Results 71 to 80 of about 2,694,822 (232)

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

Characteristics of ferroelectric-ferroelastic domains in N{\'e}el-type skyrmion host GaV$_4$S$_8$ [PDF]

, 2017
GaV$_4$S$_8$ is a multiferroic semiconductor hosting N{\'e}el-type magnetic skyrmions dressed with electric polarization. At T$_s$ = 42K, the compound undergoes a structural phase transition of weakly first-order, from a non-centrosymmetric cubic phase ...
Bordács, Sándor, Butykai, Ádám, Döring, J, Eng, L. M., Kehr, S. C., Kézsmárki, István, Loidl, A., Milde, P., Neuber, E, Tsurkan, V.   +9 more
core   +2 more sources

Manipulating Ferroelectric Topological Polar Structures with Twisted Light

Advanced Materials, EarlyView.
We demonstrate dynamic control of ferroelectric order in quasi‐2D CsBiNb2O7 using twisted ultraviolet light carrying orbital angular momentum. Our approach harnesses non‐resonant multiphoton absorption and induced strain to modulate topological of ferroelectric polarization textures.
Nimish P. Nazirkar, Viet Tran, Pascal Bassène, Atoumane Ndiaye, Julie Barringer, Jie Jiang, Wonsuk Cha, Ross Harder, Jian Shi, Moussa N'Gom, Edwin Fohtung   +10 more
wiley   +1 more source

Domain wall nanoelectronics

, 2012
Domains in ferroelectrics were considered to be well understood by the middle of the last century: They were generally rectilinear, and their walls were Ising-like. Their simplicity stood in stark contrast to the more complex Bloch walls or Néel walls in
G. Catalán, J. Seidel, R. Ramesh, J. Scott   +3 more
semanticscholar   +1 more source

Giant directional dichroism of terahertz light in resonance with magnetic excitations of the multiferroic oxide BaCo$_2$Ge$_2$O$_7$ [PDF]

Physical Review Letters 106, 057403 (2011), 2010
We propose that concurrently magnetic and ferroelectric, i.e. multiferroic, compounds endowed with electrically-active magnetic excitations (electromagnons) provide a key to produce large directional dichroism for long wavelengths of light. By exploiting the control of ferroelectric polarization and magnetization in a multiferroic oxide Ba$_2$CoGe$_2$O$
arxiv   +1 more source

Positive-Negative Birefringence in Multiferroic Layered Metasurfaces

, 2017
We uncover and identify the regime for a magnetically and ferroelectrically controllable negative refraction of light traversing multiferroic, oxide-based metastructure consisting of alternating nanoscopic ferroelectric (SrTiO$_2$) and ferromagnetic (Y ...
Berakdar, Jamal, Chotorlishvili, Levan, Khomeriki, R., Tralle, Igor   +3 more
core   +2 more sources

Dynamics of Multiferroic Domain Wall in Spin-Cycloidal Ferroelectric DyMnO$_{3}$ [PDF]

, 2009
We report the dielectric dispersion of the giant magnetocapacitance (GMC) in multiferroic DyMnO$_{3}$ over a wide frequency range. The GMC is found to be attributable not to the softened electromagnon but to the electric-field-driven motion of ...
F. Kagawa, G. Matsumoto, H. Murakawa, L. E. Cross, M. Mochizuki, N. Furukawa, T. Mitsui, Y. Kaneko, Y. Onose, Y. Tokura   +9 more
core   +1 more source

Electric‐Field‐Driven Reversal of Ferromagnetism in (110)‐Oriented, Single Phase, Multiferroic Co‐Substituted BiFeO3 Thin Films

Advanced Materials, EarlyView.
Electric‐field‐induced magnetization reversal is a long‐sought‐after achievement in materials engineering for use in next‐generation, ultra‐low power consumption memory devices. This work demonstrates fully electric‐field‐driven switching of the out‐of‐plane component of magnetization in (110)‐oriented Co‐substituted BiFeO3 thin films at room ...
Takuma Itoh, Kei Shigematsu, Hena Das, Peter Meisenheimer, Kei Maeda, Koomok Lee, Mahir Manna, Surya Prakash Reddy, Sandhya Susarla, Paul Stevenson, Ramamoorthy Ramesh, Masaki Azuma   +11 more
wiley   +1 more source

Discovery of Intrinsic Ferromagnetic Ferroelectricity in Transition Metal Halides Monolayer [PDF]

, 2018
The realization of multiferroics in nanostructures, combined with a large electric dipole and ferromagnetic ordering, could lead to new applications, such as high-density multi-state data storage. Although multiferroics have been broadly studied for decades, ferromagnetic ferroelectricity is rarely explored, especially in two-dimensional (2D) systems ...
arxiv   +1 more source

Multiferroic hexagonal ferrites (h-RFeO$_3$, R=Y, Dy-Lu): an experimental review [PDF]

Modern Physics Letters B Vol. 28 (2014) 1430008, 2014
Hexagonal ferrites (h-RFeO$_3$, R=Y, Dy-Lu) have recently been identified as a new family of multiferroic complex oxides. The coexisting spontaneous electric and magnetic polarizations make h-RFeO$_3$ rare-case ferroelectric ferromagnets at low temperature.
arxiv   +1 more source