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Article
Nano-characterizations of low-dimensional nanostructural materials
Nondestructive nano-characterization methods were reviewed with respect to technical aspect and practicability. Micro-photoluminescence, cathodoluminscence and Raman spectroscopy with map** modes were invest...
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Article
Open AccessFlexopiezoelectricity at ferroelastic domain walls in WO3 films
The emergence of a domain wall property that is forbidden by symmetry in bulk can offer unforeseen opportunities for nanoscale low-dimensional functionalities in ferroic materials. Here, we report that the pie...
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Article
Open AccessArtificial creation and separation of a single vortex–antivortex pair in a ferroelectric flatland
Topological defects have received much attention due to their stability against perturbations and potential applications in nonvolatile high-density memory. Topologically non-trivial textures can be compelled ...
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Article
Open AccessConfigurable topological textures in strain graded ferroelectric nanoplates
Topological defects in matter behave collectively to form highly non-trivial structures called topological textures that are characterised by conserved quantities such as the winding number. Here we show that ...
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Article
Electric-field-induced spin disorder-to-order transition near a multiferroic triple phase point
The emergence of a triple phase point in a two-dimensional parameter space (such as pressure and temperature) can offer unforeseen opportunities for the coupling of two seemingly independent order parameters. ...
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Article
Enhancement of the anisotropic photocurrent in ferroelectric oxides by strain gradients
The phase separation of multiple competing structural/ferroelectric phases has attracted particular attention owing to its excellent electromechanical properties. Little is known, however, about the strain-gra...
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Article
Open AccessSingle ferroelectric-domain photovoltaic switch based on lateral BiFeO3 cells
The bistability of ferroelectric polarization states serves as a basis for solid-state memory. This phenomenon can also yield an interesting photovoltaic effect in such a way that the directional photocarrier ...
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Article
Concurrent transition of ferroelectric and magnetic ordering near room temperature
Strong spin-lattice coupling in condensed matter gives rise to intriguing physical phenomena such as colossal magnetoresistance and giant magnetoelectric effects. The phenomenological hallmark of such a strong...
