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PACS. 21.65 -Nuclear matter.PACS. 21.10R -Collective structure in levels (inc. rotational bands). PACS. 21.60E -Collective models. PACS. 23.20 -Electromagnetic transitions.Abstract. -Rotational states and electromagnetic transitions among them are studied in a deformed even mass nucleus by a microscopic calculation. Spectra, E2 and M1 matrix elements among different bands are studied by diagonalization-after-projection. The Z Z -1 E 2 and M1 transitions among the p a s t states show a marked dependence on the even and odd angular momenta (signature dependence). The favoured transitions are those for which the angularmomentum change is in phase with the change in the core rotation.

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The anchoring structures of the binary mixture of 4′-n-octyl-4-cyanobiphenyl (8CB) and 4′-n-decyl-4-cyanobiphenyl (12CB) on molybdenum disulfide (MoS2) are directly observed, with molecular resolution, by scanning tunneling microscopy (STM) for the first time. The STM images indicate that the technique not only resolves the individual molecules, but it also makes a clear distinction between the 8CB and 12CB molecules by their different alkyl chain lengths. The binary mixture takes a bilayer (double-row) structure, consisting of an 8CB subunit and a 12CB subunit, while the pure 8CB molecules do not show a bilayer, but a monolayer (single-row) structure on MoS2. The ratio of 8CB and 12CB adsorbed on MoS2 substrate is different from that in the bulk.