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Oscillating Magnetoresistance in Graphene p–n Junctions at Intermediate Magnetic Fields

Overweg, Hiske, Eggimann, Hannah , Liu, Ming-Hao , Varlet, Anastasia, Eich, Marius, Simonet, Pauline, Lee, Yongjin, Watanabe, Kenji , Taniguchi, Takashi, Richter, Klaus, Fal’ko, Vladimir I., Ensslin, Klaus and Ihn, Thomas (2017) Oscillating Magnetoresistance in Graphene p–n Junctions at Intermediate Magnetic Fields. Nano Letters 17 (5), pp. 2852-2857.

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Date of publication of this fulltext: 29 May 2017 11:28

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Other URL: http://pubs.acs.org/doi/full/10.1021/acs.nanolett.6b05318


Abstract

We report on the observation of magnetoresistance oscillations in graphene p-n junctions. The oscillations have been observed for six samples, consisting of single-layer and bilayer graphene, and persist up to temperatures of 30 K, where standard Shubnikov-de Haas oscillations are no longer discernible. The oscillatory magnetoresistance can be reproduced by tight-binding simulations. We attribute this phenomenon to the modulated densities of states in the n- and p-regions.


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Item type:Article
Date:6 April 2017
Institutions:Physics > Institute of Theroretical Physics
Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter
Projects:SFB 689: Spinphänomene in reduzierten Dimensionen
Identification Number:
ValueType
10.1021/acs.nanolett.6b05318DOI
1612.07624arXiv ID
Keywords:QUANTUM HALL REGIME; Graphene; ballistic transport; p-n junction; magnetoresistance
Dewey Decimal Classification:500 Science > 540 Chemistry & allied sciences
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Partially
Item ID:35696
Owner only: item control page

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