Results 1 to 10 of about 22,991 (219)

Fluid Ferroelectric Filaments

Advanced Science, 2023
AbstractFreestanding slender fluid filaments of room‐temperature ferroelectric nematic liquid crystals are described. They are stabilized either by internal electric fields of bound charges formed due to polarization splay or by external voltage applied between suspending wires.
Marcell T. Máthé, Kelum Perera, Ágnes Buka, Péter Salamon, Antal Jákli   +4 more
openaire   +5 more sources

Fractional Quantum Ferroelectricity

Nature Communications, 2023
Abstract For an ordinary ferroelectric, the magnitude of the spontaneous electric polarization is at least one order of magnitude smaller than that resulting from the ionic displacement of the lattice vectors, and the direction of the spontaneous electric polarization is determined by the point group of the ferroelectric.
Junyi Ji, Guoliang Yu, Changsong Xu, H. J. Xiang   +3 more
openaire   +3 more sources

Multiferroicity in an organic charge-transfer salt: Electric-dipole-driven magnetism [PDF]

, 2011
Multiferroics, showing simultaneous ordering of electrical and magnetic degrees of freedom, are remarkable materials as seen from both the academic and technological points of view.
Alois Loidl, Benedikt Hartmann, C Hotta, Ch Joos, Chisa Hotta, D Starešinić, DF Smith, F Kagawa, F Nad, F Schrettle, F Schrettle, Florian Schrettle, H Katsura, H Li, HH Wang, HH Wang, IA Sergienko, J Van den Brink, Jens Müller, JM Williams, John A. Schlueter, K Kanoda, K Miyagawa, K Yamamoto, M Abdel-Jawad, M Dressel, M Fiebig, M Mostovoy, M Naka, M Pinter, Mariano de Souza, ME Lines, Michael Lang, N Toyota, P Lunkenheimer, Peter Lunkenheimer, Robert Rommel, S-W Cheong, Stephan Krohns, Y Shimizu, Y Takahide   +40 more
core   +2 more sources

Ferroelectric Electron Holography [PDF]

Microscopy and Microanalysis, 2002
Ferroelectrics are increasingly important as materials in semiconductor technology, e.g. for building non-volatile memory chips. For optimisation of the properties of such devices, there is an urgent need for methods, which analyse the ferroelectric properties at nanometer scale. Furthermore, the basic understanding of the interaction of ferroelectrics
Hannes, Lichte, Marianne, Reibold, Karin, Brand, Michael, Lehmann   +3 more
openaire   +2 more sources

Ferroelectric properties of charge-ordered alpha-(BEDT-TTF)2I3 [PDF]

, 2015
A detailed investigation of the out-of-plane electrical properties of charge-ordered alpha-(BEDT-TTF)2I3 provides clear evidence for ferroelectricity. Similar to multiferroic alpha-(BEDT-TTF)2Cu[N(CN)2]Cl, the polar order in this material is ascribed to ...
Hartmann, B., Krohns, S., Lang, M., Loidl, A., Lunkenheimer, P., Müller, J., Schweitzer, D.   +6 more
core   +2 more sources

Direct transition from a disordered to a multiferroic phase on a triangular lattice [PDF]

, 2007
Competing interactions and geometric frustration provide favourable conditions for exotic states of matter. Such competition often causes multiple phase transitions as a function of temperature and can lead to magnetic structures that break inversion ...
Broholm, C., Demianets, L. A., Gasparovic, G., Harris, A. B., Huang, Q., Jaime, M., Jorge, G. A., Kenzelmann, M., Lawes, G., Park, S., Ramirez, A. P., Shapiro, A. Ya.   +11 more
core   +3 more sources

Ferroelectricity enhancement in ferroelectric nanotubes [PDF]

Phase Transitions, 2007
In this paper we study the size effects of the ferroelectric nanotube phase diagrams and polar properties allowing for effective surface tension and depolarization field influence. The approximate analytical expression for the paraelectric-ferroelectric transition temperature dependence on the radii of nanotube, polarization gradient coefficient ...
Morozovska, A. N., Glinchuk, M. D., Eliseev, E. A.   +2 more
openaire   +2 more sources

Ferroelectric Dead Layer Driven by a Polar Interface [PDF]

, 2010
Based on first-principles and model calculations we investigate the effect of polar interfaces on the ferroelectric stability of thin-film ferroelectrics. As a representative model, we consider a TiO2-terminated BaTiO3 film with LaO monolayers at the two
A. F. Devonshire, A. F. Devonshire, C. Lichtensteiger, E. Y. Tsymbal, J. P. Velev, K. Janicka, L. D. Landau, M. K. Niranjan, M. Ye. Zhuravlev, S. S. Jaswal, Y. Wang   +10 more
core   +4 more sources

Orbital-Order Driven Ferroelectricity and Dipolar Relaxation Dynamics in Multiferroic GaMo$_4$S$_8$ [PDF]

, 2018
We present the results of broadband dielectric spectroscopy of GaMo$_4$S$_8$, a lacunar spinel system that recently was shown to exhibit non-canonical, orbitally-driven ferroelectricity.
Geirhos, K., Krohns, S., Kézsmárki, I., Lunkenheimer, P., Nakamura, H., Tabata, Y., Waki, T.   +6 more
core   +2 more sources

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

, 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 ...
Wang, Wenbin, Xu, Xiaoshan
core   +4 more sources