%0 Journal Article %1 Putzke1234 %A Putzke, Carsten %A Bachmann, Maja D. %A McGuinness, Philippa %A Zhakina, Elina %A Sunko, Veronika %A Konczykowski, Marcin %A Oka, Takashi %A Moessner, Roderich %A Stern, Ady %A König, Markus %A Khim, Seunghyun %A Mackenzie, Andrew P. %A Moll, Philip J.W. %D 2020 %I American Association for the Advancement of Science %J Science %K b %N 6496 %P 1234--1238 %R 10.1126/science.aay8413 %T h/e oscillations in interlayer transport of delafossites %U https://science.sciencemag.org/content/368/6496/1234 %V 368 %X 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 PdCoO$_2$ and PtCoO$_2$. 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.

@article{Putzke1234, 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 PdCoO$_2$ and PtCoO$_2$. 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.}, added-at = {2020-12-28T16:29:50.000+0100}, author = {Putzke, Carsten and Bachmann, Maja D. and McGuinness, Philippa and Zhakina, Elina and Sunko, Veronika and Konczykowski, Marcin and Oka, Takashi and Moessner, Roderich and Stern, Ady and König, Markus and Khim, Seunghyun and Mackenzie, Andrew P. and Moll, Philip J.W.}, biburl = {https://www.bibsonomy.org/bibtex/2a0532c5e29f5039f8d14e0da848ec892/ctqmat}, day = 12, description = {h/e oscillations in interlayer transport of delafossites | Science}, doi = {10.1126/science.aay8413}, eprint = {https://science.sciencemag.org/content/368/6496/1234.full.pdf}, interhash = {4fdad2dffea31ec305324ba822843ef6}, intrahash = {a0532c5e29f5039f8d14e0da848ec892}, issn = {0036-8075}, journal = {Science}, keywords = {b}, month = {6}, number = 6496, pages = {1234--1238}, publisher = {American Association for the Advancement of Science}, timestamp = {2023-10-19T13:18:18.000+0200}, title = {h/e oscillations in interlayer transport of delafossites}, url = {https://science.sciencemag.org/content/368/6496/1234}, volume = 368, year = 2020 }