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Diffraction line-shapes, Fermi surface nesting, and quantum criticality in antiferromagnetic chromium at high pressure (invited)

Jaramillo, R. and Feng, Yejun and Rosenbaum, T. F. (2010) Diffraction line-shapes, Fermi surface nesting, and quantum criticality in antiferromagnetic chromium at high pressure (invited). Journal of Applied Physics, 107 (9). Art. No. 09E116. ISSN 0021-8979. https://resolver.caltech.edu/CaltechAUTHORS:20140707-163025440

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Abstract

We explore the behavior of the nested bandstructure of chromium as a function of temperature and pressure to the point where magnetism disappears. X-ray diffraction measurements of the charge order parameter suggest that the nesting condition is maintained at high pressure, where the spin density wave ground state is destabilized by a continuous quantum phase transition. By comparing diffraction line-shapes measured throughout the temperature-pressure phase diagram we are able to identify and describe three regimes: thermal near-critical, weak coupling ground state, and quantum critical.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.3364062DOIArticle
http://scitation.aip.org/content/aip/journal/jap/107/9/10.1063/1.3364062PublisherArticle
ORCID:
AuthorORCID
Feng, Yejun0000-0003-3667-056X
Additional Information:© 2010 American Institute of Physics. Presented 21 January 2010; received 27 October 2009; accepted 4 December 2009; published online 27 April 2010. The work at the University of Chicago was supported by the National Science Foundation under Grant No. DMR-0907025. We acknowledge valuable assistance from and discussions with Jonathan Lang, Zahir Islam, and George Srajer, all of the Advanced Photon Source (APS), and Argonne National Laboratory. Use of the APS is supported by the U.S. DOE-BES under Contract No. NEAC02-06CH11357.
Funders:
Funding AgencyGrant Number
NSFDMR-0907025
Department of Energy (DOE)NE-AC02-06CH11357
Issue or Number:9
Record Number:CaltechAUTHORS:20140707-163025440
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140707-163025440
Official Citation:Diffraction line-shapes, Fermi surface nesting, and quantum criticality in antiferromagnetic chromium at high pressure (invited) Jaramillo, R. and Feng, Yejun and Rosenbaum, T. F., Journal of Applied Physics, 107, 09E116 (2010), DOI:http://dx.doi.org/10.1063/1.3364062
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46929
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:08 Jul 2014 17:04
Last Modified:03 Oct 2019 06:47

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