Condensed concepts

Crystals of large molecules exhibit diverse structures. In other words, the geometric arrangements of the molecules relative to one another ...

In previous posts, I discussed how "spin-crossover" material is a misnomer because many of these materials do not undergo crossov...

In recent posts, I discussed how "spin crossover" is a misnomer for the plethora of organometallic compounds that undergo spin-st...

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

There are hundreds of organometallic compounds that are classified as spin-crossover compounds . As the temperature is varied the average sp...

The comet C/2022 E3 (ZTF) getting a lot of attention , pointed out to me by my friend Alexey. Why is it green? This basic question turns out...

 An important challenge required to understand the physical properties of materials that are chemically and structurally complex is to ascer...

Perfect crystals are elastic. When a stress is applied and then removed the crystal will bounce back to its original shape. However, in real...

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

Since the discovery of the iron-based superconductors, it has become clear that the combination of multiple orbitals and strong correlations...

An important question concerning spin-crossover compounds concerns the origin and the magnitude of the interactions between the individual m...

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

A basic question concerning spin crossover compounds is what are the energy difference and entropy difference between the low spin (LS) and...

Most of the questions are inter-related. Most have been discussed in earlier posts. How do we tune physical properties (e.g. hysteresis wi...

An interesting feature of spin-crossover compounds is that the transition from low-spin to high-spin with increasing temperature is usually...

Two of my UQ colleagues have a nice preprint that brings together many fascinating subjects including strong electron correlations and MOF ...

Update. 14 Jan. 2026. I just learned that the paper discussed in this post was retracted last year. "following concerns raised about th...

What kind of theory paper to I enjoy? Here are some personal tastes - "simple" enough I can understand it - physical insight -...