Results 121 to 130 of about 22,234 (272)

Unusual Thermal Transport in Few‐Layer Van der Waals Antiferromagnet CrOCl

open access: yesAdvanced Science, EarlyView.
Thermal transport serves as an ultra‐sensitive probe for detecting the magnetic order in 2D materials. Using the suspended thermal bridge method enhanced by Wheatstone bridges, it is, for the first time, observed anomalous critical behavior in few‐layer CrOCl near its Néel temperature.
Yu Yang   +10 more
wiley   +1 more source

On the theory of phase transition in muliferroics

open access: yes, 2009
In this paper we investigate peculiarities of phase transition high-symmetry - incommensurate phase in inhomogeneous systems. We obtain the nonlinear dispersion law and then present a renormalization group analysis of phase transitions in multiferroics ...
Aharony A, B R Gadjiev
core   +1 more source

Colossal Spin-Phonon Anomalies and the Ferroelectric Phase Transition in the Model Multiferroic Bifeo3 [PDF]

open access: yes, 2005
We report a temperature-dependent Raman and neutron scattering investigation of the multiferroic material bismuth ferrite BiFeO3 (BFO).
arxiv   +1 more source

Artificial Room‐Temperature Ferromagnetism of Bulk van der Waals VSe2

open access: yesAdvanced Science, EarlyView.
Artificial room‐temperature vdW ferromagnetism of bulk VSe2 has been presented via nano‐crystallization. By constructing the MFM junction with nano‐crystallized VSe2, vdW ferromagnetism has been spatially resolved with a ferromagnetic hysteresis curve.
Jinhyoung Lee   +28 more
wiley   +1 more source

An Electrode Design Strategy to Minimize Ferroelectric Imprint Effect

open access: yesAdvanced Science, EarlyView.
A tunable electrode design using La0.7Sr0.3MnO3 enables precise modulation of ferroelectric imprint through oxygen pressure–controlled work function engineering. By applying this strategy to both perovskite and fluorite systems, the built‐in field is effectively suppressed, enabling low‐voltage, high‐endurance ferroelectric devices, including Fe‐FETs ...
Yu‐Wei Chen   +11 more
wiley   +1 more source

Detection of coherent magnons via ultrafast pump-probe reflectance spectroscopy in multiferroic Ba0.6Sr1.4Zn2Fe12O22

open access: yes, 2008
We report the detection of a magnetic resonance mode in multiferroic Ba0.6Sr1.4Zn2Fe12O22 using time domain pump-probe reflectance spectroscopy. Magnetic sublattice precession is coherently excited via picosecond thermal modification of the exchange ...
A. J. Taylor   +6 more
core   +1 more source

Exploring the Bioengineering Potential of CoFe2O4‐BaTiO3 Nanoparticles: A Dive into the Magnetoelectric Coefficient

open access: yesAdvanced Electronic Materials, EarlyView.
Magnetoelectric (ME) core–shell nanoparticles, particularly made of CoFe2O4‐BaTiO3, are emerging as promising materials for bioengineering applications. This perspective explores the evolution of measurement methodologies for their ME coefficient (α), highlighting variations in reported values.
Martina Lenzuni   +4 more
wiley   +1 more source

Enhancement of Photocatalytic Activity in BiFeO3 Nanoparticles through Electrical Polarization

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This study highlights the enhancement of photocatalytic activity in BiFeO3 nanoparticles through electrical polarization (poling). Herein, the proposed mechanism is illustrated, showcasing how poling aligns ferroelectric domains, improves charge separation, and increases the availability of photogenerated carriers.
Jhen‐Yang Wu   +11 more
wiley   +1 more source

Magnetic‐Field Induced Charge Accumulation in Scalable Magnetoelectric PVDF‐TrFE/Ni Composite Devices

open access: yesAdvanced Physics Research, EarlyView.
This study reports strong magnetoelectric effects in PVDF‐TrFE/Ni bilayer composites. Direct measurements of charge accumulation reveal high induced polarization, corresponding to open circuit voltages of 75 mV. Finite element simulations are in good agreement with experiments and demonstrate device scalability.
Federica Luciano   +10 more
wiley   +1 more source

Emerging Multiferroic Memories [PDF]

open access: yes, 2014
Thus far in this book, we have focused on ferroelectric and magnetic spin torque transfer memories. In this chapter, we describe the recent discoveries in the emerging field of multiferroic-based memories. In the last decade, considerable attention has been focused on the search for and characterization of new multiferroic materials as scientists and ...
Ramamoorthy Ramesh   +4 more
openaire   +3 more sources

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