Condensed concepts

A central concept of quantum-many body theory is that of coherent quasi-particles. Their key property is a well-defined relationship between...

At the Journal Club for Condensed Matter Chandra Varma has a helpful commentary on recent experimental papers reporting evidence that the ...

Topological insulators (TIs) are certainly a hot topic. However, there are two things that might make one nervous about all the excitement. ...

In Seattle, I had a really interesting and helpful discussion with Charlie Campbell about doped rare earth oxides. Cerium oxides have attra...

Here is the current version of the slides for a talk, "Charge redistribution near oxygen vacancies in cerium oxides", that I am gi...

I wrote in a previous post about the importance of listening to referees. I recently got back a referee report for this review on oxygen v...

In contrast, to homogeneous mixed-valence the inhomogeneous mixed-valence case involves a mixture of different integer valence ions which oc...

In compounds which Varma characterized by homogeneous mixed-valence, each ion is assigned (at least by physicists) the same, non-integer, ...

The chemical concept of valence is of great utility. The valence of an atom, M, determines the number of neighbouring atoms with which M ca...

A fundamental scientific question of technological importance concerning oxides of transition metals and rare earths is: When an oxygen atom...

Leone Spiccia (Monash University) gave a really interesting Chemistry seminar today concerning bioinspired manganese clusters for the photo...