Research output: Contribution to journal › Article › peer-review
Temperature-Independent Fermi Surface in the Kondo Lattice YbRh2Si2. / Kummer, K.; Patil, S.; Chikina, A.; Guettler, M.; Hoeppner, M.; Generalov, A.; Danzenbaecher, S.; Seiro, S.; Hannaske, A.; Krellner, C.; Kucherenko, Yu.; Shi, M.; Radovic, M.; Rienks, E.; Zwicknagl, G.; Matho, K.; Allen, J. W.; Laubschat, C.; Geibel, C.; Vyalikh, D. V.
In: Physical Review X, Vol. 5, No. 1, 2015.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Temperature-Independent Fermi Surface in the Kondo Lattice YbRh2Si2
AU - Kummer, K.
AU - Patil, S.
AU - Chikina, A.
AU - Guettler, M.
AU - Hoeppner, M.
AU - Generalov, A.
AU - Danzenbaecher, S.
AU - Seiro, S.
AU - Hannaske, A.
AU - Krellner, C.
AU - Kucherenko, Yu.
AU - Shi, M.
AU - Radovic, M.
AU - Rienks, E.
AU - Zwicknagl, G.
AU - Matho, K.
AU - Allen, J. W.
AU - Laubschat, C.
AU - Geibel, C.
AU - Vyalikh, D. V.
PY - 2015
Y1 - 2015
N2 - Strongly correlated electron systems are one of the central topics in contemporary solid-state physics. Prominent examples for such systems are Kondo lattices, i.e., intermetallic materials in which below a critical temperature, the Kondo temperature T-K, the magnetic moments become quenched and the effective masses of the conduction electrons approach the mass of a proton. In Ce-and Yb-based systems, this so-called heavy-fermion behavior is caused by interactions between the strongly localized 4f and itinerant electrons. A major and very controversially discussed issue in this context is how the localized electronic degree of freedom gets involved in the Fermi surface (FS) upon increasing the interaction between both kinds of electrons or upon changing the temperature. In this paper, we show that the FS of a prototypic Kondo lattice, YbRh2Si2, does not change its size or shape in a wide temperature range extending from well below to far above the single-ion Kondo temperature T-K similar to 25 K of this syste
AB - Strongly correlated electron systems are one of the central topics in contemporary solid-state physics. Prominent examples for such systems are Kondo lattices, i.e., intermetallic materials in which below a critical temperature, the Kondo temperature T-K, the magnetic moments become quenched and the effective masses of the conduction electrons approach the mass of a proton. In Ce-and Yb-based systems, this so-called heavy-fermion behavior is caused by interactions between the strongly localized 4f and itinerant electrons. A major and very controversially discussed issue in this context is how the localized electronic degree of freedom gets involved in the Fermi surface (FS) upon increasing the interaction between both kinds of electrons or upon changing the temperature. In this paper, we show that the FS of a prototypic Kondo lattice, YbRh2Si2, does not change its size or shape in a wide temperature range extending from well below to far above the single-ion Kondo temperature T-K similar to 25 K of this syste
U2 - 10.1103/PhysRevX.5.011028
DO - 10.1103/PhysRevX.5.011028
M3 - Article
VL - 5
JO - Physical Review X
JF - Physical Review X
SN - 2160-3308
IS - 1
ER -
ID: 4034499