Dec, 2013
Interplay of Charge-Density Wave and Magnetic Order in Ternary Rare-Earth Nickel Carbides, RNiC2 (R = Pr and Nd)
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
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- Volume
- 82
- Number
- 12
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.7566/JPSJ.82.123701
- Publisher
- PHYSICAL SOC JAPAN
The electrical and structural properties of NdNiC2 and PrNiC2 are examined in single-crystalline samples in order to investigate the interplay of charge-density wave (CDW) and magnetic order in ternary rare-earth nickel carbides, RNiC2, where R is a rare-earth element. PrNiC2 (no magnetic order down to 1.5 K) and NdNiC2 [antiferromagnetic (AF) transition at 17.2 K] show resistance anomalies at 89 and 121 K, respectively, which are revealed to be CDW transitions by observing X-ray satellite reflections. NdNiC2 also shows a gradual decrease in both resistivity and CDW amplitude below the Neel temperature. In the AF phase, the magnetoresistance sharply decreases where a ferromagnetic (FM) order occurs, which is realized above the spin-flop magnetic field. These results clearly suggest that the relationships between CDW and magnetic order in RNiC2 depend on whether the magnetic order is AF or FM.
- Link information
- ID information
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- DOI : 10.7566/JPSJ.82.123701
- ISSN : 0031-9015
- Web of Science ID : WOS:000327350700001