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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202106401
|2 doi
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|a pubmed24n1116.xml
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|a (DE-627)NLM334945577
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|a (NLM)34958699
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Dai, Cheng
|e verfasserin
|4 aut
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| 245 |
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|a Tunable Nanoscale Evolution and Topological Phase Transitions of a Polar Vortex Supercrystal
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 17.03.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a Understanding the phase transitions and domain evolutions of mesoscale topological structures in ferroic materials is critical to realizing their potential applications in next-generation high-performance storage devices. Here, the behaviors of a mesoscale supercrystal are studied with 3D nanoscale periodicity and rotational topology phases in a PbTiO3 /SrTiO3 (PTO/STO) superlattice under thermal and electrical stimuli using a combination of phase-field simulations and X-ray diffraction experiments. A phase diagram of temperature versus polar state is constructed, showing the formation of the supercrystal from a mixed vortex and a-twin state and a temperature-dependent erasing process of a supercrystal returning to a classical a-twin structure. Under an in-plane electric field bias at room temperature, the vortex topology of the supercrystal irreversibly transforms to a new type of stripe-like supercrystal. Under an out-of-plane electric field, the vortices inside the supercrystal undergo a topological phase transition to polar skyrmions. These results demonstrate the potential for the on-demand manipulation of polar topology and transformations in supercrystals using electric fields. The findings provide a theoretical understanding that may be utilized to guide the design and control of mesoscale polar structures and to explore novel polar structures in other systems and their topological nature
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|a Journal Article
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|a nanoscale evolution
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4 |
|a phase-field simulations
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| 650 |
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4 |
|a supercrystals
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| 650 |
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4 |
|a thermal stability
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| 650 |
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4 |
|a topological phase transitions
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| 700 |
1 |
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|a Stoica, Vladimir Alexandru
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Das, Sujit
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hong, Zijian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Martin, Lane W
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ramesh, Ramamoorthy
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Freeland, John W
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wen, Haidan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gopalan, Venkatraman
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Long-Qing
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 34(2022), 11 vom: 19. März, Seite e2106401
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:34
|g year:2022
|g number:11
|g day:19
|g month:03
|g pages:e2106401
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202106401
|3 Volltext
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|a AR
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|d 34
|j 2022
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|c 03
|h e2106401
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