Strain-gradient effects in nanoscale-engineered magnetoelectric materials
Understanding strain gradient phenomena is of paramount importance in diverse areas of condensed matter physics. This effect is responsible for flexoelectricity in dielectric materials, and it plays a crucial role in the mechanical behavior of nanoscale-sized specimens. In magnetoelectric composites...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2021-02-01
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| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/5.0037421 |
| _version_ | 1818431665717903360 |
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| author | Aliona Nicolenco Muireann de h-Óra Chao Yun Judith MacManus-Driscoll Jordi Sort |
| author_facet | Aliona Nicolenco Muireann de h-Óra Chao Yun Judith MacManus-Driscoll Jordi Sort |
| author_sort | Aliona Nicolenco |
| collection | DOAJ |
| description | Understanding strain gradient phenomena is of paramount importance in diverse areas of condensed matter physics. This effect is responsible for flexoelectricity in dielectric materials, and it plays a crucial role in the mechanical behavior of nanoscale-sized specimens. In magnetoelectric composites, which comprise piezoelectric or ferroelectric (FE) materials coupled to magnetostrictive (MS) phases, the strain gradient can add to any uniform strain that is present to boost the strength of the coupling. Hence, it could be advantageous to develop new types of functionally graded multiferroic composites (for information technologies) or magnetic-field-driven flexoelectric/magnetostrictive platforms for wireless neurons/muscle cell stimulation (in biomedicine). In MS or FE materials with non-fully constrained geometries (e.g., cantilevers, porous layers, or vertically aligned patterned films), strain gradients can be generated by applying a magnetic field (to MS phases) or an electric field (to, e.g., FE phases). While multiferroic composites operating using uniform strains have been extensively investigated in the past, examples of new nanoengineering strategies to achieve strain-gradient-mediated magnetoelectric effects that could ultimately lead to high flexomagnetoelectric effects are discussed in this Perspective. |
| first_indexed | 2024-12-14T15:52:55Z |
| format | Article |
| id | doaj.art-63600a6988cb4be1a1c4b91a0d5ff04b |
| institution | Directory Open Access Journal |
| issn | 2166-532X |
| language | English |
| last_indexed | 2024-12-14T15:52:55Z |
| publishDate | 2021-02-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Materials |
| spelling | doaj.art-63600a6988cb4be1a1c4b91a0d5ff04b2022-12-21T22:55:20ZengAIP Publishing LLCAPL Materials2166-532X2021-02-0192020903020903-910.1063/5.0037421Strain-gradient effects in nanoscale-engineered magnetoelectric materialsAliona Nicolenco0Muireann de h-Óra1Chao Yun2Judith MacManus-Driscoll3Jordi Sort4Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, SpainDepartment of Materials Science and Metallurgy, University of Cambridge, CB3 OFS Cambridge, United KingdomDepartment of Materials Science and Metallurgy, University of Cambridge, CB3 OFS Cambridge, United KingdomDepartment of Materials Science and Metallurgy, University of Cambridge, CB3 OFS Cambridge, United KingdomDepartament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, SpainUnderstanding strain gradient phenomena is of paramount importance in diverse areas of condensed matter physics. This effect is responsible for flexoelectricity in dielectric materials, and it plays a crucial role in the mechanical behavior of nanoscale-sized specimens. In magnetoelectric composites, which comprise piezoelectric or ferroelectric (FE) materials coupled to magnetostrictive (MS) phases, the strain gradient can add to any uniform strain that is present to boost the strength of the coupling. Hence, it could be advantageous to develop new types of functionally graded multiferroic composites (for information technologies) or magnetic-field-driven flexoelectric/magnetostrictive platforms for wireless neurons/muscle cell stimulation (in biomedicine). In MS or FE materials with non-fully constrained geometries (e.g., cantilevers, porous layers, or vertically aligned patterned films), strain gradients can be generated by applying a magnetic field (to MS phases) or an electric field (to, e.g., FE phases). While multiferroic composites operating using uniform strains have been extensively investigated in the past, examples of new nanoengineering strategies to achieve strain-gradient-mediated magnetoelectric effects that could ultimately lead to high flexomagnetoelectric effects are discussed in this Perspective.http://dx.doi.org/10.1063/5.0037421 |
| spellingShingle | Aliona Nicolenco Muireann de h-Óra Chao Yun Judith MacManus-Driscoll Jordi Sort Strain-gradient effects in nanoscale-engineered magnetoelectric materials APL Materials |
| title | Strain-gradient effects in nanoscale-engineered magnetoelectric materials |
| title_full | Strain-gradient effects in nanoscale-engineered magnetoelectric materials |
| title_fullStr | Strain-gradient effects in nanoscale-engineered magnetoelectric materials |
| title_full_unstemmed | Strain-gradient effects in nanoscale-engineered magnetoelectric materials |
| title_short | Strain-gradient effects in nanoscale-engineered magnetoelectric materials |
| title_sort | strain gradient effects in nanoscale engineered magnetoelectric materials |
| url | http://dx.doi.org/10.1063/5.0037421 |
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