Zobrazeno 1 - 10
of 273
pro vyhledávání: '"Nicola A. Spaldin"'
Autor:
Ahmed H. Mokhtar, David Serban, Daniel G. Porter, Frank Lichtenberg, Stephen P. Collins, Alessandro Bombardi, Nicola A. Spaldin, Marcus C. Newton
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract The three-dimensional domain structure of ferroelectric materials significantly influences their properties. The ferroelectric domain structure of improper multiferroics, such as YMnO3, is driven by a non-ferroelectric order parameter, leadi
Externí odkaz:
https://doaj.org/article/1c65c3e660d445918f16dbabe563386d
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p 033263 (2024)
We perform first-principles density functional calculations to elucidate structural, electronic, and magnetic properties at the interface of (0001)Cr_{2}O_{3}−(111)Pt bilayers. This investigation is motivated by the fact that, despite the promise o
Externí odkaz:
https://doaj.org/article/ed417c7bc859404b8fb9fda4fa801f83
Autor:
Riccardo Catena, Nicola A. Spaldin
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p 033230 (2024)
We combine the nonrelativistic effective theory of dark matter (DM)-electron interactions with linear response theory to obtain a formalism that fully accounts for screening and collective excitations in DM-induced electronic transition rate calculat
Externí odkaz:
https://doaj.org/article/86e49bb214024106891011a38eedcc3e
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p 033122 (2024)
We present a combined density-functional theory and single-site dynamical mean-field theory (DMFT) study of vanadium dioxide (VO_{2}) using an unconventional set of bond-centered orbitals as the basis of the correlated subspace. VO_{2} is a prototypi
Externí odkaz:
https://doaj.org/article/d69a913dd9b848c083628745f090987c
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p L042018 (2023)
We present ab initio calculations of hidden magnetoelectric multipolar order in Cr_{2}O_{3} and its iron-based analog, α-Fe_{2}O_{3}. First, we discuss the connection between the order of such hidden multipoles and the linear magnetoelectric effect.
Externí odkaz:
https://doaj.org/article/c21c1ec0693e42088c7c04ce7a0f2881
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:
Nicola A. Spaldin, Tobias Esswein
Publikováno v:
Open Research Europe, Vol 3 (2023)
Background: Motivated by the recent experimental discovery of strongly surface-plane-dependent superconductivity at surfaces of KTaO3 single crystals, we calculate the electron-phonon coupling strength, λ, of doped KTaO3 along the reciprocal space h
Externí odkaz:
https://doaj.org/article/4d487b27ba8047d89194a43702c5def7
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043258 (2023)
We use a formalism that describes electron ejections from graphenelike targets by dark matter (DM) scattering for general forms of scalar and spin-1/2 DM-electron interactions in combination with state-of-the-art density functional calculations to pr
Externí odkaz:
https://doaj.org/article/4b0ae443df1f482f828f1421af6e9806
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043257 (2023)
We develop a formalism to describe electron ejections from graphenelike targets by dark matter (DM) scattering for general forms of scalar and spin-1/2 DM-electron interactions, and we compare their applicability and accuracy within the density funct
Externí odkaz:
https://doaj.org/article/b90a1ea1c1324507b0bd9b31277df0f6