Role of electron correlation effects in ?-Pu and "115"-Pu-based unconventional superconductors

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00441298" target="_blank" >RIV/68378271:_____/14:00441298 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.crhy.2014.06.006" target="_blank" >http://dx.doi.org/10.1016/j.crhy.2014.06.006</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.crhy.2014.06.006" target="_blank" >10.1016/j.crhy.2014.06.006</a>

Result language
angličtina
Original language name
Role of electron correlation effects in ?-Pu and "115"-Pu-based unconventional superconductors
Original language description
Electronic structure calculations combining the local density approximation with the exact diagonalization of the Anderson impurity model show intermediate-valence ground state and delocalization of the Pu atom 5f-shell in PuCoGa5 and in ?-Pu. The localmagnetic moment is compensated by a moment formed in the surrounding cloud of conduction electrons. For PuCoGa5 and ?-Pu the compensation is complete and the ground state of the Anderson impurity model is a singlet. This can be important for analyses ofthe superconducting pairing mechanism in PuCoGa5. It is likely that in PuCoGa5 unconventional d-wave superconductivity is mediated by the 5f-states valence fluctuations, rather than by antiferromagnetic fluctuations.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
<a href="/en/project/GAP204%2F10%2F0330" target="_blank" >GAP204/10/0330: Nanostructured actinide-based materials: Theory and experiment</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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