Magnetic Instabilities in Non-Fermi Liquid Ce₃Pd₄Si₄ Driven by Magnetic Dilution

Abstract:

Materials which are close to a quantum critical point are rather prone to magnetic instabilities; even small modifications of relevant interaction mechanisms can be responsible for a magnetic phase transition to occur at finite temperatures. In this work it is demonstrated that actually a substitution of Ce by non-magnetic La in Ce₃Pd₄Si₄ drives a magnetic instability, with ordering temperatures as high as 10 K. To trace the evolution of magnetism and the onset of long range magnetic order in Ce_3-xLa_xPd₄Si₄, various bulk property measurements were carried out.

• Periodical: Solid State Phenomena (Volume 257)
• Pages: 195-198
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.257.195
• Online since: October 2016
• Authors: Khan Sirak, Nikolas Robisch, Leonid Salamakha, Herwig Michor, Ernst Bauer*
• Keywords: Ce₃Pd₄Si₄, Magnetic Instability, Non-Fermi Liquid, Quantum Critical Point

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