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Signature of Electronic Correlations in the Optical Conductivity of the Doped Semiconductor Si:P
Marco Hering, Marc Scheffler, Martin Dressel +1
Electronic transport in highly doped but still insulating silicon at low temperatures is dominated by hopping between localized states; it serves as a model system of a disordered…
Fermi-liquid instabilities at magnetic quantum phase transitions
Hilbert v. Löhneysen, Achim Rosch, Matthias Vojta +1
This review discusses instabilities of the Fermi-liquid state of conduction electrons in metals with particular emphasis on magnetic quantum critical points. Both the existing theo…
Suppression of ferromagnetism in CeSi_1.81 under temperature and pressure
S. Drotziger, C. Pfleiderer, M. Uhlarz +4
We have studied the pressure dependence of the magnetization of single crystalline CeSi_1.81. At ambient pressure ferromagnetism develops below T_C = 9.5 Below ~ 5 K an additional…