Neutron scattering studies on URu sub(2)Si sub(2)

This paper aims to review some of the neutron scattering studies performed on URu sub(2)Si sub(2) in Grenoble. This compound has been studied for a quarter of century because of a so-called hidden-order ground state visible by most of the bulk experiments but almost invisible by microscopic probes l...

Full description

Saved in:
Bibliographic Details
Published in:Philosophical magazine (Abingdon, England) England), 2014-11, Vol.94 (32-33), p.3702-3722
Main Authors: Bourdarot, Frederic, Raymond, Stephane, Regnault, Louis-Pierre
Format: Article
Language:English
Subjects:
Antiferromagnetism
Constants
Density
Excitation
Magnetic properties
Neutron scattering
Origins
X-rays
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper aims to review some of the neutron scattering studies performed on URu sub(2)Si sub(2) in Grenoble. This compound has been studied for a quarter of century because of a so-called hidden-order ground state visible by most of the bulk experiments but almost invisible by microscopic probes like neutrons, muons NMR or X-ray. We stress on some aspects that were not addressed previously. Firstly, the comparison of the cell parameters in the 1-2-2 systems seems to point that the magnetic properties of URu sub(2)Si sub(2) are leading by an U super(4+) electronic state. Secondly, a compilation of the different studies of the tiny antiferromagnetic moment indicates that the tiny antiferromagnetic moment has a constant value which may indicate that it is not necessarily extrinsic. We also present the last development on the magnetic form factor measurement in which the magnetic density rotates when entering in the hidden-order state. To end, the thermal dependence of the two most intense magnetic excitations at Q sub(0) = (1,0,0) and Q sub(1) = (0.6,0,0) seems to indicate two different origins or processes for these excitations.
ISSN:1478-6435
1478-6443
DOI:10.1080/14786435.2014.935513