DMRG) method and the random phase approximation within the fluctuation-exchange approximation (RPA+FLE
Autor:
Niravkumar D. Patel, Nandini Trivedi
The Kitaev model with an applied magnetic field in the [Formula: see text] direction shows two transitions: from a nonabelian gapped quantum spin liquid (QSL) to a gapless QSL at [Formula: see text] and a second transition at a higher field [Formula:
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9916f4da4e66936e2ae6aea1bdea7bd0
Magnetic interactions are widely believed to play a crucial role in the microscopic mechanism leading to high critical temperature superconductivity. It is therefore important to study the signatures of pairing in the magnetic excitation spectrum of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::675e680b923e949b3580eca531344cad
http://arxiv.org/abs/1707.02626
http://arxiv.org/abs/1707.02626
We employ a recently developed computational many-body technique to study for the first time the half-filled Anderson-Hubbard model at finite temperature and arbitrary correlation ($U$) and disorder ($V$) strengths. Interestingly, the narrow zero tem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcaa949ff66afa22f647d2a865113975
http://arxiv.org/abs/1702.05612
http://arxiv.org/abs/1702.05612