3.1 Oxygen Etching Effect
43
Fig. 3.3 a Nascent distribution of Al n
− and Al n Cu − clusters. b Nascent Al n Cu − distribution.
c Oxygen-etched Al n Cu − distribution (1.25% partial pressures of oxygen). Peaks corresponding
to pure aluminum clusters were superficially removed from (b) and (c) to discriminate Al n Cu −
A
B
Fig. 3.4 A Nascent distribution of Al n
− and Al n Mg m
− (a), nascent Al n Mg m
− distribution (b),
and oxygen-etched Al n Mg m
− distribution (c), where the peaks corresponding to pure aluminum
clusters were superficially removed to discriminate Al n Mg m
− . B A diagram showing the stability
of Al–Mg alloy clusters correlative with the number of valence electrons
43
Fig. 3.3 a Nascent distribution of Al n
− and Al n Cu − clusters. b Nascent Al n Cu − distribution.
c Oxygen-etched Al n Cu − distribution (1.25% partial pressures of oxygen). Peaks corresponding
to pure aluminum clusters were superficially removed from (b) and (c) to discriminate Al n Cu −
A
B
Fig. 3.4 A Nascent distribution of Al n
− and Al n Mg m
− (a), nascent Al n Mg m
− distribution (b),
and oxygen-etched Al n Mg m
− distribution (c), where the peaks corresponding to pure aluminum
clusters were superficially removed to discriminate Al n Mg m
− . B A diagram showing the stability
of Al–Mg alloy clusters correlative with the number of valence electrons