Electron–electron interaction dominated resistivity minimum in quasi-continuous Ag nanocluster films

Magnetism of Co nanocluster films

Room-temperature Coulomb-blockade-dominated transport in gold nanocluster structures

In this paper we discuss the near-room-temperature electrical transport characteristics of structures made from ligand-stabilized metal clusters. The structures show threshold behaviour, nonlinear current–voltage characteristics and radio-frequency-induced plateaux consistent with Coulomb-blockade-dominated transport in disordered arrays of metal dots. Samples having triphenylphosphine and octa...

Magnetic properties of dilute FePt:C nanocluster films

Resistivity Minimum in Highly Frustrated Itinerant Magnets.

We study the transport properties of frustrated itinerant magnets comprising localized classical moments, which interact via exchange with the conduction electrons. Strong frustration stabilizes a liquidlike spin state, which extends down to temperatures well below the effective Ruderman-Kittel-Kasuya-Yosida interaction scale. The crossover into this state is characterized by spin structure fac...

Surface-enhanced Raman scattering from ordered Ag nanocluster arrays.

We have examined the effect of ordered silver nanocluster substrates on the surface-enhanced Raman spectrum of rhodamine 6G (R6G). Triangular shaped silver nanocluster arrays with order on the approximately 100 mum range were prepared using nanosphere lithography. Direct comparisons of R6G surface-enhanced Raman spectroscopy (SERS) signals between ordered nanocluster regions and amorphous Ag re...