Montfrooij, W.
, Heitmann, T.
, Qiu, Y.
, Watson, S.
, Erwin, R.
, Chen, W.
, Zhao, Y.
, Aronson, M.
, Huang, Y.
and de Visser, A.
(2019),
Quantum Critical Behavior in Ce(Fe<sub>0.76</sub>Ru<sub>0.24</sub>)<sub>2</sub>Ge<sub>2</sub>, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925654
(Accessed April 24, 2024)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Quantum Critical Behavior in Ce(Fe0.76Ru0.24)2Ge2
Published
Author(s)
Wouter Montfrooij, Tom Heitmann, , , , , , Meigan Aronson, Yingkai Huang, Anne de Visser
Abstract
Systems with embedded magnetic ions that exhibit a competition between magnetic order and disorder down to absolute zero can display unusual low temperature behaviors of the resistivity, hyperscaling behavior in which the relaxation back to equilibrium when an amount of energy E is given to the system at temperature Τ on depends on the ration Ε/Τ. Ce(Fe0.755Ru0.245)2Ge2 is a system that displays these behaviors. In here, we show that these complex behaviors are rooted in a fragmentation of the magnetic lattice upon cooling caused by Kondo screening, and that the clusters that spontaneously form and order upon cooling. We present our arguments based on the review of two-decades worth of neutron scattering and transport data on this system, augmented with new polarized neutron scattering experiments.Citation
Physical Review B
Volume
99
Issue
19
Pub Type
Journals
Download Paper
Keywords
quantum critical point, kondo screening, neutron scattering
Citation
Created May 6, 2019, Updated October 12, 2021