-30 -20 -10 0 10 20 30 -3.2 -2.8 -2.4 -2.0 -1.6 (c) S (k B /e) k$_{B}$ T/ 0.00 0.04 0.08 NDTC (b) DTC (k B Q 0 $_{/}$Γ ) 0.0 0.4 0.8 1.2 E$_{C}$=E$_{F}$+ E/5 E$_{C}$=E$_{F}$+3 E/5 E$_{C}$=E$_{F}$+3 E/5 E$_{C}$=E$_{F}$+ E/5 E$_{C}$=E$_{F}$+3 E/5 E$_{C}$=E$_{F}$+ E/5 (a) Q (Q 0 ) Fig4