Complex magnetic states of the heavy fermion compound CeGe

Haines, C. R. S. and Marcano, N. and Smith, R. P. and Aviani, I. and Espeso, J. I. and Gómez Sal, J. C. and Saxena, S. S. (2012) Complex magnetic states of the heavy fermion compound CeGe. Low Temperature Physics, 38. pp. 651-656. DOI https://doi.org/10.1063/1.4734012

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Abstract

The intermetallic compound CeGe exhibits unusual magnetic behavior owing to the interplay between Kondo and antiferromagnetic coupling. This system is interesting because the Kondo temperature is close to the Néel temperature, so there is a close competition between the low-temperature interactions, which can be tuned by varying external parameters such as pressure and applied magnetic field. Interestingly, magnetization measurements up to 12 kbar reveal that the Néel temperature is not affected by pressure. Measurements of the electrical resistivity show, however, that the sharp upturn below TN is sensitive to pressures up to 15 kbar. This suggests that pressure may change the complex antiferromagnetic spin structure. The validity of an explanation based on the magnetic superzones seen in the rare earths is discussed here. © 2012 American Institute of Physics.

Item Type: Article
Uncontrolled Keywords: NILAREP
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Low Temperature Physics
Volume: 38
Page Range: pp. 651-656
Identification Number: https://doi.org/10.1063/1.4734012
Depositing User: Sarah Humbert
Date Deposited: 07 Jan 2019 21:40
Last Modified: 07 Jan 2019 21:40
URI: http://eprints.esc.cam.ac.uk/id/eprint/4383

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