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Remote Mesoscopic Signatures of Induced Magnetic Texture in Graphene
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- Arabchigavkani, N. (author)
- Univ Buffalo State Univ New York, Dept Phys, Buffalo, NY 14260 USA.
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- Somphonsane, R. (author)
- King Mongkuts Inst Technol Ladkrabang, Dept Phys, Bangkok 10520, Thailand.
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- Ramamoorthy, H. (author)
- King Mongkuts Inst Technol Ladkrabang, Dept Elect Engn, Bangkok 10520, Thailand.
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- Univ Buffalo State Univ New York, Dept Phys, Buffalo, NY 14260 USA King Mongkuts Inst Technol Ladkrabang, Dept Phys, Bangkok 10520, Thailand. (creator_code:org_t)
- American Physical Society, 2021
- 2021
- English.
- In: Physical Review Letters. - : American Physical Society. - 0031-9007 .- 1079-7114. ; 126:8
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Mesoscopic conductance fluctuations are a ubiquitous signature of phase-coherent transport in small conductors, exhibiting universal character independent of system details. In this Letter, however, we demonstrate a pronounced breakdown of this universality, due to the interplay of local and remote phenomena in transport. Our experiments are performed in a graphene-based interaction-detection geometry, in which an artificial magnetic texture is induced in the graphene layer by covering a portion of it with a micromagnet. When probing conduction at some distance from this region, the strong influence of remote factors is manifested through the appearance of giant conductance fluctuations, with amplitude much larger than e(2)/h. This violation of one of the fundamental tenets of mesoscopic physics dramatically demonstrates how local considerations can be overwhelmed by remote signatures in phase-coherent conductors.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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- art (subject category)
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- Barut, B.
- He, K.
- Randle, M. D.
- Dixit, R.
- Sakanashi, K.
- Aoki, N.
- Zhang, K.
- Wang, L.
- Mei, W-N
- Dowben, P. A.
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- Bird, J. P.
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