TY - JOUR
T1 - Interplay between kondo suppression and lifshitz transitions in YbRh 2Si2 at high magnetic fields
AU - Pfau, H.
AU - Daou, R.
AU - Lausberg, S.
AU - Naren, H. R.
AU - Brando, M.
AU - Friedemann, S.
AU - Wirth, S.
AU - Westerkamp, T.
AU - Stockert, U.
AU - Gegenwart, P.
AU - Krellner, C.
AU - Geibel, C.
AU - Zwicknagl, G.
AU - Steglich, F.
PY - 2013/6/19
Y1 - 2013/6/19
N2 - We investigate the magnetic field dependent thermopower, thermal conductivity, resistivity, and Hall effect in the heavy fermion metal YbRh 2Si2. In contrast to reports on thermodynamic measurements, we find in total three transitions at high fields, rather than a single one at 10 T. Using the Mott formula together with renormalized band calculations, we identify Lifshitz transitions as their origin. The predictions of the calculations show that all experimental results rely on an interplay of a smooth suppression of the Kondo effect and the spin splitting of the flat hybridized bands.
AB - We investigate the magnetic field dependent thermopower, thermal conductivity, resistivity, and Hall effect in the heavy fermion metal YbRh 2Si2. In contrast to reports on thermodynamic measurements, we find in total three transitions at high fields, rather than a single one at 10 T. Using the Mott formula together with renormalized band calculations, we identify Lifshitz transitions as their origin. The predictions of the calculations show that all experimental results rely on an interplay of a smooth suppression of the Kondo effect and the spin splitting of the flat hybridized bands.
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U2 - 10.1103/PhysRevLett.110.256403
DO - 10.1103/PhysRevLett.110.256403
M3 - Article
AN - SCOPUS:84879493152
SN - 0031-9007
VL - 110
JO - Physical review letters
JF - Physical review letters
IS - 25
M1 - 256403
ER -