Antiferroelectric Altermagnets: Antiferroelectricity Alters Magnets
Physical Review Letters,
Год журнала:
2025,
Номер
134(10)
Опубликована: Март 13, 2025
Magnetoelectric
coupling
is
crucial
for
uncovering
fundamental
phenomena
and
advancing
technologies
in
high-density
data
storage
energy-efficient
devices.
The
emergence
of
altermagnets,
which
unify
the
advantages
ferromagnets
antiferromagnets,
offers
unprecedented
opportunities
magnetoelectric
coupling.
However,
electrically
tuning
altermagnets
remains
an
outstanding
challenge.
Here,
we
demonstrate
how
this
challenge
can
be
overcome
by
using
antiferroelectricity
ferroelectricity
to
modulate
spin
splitting
employing
a
universal,
symmetry-based
design
principle
supported
effective
model.
We
introduce
unexplored
class
multiferroics:
antiferroelectric
(AFEAM),
where
altermagnetism
coexist
single
material.
From
first-principles
calculations,
validate
feasibility
AFEAM
well-established
van
der
Waals
metal
thio(seleno)phosphates
perovskite
oxides.
reveal
ranging
from
two-dimensional
monolayers
three-dimensional
bulk
structures.
Remarkably,
even
weak
electric
field
effectively
toggle
polarization
switching
between
ferroelectric
states.
Our
findings
not
only
enrich
understanding
but
also
pave
way
controlled
spintronic
multiferroic
Язык: Английский
2D Van der Waals Sliding Ferroelectrics Toward Novel Electronic Devices
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 21, 2025
Abstract
Ferroelectric
materials,
celebrated
for
their
switchable
polarization,
have
undergone
significant
evolution
since
early
discovery
in
Rochelle
salt.
Initial
challenges,
including
water
solubility
and
brittleness,
are
overcome
with
the
development
of
perovskite
ferroelectrics,
which
enable
creation
stable,
high‐quality
thin
films
suitable
semiconductor
applications.
As
demand
miniaturization
nanoelectronics
has
increased,
research
shifted
toward
low‐dimensional
materials.
Traditional
ferroelectrics
often
lose
properties
at
nanoscale;
however,
2D
van
der
Waals
(vdW)
CuInP
2
S
6
α‐In
Se
3
,
emerged
as
promising
alternatives.
The
recent
sliding
ferroelectricity,
where
polarization
is
linked
to
polar
stacking
configuration
originally
non‐polar
monolayers,
significantly
broadened
scope
ferroelectrics.
This
review
offers
a
comprehensive
examination
orders
vdW
stacking‐order‐linked
ferroelectric
structures,
manifestations
metallic,
insulating
semiconducting
Additionally,
it
explores
applications
discusses
future
prospects
nanotechnology.
Язык: Английский
Advances in 2D heterostructures for quantum computing applications: A review
Inorganic Chemistry Communications,
Год журнала:
2025,
Номер
unknown, С. 113980 - 113980
Опубликована: Янв. 1, 2025
Язык: Английский
Sliding ferroelectric controllable topological phases in the Bi2Te3/MnBi2Te4
Physical review. B./Physical review. B,
Год журнала:
2025,
Номер
111(3)
Опубликована: Янв. 24, 2025
Generic approach for integrating ferroelectricity and superconductivity into a single two-dimensional monolayer
Physical review. B./Physical review. B,
Год журнала:
2025,
Номер
111(9)
Опубликована: Март 17, 2025
Язык: Английский
Diverse and Tunable Charge Density Waves, Superconductivity, and Band Topology in Two‐dimensional 1T‐M2S (M = Zr, Hf)
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 17, 2025
Abstract
Nowadays,
understanding
the
competition
and
coexistence
of
multiple
phases
in
2D
materials
is
crucial.
In
this
work,
charge
density
waves
(CDW),
superconductivity,
nontrivial
topology
a
new
kind
material
1T‐
M
2
S
with
=
Zr,
Hf
are
investigated,
which
CDW
materials.
On
one
hand,
×
ground
state
superconductivity
coexist,
phase
can
be
eliminated
by
anharmonic
effect
at
room
temperature.
other
under
biaxial
compressive
strain,
weak
strong
competitive
interactions
Zr
discovered,
respectively,
also
display
non‐trivial
topological
properties.
By
solving
anisotropic
Eliashberg
equations,
strained
demonstrated
to
single‐gap
superconductors.
These
findings
provide
valuable
perspectives
understand
complex
interaction
between
interplay
exotic
quantum
states
Язык: Английский
2D Multifunctional Spin‐Orbit Coupled Dirac Nodal Line Materials
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 27, 2025
Abstract
2D
spin‐orbit
coupled
Dirac
nodal
line
(SOC‐DNL)
materials
integrated
with
multifunctional
properties
are
the
cornerstone
for
constructing
an
abundant
application
pool,
but
remain
largely
limited.
Here,
a
combination
of
symmetry
analysis,
high‐throughput
screening,
and
first‐principles
calculations
employed
to
identify
comprehensive
set
473
nonmagnetic
antiferromagnetic
(AFM)
SOC‐DNL
materials,
spanning
5
layer
groups
12
magnetic
space
groups.
Building
on
potential
these
it
further
integrates
their
topological
electride,
multiferroic,
characteristics,
revealing
unique
systems
expanded
functionalities
promising
applications.
Specifically,
three
representative
cases
highlighted
illustrate
distinctive
features:
i)
The
electride
material
so‐MoS₂,
which
exhibits
floating
surface
states
highly
anisotropic
Fermi
surfaces;
ii)
ferroelastic
β‐PbO,
demonstrates
multiferroic
behavior
driven
by
hole‐doping‐induced
magnetism
polarization‐switch‐enabled
phase
transitions;
iii)
AFM
system
Ti
2
O,
features
lower
work
function,
significantly
enhancing
its
catalytic
performance
NH
3
synthesis.
These
findings
not
only
establish
database
exploration
also
enhance
multifunctionality,
paving
way
diverse
applications
in
quantum
science,
spintronics,
energy‐related
technologies.
Язык: Английский