Inhomogeneous Kondo-lattice in geometrically frustrated Pr2Ir2O7

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dc.citation.articleNumber1377en_US
dc.citation.journalTitleNature Communicationsen_US
dc.citation.volumeNumber12en_US
dc.contributor.authorKavai, Mariamen_US
dc.contributor.authorFriedman, Joelen_US
dc.contributor.authorSherman, Kyleen_US
dc.contributor.authorGong, Mingdaen_US
dc.contributor.authorGiannakis, Ioannisen_US
dc.contributor.authorHajinazar, Samaden_US
dc.contributor.authorHu, Haoyuen_US
dc.contributor.authorGrefe, Sarah E.en_US
dc.contributor.authorLeshen, Justinen_US
dc.contributor.authorYang, Qiuen_US
dc.contributor.authorNakatsuji, Satoruen_US
dc.contributor.authorKolmogorov, Aleksey N.en_US
dc.contributor.authorSi, Qimiaoen_US
dc.contributor.authorLawler, Michaelen_US
dc.contributor.authorAynajian, Pegoren_US
dc.contributor.orgRice Center for Quantum Materialsen_US
dc.date.accessioned2021-04-21T15:46:25Zen_US
dc.date.available2021-04-21T15:46:25Zen_US
dc.date.issued2021en_US
dc.description.abstractMagnetic fluctuations induced by geometric frustration of local Ir-spins disturb the formation of long-range magnetic order in the family of pyrochlore iridates. As a consequence, Pr2Ir2O7 lies at a tuning-free antiferromagnetic-to-paramagnetic quantum critical point and exhibits an array of complex phenomena including the Kondo effect, biquadratic band structure, and metallic spin liquid. Using spectroscopic imaging with the scanning tunneling microscope, complemented with machine learning, density functional theory and theoretical modeling, we probe the local electronic states in Pr2Ir2O7 and find an electronic phase separation. Nanoscale regions with a well-defined Kondo resonance are interweaved with a non-magnetic metallic phase with Kondo-destruction. These spatial nanoscale patterns display a fractal geometry with power-law behavior extended over two decades, consistent with being in proximity to a critical point. Our discovery reveals a nanoscale tuning route, viz. using a spatial variation of the electronic potential as a means of adjusting the balance between Kondo entanglement and geometric frustration.en_US
dc.identifier.citationKavai, Mariam, Friedman, Joel, Sherman, Kyle, et al.. "Inhomogeneous Kondo-lattice in geometrically frustrated Pr2Ir2O7." <i>Nature Communications,</i> 12, (2021) Springer Nature: https://doi.org/10.1038/s41467-021-21698-z.en_US
dc.identifier.digitals41467-021-21698-zen_US
dc.identifier.doihttps://doi.org/10.1038/s41467-021-21698-zen_US
dc.identifier.urihttps://hdl.handle.net/1911/110307en_US
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleInhomogeneous Kondo-lattice in geometrically frustrated Pr2Ir2O7en_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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