Quantum engineered Kondo lattices
Abstract
Atomic manipulation techniques have provided a bottom-up approach to investigating the unconventional properties and complex phases of strongly correlated electron materials. By engineering artificial systems containing tens to thousands of atoms with tailored electronic or magnetic properties, it has become possible to explore how quantum many-body effects emerge as the size of a system is increased from the nanoscale to the mesoscale. Here we investigate both theoretically and experimentally the quantum engineering of nanoscale Kondo lattices – Kondo droplets – exemplifying nanoscopic replicas of heavy-fermion materials. We demonstrate that by changing a droplet’s real-space geometry, we can not only create coherently coupled Kondo droplets whose properties asymptotically approach those of a quantum-coherent Kondo lattice, but also markedly increase or decrease the droplet’s Kondo temperature. Furthermore we report on the discovery of a new quantum phenomenon – the Kondo echo – a signature of droplets containing Kondo holes functioning as direct probes of spatially extended, quantum-coherent Kondo cloud correlations.
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Univ. of Chicago, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1619762
- Alternate Identifier(s):
- OSTI ID: 1574368; OSTI ID: 1593520
- Grant/Contract Number:
- AC02-76SF00515; FG02-05ER46225
- Resource Type:
- Published Article
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Name: Nature Communications Journal Volume: 10 Journal Issue: 1; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United Kingdom
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Figgins, Jeremy, Mattos, Laila S., Mar, Warren, Chen, Yi-Ting, Manoharan, Hari C., and Morr, Dirk K. Quantum engineered Kondo lattices. United Kingdom: N. p., 2019.
Web. doi:10.1038/s41467-019-13446-1.
Figgins, Jeremy, Mattos, Laila S., Mar, Warren, Chen, Yi-Ting, Manoharan, Hari C., & Morr, Dirk K. Quantum engineered Kondo lattices. United Kingdom. https://doi.org/10.1038/s41467-019-13446-1
Figgins, Jeremy, Mattos, Laila S., Mar, Warren, Chen, Yi-Ting, Manoharan, Hari C., and Morr, Dirk K. Fri .
"Quantum engineered Kondo lattices". United Kingdom. https://doi.org/10.1038/s41467-019-13446-1.
@article{osti_1619762,
title = {Quantum engineered Kondo lattices},
author = {Figgins, Jeremy and Mattos, Laila S. and Mar, Warren and Chen, Yi-Ting and Manoharan, Hari C. and Morr, Dirk K.},
abstractNote = {Atomic manipulation techniques have provided a bottom-up approach to investigating the unconventional properties and complex phases of strongly correlated electron materials. By engineering artificial systems containing tens to thousands of atoms with tailored electronic or magnetic properties, it has become possible to explore how quantum many-body effects emerge as the size of a system is increased from the nanoscale to the mesoscale. Here we investigate both theoretically and experimentally the quantum engineering of nanoscale Kondo lattices – Kondo droplets – exemplifying nanoscopic replicas of heavy-fermion materials. We demonstrate that by changing a droplet’s real-space geometry, we can not only create coherently coupled Kondo droplets whose properties asymptotically approach those of a quantum-coherent Kondo lattice, but also markedly increase or decrease the droplet’s Kondo temperature. Furthermore we report on the discovery of a new quantum phenomenon – the Kondo echo – a signature of droplets containing Kondo holes functioning as direct probes of spatially extended, quantum-coherent Kondo cloud correlations.},
doi = {10.1038/s41467-019-13446-1},
journal = {Nature Communications},
number = 1,
volume = 10,
place = {United Kingdom},
year = {Fri Dec 06 00:00:00 EST 2019},
month = {Fri Dec 06 00:00:00 EST 2019}
}
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https://doi.org/10.1038/s41467-019-13446-1
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