Condensed concepts

 I just finished preparing my undergraduate lecture on the Debye model for solids. Here are my slides . The course is a third-year course on...

 An example of emergent entities in condensed matter physics are quasiparticles. The concept can be described with the following analogue. W...

Previously, I discussed how spin-crossover is a misnomer for organometallic compounds and proposed that an effective Hamiltonian to describe...

Electronic systems with large amounts of static disorder can exhibit distinct properties, including localisation of electronic states and su...

 One of the most important ideas in condensed matter physics is that different states of matter are associated with different symmetries. Th...

 Emergence in condensed matter physics may provide some valuable insights into the elusive search for a quantum theory of gravity. There was...

My colleagues and I just put a preprint on the arXiv. I am particularly proud of it.  As always, comments would be appreciated. Equivalence ...

This is a basic question that I have been puzzling about. I welcome solutions. Consider a diatomic molecule containing atoms with mass m1 ...

In my view, the central question that Condensed Matter Physics (CMP) seeks to answer is: How do the properties of a distinct phase in a ma...

Most of my posts on spin-crossover materials have been concerned with organometallic compounds. However, this phenomena can also occur in in...

In any crystal the elementary excitations of the lattice are phonons. The dispersion relation for these quasi-particles relates their energy...

Today we just take it for granted that crystals are composed of periodic arrays of interacting atoms. However, that was only established def...

There is a very nice paper Complete Set of Elastic Moduli of a Spin-Crossover Solid: Spin-State Dependence and Mechanical Actuation  Mirko...