Abstract
Structural, magnetic, and thermal measurements performed on alloys are reported. Three regions can be recognized: (i) Co rich () with a decreasing long-range antiferromagnetic order which vanishes at finite temperatures, (ii) an intermediate region () showing a broad magnetic anomaly () in specific heat, and (iii) the nonmagnetic region progressively changing from a non-Fermi-liquid-type behavior towards a Fermi-liquid one as Fe concentration increases. The anomaly emerges as an incipient contribution above already at , which indicates that this contribution is related to short-range correlations likely of quasi-two-dimensional type. Both transition and anomaly are practically unaffected by an applied magnetic field up to .
1 More- Received 15 September 2013
- Revised 18 November 2013
DOI:https://doi.org/10.1103/PhysRevB.89.035107
©2014 American Physical Society