000147644 001__ 147644
000147644 005__ 20241220131256.0
000147644 0247_ $$2doi$$a10.1103/PhysRevB.110.195415
000147644 0248_ $$2sideral$$a141099
000147644 037__ $$aART-2024-141099
000147644 041__ $$aeng
000147644 100__ $$aEncarnación, Pablo
000147644 245__ $$aFour-terminal voltage fluctuations in disordered graphene nanoribbons: Anderson and anomalous localization effects
000147644 260__ $$c2024
000147644 5203_ $$aVoltage is a sensitive quantity to quantum interference in coherent electronic transport. We study the voltage fluctuations in disordered graphene nanoribbons with zigzag and armchair edge terminations in a four-terminal configuration. We show that the average and standard deviation of the voltage oscillates with the separation of the attached voltage probes and depend on the coupling strength of the probes. The voltage fluctuations can be large enough to observe negative voltages for weakly coupled probes. As we numerically verified, the voltage fluctuations are described within a random matrix approach for weakly disordered nanoribbons at energies away from the Fermi energy. However, near the Fermi energy, zigzag nanoribbons exhibit Anderson localization, whereas electrons are anomalously localized in armchair nanoribbons. This distinction leads to different voltage statistics for zigzag and armchair nanoribbons.
000147644 536__ $$9info:eu-repo/grantAgreement/ES/MCIU/PGC2018-094684-B-C22
000147644 540__ $$9info:eu-repo/semantics/closedAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000147644 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000147644 700__ $$0(orcid)0000-0002-8726-7212$$aGopar, Victor A.$$uUniversidad de Zaragoza
000147644 7102_ $$12004$$2405$$aUniversidad de Zaragoza$$bDpto. Física Teórica$$cÁrea Física Teórica
000147644 773__ $$g110, 19 (2024), 195415 [10 pp.]$$pPhys. Rev. B$$tPhysical Review B$$x2469-9950
000147644 8564_ $$s1266771$$uhttps://zaguan.unizar.es/record/147644/files/texto_completo.pdf$$yVersión publicada
000147644 8564_ $$s3215293$$uhttps://zaguan.unizar.es/record/147644/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000147644 909CO $$ooai:zaguan.unizar.es:147644$$particulos$$pdriver
000147644 951__ $$a2024-12-20-12:01:08
000147644 980__ $$aARTICLE