Results 11 to 20 of about 21,239 (224)
Ferroelectric or non-ferroelectric: Why so many materials exhibit “ferroelectricity” on the nanoscale [PDF]
Applied Physics Reviews, 2017 Ferroelectric materials have remained one of the major focal points of condensed matter physics and materials science for over 50 years. In the last 20 years, the development of voltage-modulated scanning probe microscopy techniques, exemplified by Piezoresponse force microscopy (PFM) and associated time- and voltage spectroscopies, opened a pathway to
Rama K. Vasudevan +4 more
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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. +11 more
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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. +6 more
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Ferroelectric negative capacitance [PDF]
Nature Reviews Materials, 2019 The capacitor is a key element of electronic devices and is characterized by positive capacitance. However, a negative capacitance (NC) behaviour may occur in certain cases and implies a local voltage drop opposed to the overall applied bias. Therefore, a local NC response results in voltage enhancement across the rest of the circuit. Within a suitably
Igor A. Luk'yanchuk +4 more
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Ferroelectricity in Spiral Magnets [PDF]
Physical Review Letters, 2006 4 pages, 4 ...
Maxim Mostovoy, Maxim Mostovoy
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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 +10 more
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Ferroelectricity at ferroelectric domain walls
, 2013 10 pages with 6 figures embedded. Includes Suppl. Mats.
Wojdel, Jacek C., Iniguez, Jorge
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Plasmonic Ferroelectric Modulators [PDF]
Journal of Lightwave Technology, 2019 Integrated ferroelectric plasmonic modulators featuring large bandwidths, broad optical operation range, resilience to high temperature and ultracompact footprint are introduced. Measurements show a modulation bandwidth of 70 GHz and a temperature stability up to 250 C.
Andreas Messner +9 more
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Nonfrustrated magnetoelectric with incommensurate magnetic order in magnetic field
, 2007 We discuss a model nonfrustrated magnetoelectric in which strong enough magnetoelectric coupling produces incommensurate magnetic order leading to ferroelectricity. Properties of the magnetoelectric in magnetic field directed perpendicular to wave vector
A. V. Syromyatnikov +3 more
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Interplay of 4f-3d Magnetism and Ferroelectricity in DyFeO3
, 2013 DyFeO3 exhibits a weak ferromagnetism (TNFe ~ 645 K) that disappears below a spin-reorientation (Morin) transition at TSRFe ~ 50 K. It is also known that applied magnetic field induces ferroelectricity at the magnetic ordering temperature of Dy-ions ...
Chakrabarti, Mahuya +5 more
core +1 more source