Magnetism and charge density waves in RNiC2(R=Ce,Pr,Nd)

We have compared the magnetic, transport, galvanomagnetic, and specific-heat properties of CeNiC2, PrNiC2, and NdNiC2 to study the interplay between charge density waves (CDW) and magnetism in these compounds. The negative magnetoresistance in NdNiC2 is discussed in terms of the partial destruction...

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Bibliographic Details
Published in:Physical review. B 2017-06, Vol.95 (23)
Main Authors: Kolincio, Kamil K, Roman, Marta, Winiarski, Michał J, Strychalska-Nowak, Judyta, Klimczuk, Tomasz
Format: Article
Language:English
Subjects:
Charge density waves
Conduction bands
Electromagnetism
Fermi surfaces
Ferromagnetism
Magnetic anomalies
Magnetic properties
Magnetism
Magnetoresistance
Magnetoresistivity
Neodymium
Nesting
Phase transitions
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Summary:We have compared the magnetic, transport, galvanomagnetic, and specific-heat properties of CeNiC2, PrNiC2, and NdNiC2 to study the interplay between charge density waves (CDW) and magnetism in these compounds. The negative magnetoresistance in NdNiC2 is discussed in terms of the partial destruction of charge density waves and an irreversible phase transition stabilized by the field-induced ferromagnetic transformation is reported. For PrNiC2 we demonstrate that the magnetic field initially weakens the CDW state, due to the Zeeman splitting of conduction bands. However, the Fermi surface nesting is enhanced at a temperature related to the magnetic anomaly.
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.95.235156