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Wellington, New Zealand

The MacDiarmid Institute for Advanced Materials and Nanotechnology is a New Zealand research organisation specialising in materials science and nanotechnology. It is based at Victoria University of Wellington, although it also draws on other universities and on two Crown Research Institutes.The Institute is named after Alan MacDiarmid, a New Zealander who won the Nobel Prize in Chemistry in 2000. It was established by the government as one of eight Centres of Research Excellence throughout the country.The Institute divides its work into six "themes":Nanofabrication and DevicesElectronic and Optical Materials Molecular Materials Soft Materials Hybrid Materials The Intersection of Nanoscience and Biology Wikipedia.

Lekner J.,MacDiarmid Institute for Advanced Materials and Nanotechnology
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences | Year: 2012

We prove that two charged conducting spheres will almost always attract each other at close approach, even when they have like charges. The one exception is when the two spheres have the same charge ratio that they would obtain by being brought into contact. In this case, they repel, and we derive an analytical expression for the force at contact, for any size ratio, generalizing a force formula for equal spheres obtained by Kelvin in 1853. We also give the electrostatic energy of two arbitrarily charged spheres, and its analytical forms at large and small separations. Expressions are derived for the surface charge densities of the two spheres. Attraction occurs between two positively charged spheres because of mutual polarization: one of the spheres obtains a negatively charged region (neighbouring the other sphere). © 2012 The Royal Society. Source

Kaiser A.B.,MacDiarmid Institute for Advanced Materials and Nanotechnology | Skakalova V.,Max Planck Institute for Solid State Research
Chemical Society Reviews | Year: 2011

In the years since the discovery of organic polymers that exhibited electrical conductivities comparable to some metals, other novel carbon-based conductors have been developed, including carbon nanotubes and graphene (monolayers of carbon atoms). In this critical review, we discuss the common features and the differences in the conduction mechanisms observed in these carbon-based materials, which range from near ballistic and conventional metallic conduction to fluctuation-assisted tunnelling, variable-range hopping and more exotic mechanisms. For each category of material, we discuss the dependence of conduction on the morphology of the sample. The presence of heterogeneous disorder is often particularly important in determining the overall behaviour, and can lead to surprisingly similar conduction behaviour in polymers, carbon nanotube networks and chemically-derived graphene (122 references). © 2011 The Royal Society of Chemistry. Source

Brooker S.,MacDiarmid Institute for Advanced Materials and Nanotechnology
Chemical Society Reviews | Year: 2015

The observation of spin crossover with thermal hysteresis loops of more than a few Kelvin remains relatively uncommon and unpredictable, so is a relatively underdeveloped, but important, area of spin crossover, particularly for memory applications. Lessons learnt regarding the origins, and the practicalities of the proper study and reporting, of thermal hysteresis loops are considered and explained, from a synthetic chemists perspective, after a general introduction to the field of spin crossover. This journal is © The Royal Society of Chemistry. Source

Blaikie R.J.,MacDiarmid Institute for Advanced Materials and Nanotechnology
New Journal of Physics | Year: 2010

The prediction of 'perfect' imaging without negative refraction for Maxwell's fish-eye lens (Leonhardt U 2009 New J. Phys. 11 093040) is a consequence of imposing an active localized 'drain' at the image point rather than being a general property of the lens. This work then becomes analogous to other work using time-reversal symmetry and/or structured antennae to achieve super-resolution, which can be applied to many types of imaging system beyond the fish-eye lens. © IOP Publishing Ltd and Deutsche Physikalische Gesellschft. Source

Feltham H.L.C.,MacDiarmid Institute for Advanced Materials and Nanotechnology | Brooker S.,MacDiarmid Institute for Advanced Materials and Nanotechnology
Coordination Chemistry Reviews | Year: 2014

A very basic tutorial-style introduction to Single-Molecule Magnetism, intended for a general chemistry audience, is provided. This is followed by a review of the synthesis, structures and magnetic properties of Single-Molecule Magnets (SMMs) that contain just one lanthanide ion and are either (a) monometallic or (b) di- or polymetallic as they also contain one or more transition metal ions (so are heterometallic). We use the term ". monolanthanide" to refer to both. This review covers papers published before July 2013. © 2014 Elsevier B.V. Source

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