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research article

CePd2Al2Ga Kondo-lattice under high pressure

Larrea J., J.  
•
Eichler, A.
•
Fontes, M. B.
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2007
Solid State Communications

We report electrical resistance measurements under hydrostatic (up to 0.9 GPa) and quasi-hydrostatic pressure (beyond 1 GPa) in the ferromagnetic (FM) CePd2Al2Ga Kondo-lattice compound. From the analysis of the electrical resistance data we obtained the magnetic ordering temperatures, the values of the gap of magnons, and a coefficient related to the spin-wave stiffness. From the pressure dependence of these quantities, we conclude that the ambient pressure FM ordering appears to break down around 0.4 GPa changing to another magnetically ordered phase-presumably anti ferromagnetic (AF) - before the expected transition into the paramagnetic state takes place at higher pressures. (c) 2007 Elsevier Ltd. All rights reserved.

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Type
research article
DOI
10.1016/j.ssc.2007.09.008
Web of Science ID

WOS:000251694900017

Author(s)
Larrea J., J.  
Eichler, A.
Fontes, M. B.
Baggio-Saitovitch, E. M.
Continentino, M. A.
Date Issued

2007

Publisher

Elsevier

Published in
Solid State Communications
Volume

144

Start page

488

End page

493

Subjects

heavy fermions

•

magnons

•

electrical resistance under pressure

•

Cepd2Ga3

•

Behavior

•

Electron

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LQM  
Available on Infoscience
July 4, 2012
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/83396
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