Results 41 to 50 of about 4,674 (238)

Improper ferroelectricity and multiferroism in 2HBaMnO$_3$

, 2013
Using first-principles calculations, we study theoretically the stable 2H hexagonal structure of BaMnO3. We show that from the stable high temperature P63/mmc structure, the compound should exhibit an improper ferroelectric structural phase transition to a P63cm ground state.
Varignon, Julien, Ghosez, Philippe
openaire   +3 more sources

Interacting antiferromagnetic and ferroelectric domain structures of multiferroics [PDF]

physica status solidi (RRL) – Rapid Research Letters, 2009
AbstractThe correlation between antiferromagnetic and ferroelectric domain structures in multiferroics has been studied. The role of magnetoelectric interactions in the formation of antiferromagnetic domain structure has been analysed. It has been shown that the major physical mechanism binding antiferromagnetic domains to ferroelectric ones is the ...
Z. V. Gareeva, A. K. Zvezdin
openaire   +1 more source

Magnetic control of large room-temperature polarization

, 2009
Numerous authors have referred to room-temperature magnetic switching of large electric polarizations as The Holy Grail of magnetoelectricity.We report this long-sought effect using a new physical process of coupling between magnetic and ferroelectric ...
Ashok Kumar, Astrov D N, Astrov D N, Bao D, Correa M, Cross L E, Curie P, Dzyaloshinskii I E, Dzyaloshinskii I E, Fox D L, Freeman A J, G L Sharma, J F Scott, Karmarkar M, R Blinc, R Pirc, R S Katiyar, Samara G A, Scott J F, Smolenskii G A, Smolenskii G A, Smolenskii G A, van den Brink J, Ventura J, Wu E, Ye Z-G   +25 more
core   +2 more sources

Efficient Multifunctional Response and Polarization Switching in BiFeO3–PbZr0.58Ti0.42O3–MnFe2O4‐Based Triphasic Composites for Advanced Pulsating Applications

Advanced Engineering Materials, EarlyView.
Triphasic BiFeO3–PbZr0.58Ti0.42O3–MnFe2O4 composites exhibit enhanced ferroelectric and magnetic behavior, achieving 70.76% energy‐storage efficiency and improved polarization switching. The coupling between ferroelectric and magnetic phases enables multifunctional performance, making these composites promising candidates for next‐generation energy ...
Hassan Raza Khan, Muzzamal Hussain, Rabia Baqi, Shahid Ali, Abdulaziz Alhazaa, Muhammad Ali Shar, Ammar Tariq, Shahid Atiq   +7 more
wiley   +1 more source

Electric Control of Spin Helicity in a Magnetic Ferroelectric

, 2007
Magnetic ferroelectrics or multiferroics, which are currently extensively explored, may provide a good arena to realize a novel magnetoelectric function.
Arima, T., Goto, T., Hirota, K., Matsuura, M., Sagayama, H., Tokura, Y., Yamasaki, Y.   +6 more
core   +1 more source

Spin-Wave and Electromagnon Dispersions in Multiferroic MnWO4 as Observed by Neutron Spectroscopy: Isotropic Heisenberg Exchange versus Anisotropic Dzyaloshinskii-Moriya Interaction [PDF]

, 2016
High resolution inelastic neutron scattering reveals that the elementary magnetic excitations in multiferroic MnWO4 consist of low energy dispersive electromagnons in addition to the well-known spin-wave excitations.
Brueckel, Th., Faulhaber, E., Fu, Z., Jin, W. T., Kumar, C. M. N., Nandi, S., Schneidewind, A., Su, Y., Xiao, Y.   +8 more
core   +3 more sources

The properties of isolated chiral skyrmions in thin magnetic films

New Journal of Physics, 2016
Axisymmetric solitonic states ( chiral skyrmions ) were first predicted theoretically more than two decades ago. However, until recently they have been observed in a form of skyrmionic condensates (hexagonal lattices and other mesophases).
A O Leonov, T L Monchesky, N Romming, A Kubetzka, A N Bogdanov, R Wiesendanger   +5 more
doaj   +1 more source

Multiferroics - the challenge of coupling magnetism and ferroelectricity [PDF]

Europhysics News, 2009
International audience ; no ...
Kreisel, Jens, Kenzelmann, Michel
openaire   +2 more sources

2D Multifunctional Spin‐Orbit Coupled Dirac Nodal Line Materials

Advanced Functional Materials, EarlyView.
A total of 473 nonmagnetic and antiferromagnetic 2D spin‐orbit coupled Dirac nodal line materials are screened, spanning 5 layer groups and 12 magnetic space groups. Furthermore, it integrates their topological properties with electride, multiferroic, and magnetic characteristics, revealing unique systems with expanded functionalities and promising ...
Weizhen Meng, Ying Liu, Jialin Gong, Yalong Jiao, Xiaoming Zhang, Wenxian Li, Zhenxiang Cheng, Tie Yang   +7 more
wiley   +1 more source

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

Advanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp, Brahmdutta Dixit, Yifei Yang, Deyuan Lyu, Thomas Peterson, Qi Jia, Yu‐Chia Chen, Jian‐Ping Wang   +7 more
wiley   +1 more source