Kavli Affiliate: Brad Ramshaw
| First 5 Authors: Jaron Kent-Dobias, Michael Matty, Brad Ramshaw, ,
| Summary:
We develop a phenomenological mean field theory describing the hidden order
phase in URu$_{text2}$Si$_{text2}$ as a nematic of the $text B_{text{1g}}$
representation staggered along the $c$-axis. Several experimental features are
reproduced by this theory: the topology of the temperature–pressure phase
diagram, the response of the elastic modulus $(C_{11}-C_{12})/2$ above the
transition at ambient pressure, and orthorhombic symmetry breaking in the
high-pressure antiferromagnetic phase. In this scenario, hidden order is
characterized by broken rotational symmetry that is modulated along the
$c$-axis, the primary order of the high-pressure phase is an unmodulated
nematic, and the triple point joining those two phases with the
high-temperature paramagnetic phase is a Lifshitz point.
| Search Query: ArXiv Query: search_query=au:”Brad Ramshaw”&id_list=&start=0&max_results=3