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          Institute: MPI für Chemische Physik fester Stoffe     Collection: publications 2013     Display Documents



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ID: 670777.0, MPI für Chemische Physik fester Stoffe / publications 2013
Lifshitz transitions and quasiparticle de-renormalization in YbRh2Si2
Authors:Naren, H. R.; Friedemann, S.; Zwicknagl, G.; Krellner, C.; Geibel, C.; Steglich, F.; Wirth, S.
Language:English
Date of Publication (YYYY-MM-DD):2013-09-23
Title of Journal:New Journal of Physics
Volume:15
Start Page:093032-1
End Page:093032-13
Sequence Number of Article:093032
Review Status:not specified
Audience:Not Specified
Abstract / Description:We study the effect of magnetic fields up to 15 T on the heavy fermion state of YbRh2Si2 via Hall effect and magnetoresistivity measurements down to 50 mK. Our data show anomalies at three different characteristic fields. We compare our data to renormalized band structure calculations through which we identify Lifshitz transitions associated with the heavy fermion bands. The Hall measurements indicate that the de-renormalization of the quasiparticles, i.e. the destruction of the local Kondo singlets, occurs smoothly while the Lifshitz transitions occur within rather confined regions of the magnetic field.
External Publication Status:published
Document Type:Article
Communicated by:Ina Werner
Affiliations:MPI für chemische Physik fester Stoffe
Identifiers:ISI:000324729000002 [ID No:1]
ISSN:1367-2630 [ID No:2]
DOI:10.1088/1367-15/9/093032
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