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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202204298
|2 doi
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|a pubmed25n1141.xml
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|a (DE-627)NLM34254540X
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|a (NLM)35733393
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|a DE-627
|b ger
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|a eng
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|a McCluskey, Conor J
|e verfasserin
|4 aut
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|a Ultrahigh Carrier Mobilities in Ferroelectric Domain Wall Corbino Cones at Room Temperature
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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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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 18.10.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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|a Recently, electrically conducting heterointerfaces between dissimilar band insulators (such as lanthanum aluminate and strontium titanate) have attracted considerable research interest. Charge transport and fundamental aspects of conduction have been thoroughly explored. Perhaps surprisingly, similar studies on conceptually much simpler conducting homointerfaces, such as domain walls, are not nearly so well developed. Addressing this disparity, magnetoresistance is herein reported in approximately conical 180° charged domain walls, in partially switched ferroelectric thin-film single-crystal lithium niobate. This system is ideal for such measurements: first, the conductivity difference between domains and domain walls is unusually large (a factor of 1013 ) and hence currents driven through the thin film, between planar top and bottom electrodes, are overwhelmingly channeled along the walls; second, when electrical contact is made to the top and bottom of the domain walls and a magnetic field is applied along their cone axes, then the test geometry mirrors that of a Corbino disk: a textbook arrangement for geometric magnetoresistance measurement. Data imply carriers with extremely high room-temperature Hall mobilities of up to ≈3700 cm2 V-1 s-1 . This is an unparalleled value for oxide interfaces (and for bulk oxides) comparable to mobilities in other systems seen at cryogenic, rather than at room, temperature
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|a Journal Article
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|a Corbino disks
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|a carrier mobility
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|a domain walls
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|a ferroelectrics
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| 650 |
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4 |
|a magnetoresistance
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|a Colbear, Matthew G
|e verfasserin
|4 aut
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|a McConville, James P V
|e verfasserin
|4 aut
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|a McCartan, Shane J
|e verfasserin
|4 aut
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|a Maguire, Jesi R
|e verfasserin
|4 aut
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|a Conroy, Michele
|e verfasserin
|4 aut
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|a Moore, Kalani
|e verfasserin
|4 aut
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|a Harvey, Alan
|e verfasserin
|4 aut
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| 700 |
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|a Trier, Felix
|e verfasserin
|4 aut
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| 700 |
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|a Bangert, Ursel
|e verfasserin
|4 aut
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| 700 |
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|a Gruverman, Alexei
|e verfasserin
|4 aut
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|a Bibes, Manuel
|e verfasserin
|4 aut
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| 700 |
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|a Kumar, Amit
|e verfasserin
|4 aut
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| 700 |
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|a McQuaid, Raymond G P
|e verfasserin
|4 aut
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|a Gregg, J Marty
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 34(2022), 32 vom: 25. Aug., Seite e2204298
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
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|g volume:34
|g year:2022
|g number:32
|g day:25
|g month:08
|g pages:e2204298
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|u http://dx.doi.org/10.1002/adma.202204298
|3 Volltext
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