h /e oscillations in interlayer transport of delafossites

Science
Carsten PutzkePhilip J W Moll

Abstract

Microstructures can be carefully designed to reveal the quantum phase of the wave-like nature of electrons in a metal. Here, we report phase-coherent oscillations of out-of-plane magnetoresistance in the layered delafossites PdCoO2 and PtCoO2 The oscillation period is equivalent to that determined by the magnetic flux quantum, h/e, threading an area defined by the atomic interlayer separation and the sample width, where h is Planck's constant and e is the charge of an electron. The phase of the electron wave function appears robust over length scales exceeding 10 micrometers and persisting up to temperatures of T > 50 kelvin. We show that the experimental signal stems from a periodic field modulation of the out-of-plane hopping. These results demonstrate extraordinary single-particle quantum coherence lengths in delafossites.

References

Jun 15, 1986·Physical Review. B, Condensed Matter·Y Imry, N S Shiren
Jun 24, 1985·Physical Review Letters·R A WebbR B Laibowitz
Nov 18, 1985·Physical Review Letters·S DattaR Reifenberger
Apr 1, 1928·Proceedings of the National Academy of Sciences of the United States of America·C J Davisson, L H Germer
Jun 4, 2008·Physical Review Letters·I R SellersB D McCombe
Dec 17, 2009·Nature Materials·Hailin PengYi Cui
Sep 26, 2012·Physical Review Letters·Clifford W HicksEdward A Yelland
Aug 21, 2013·Physical Review Letters·Hiroshi TakatsuYoshiteru Maeno
Feb 24, 2016·Nature Communications·Li-Xian WangZhi-Min Liao
Mar 30, 2016·Nature Communications·N KikugawaL Balicas
Jan 13, 2017·Reports on Progress in Physics·A P Mackenzie
Jun 1, 2017·Science Advances·Maja D BachmannPhilip J W Moll
Nov 11, 2019·Nature Communications·Maja D BachmannPhilip J W Moll
Jun 13, 2020·Science·Carsten PutzkePhilip J W Moll

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Jun 13, 2020·Science·Carsten PutzkePhilip J W Moll

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