Nuclear-order-induced quantum criticality and heavy-fermion superconductivity at ultra-low temperatures in YbRh$_2$Si$_2

The tetragonal heavy-fermion metal YbRh$_2$Si$_2$ orders antiferromagnetically at $T_{\rm N} = 70$ mK and exhibits an unconventional quantum critical point (QCP) of Kondo-destroying type at $B_{\rm N} = 60$ mT, for the magnetic field applied within the basal ($a,b$) plane. Ultra-low-temperature magn...

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Hauptverfasser:	Schuberth, Erwin, Wirth, S, Steglich, F
Format:	Artikel
Sprache:	eng
Schlagworte:	Physics - Strongly Correlated Electrons Physics - Superconductivity
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