Magnetic properties and magnetocaloric effect in SmNiC2 compound

Dong, Qin; Wang, L.C; Chen, J.; Zhang, X.Q.; Sun, J. R.; Shen, Baogen

doi:10.1016/j.ssc.2013.11.012

Cited by 3 publications

(1 citation statement)

References 41 publications

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“…In recent times, rare‐earth intermetallic compounds RNiC

_{2}

(R = La, Sm, Nd, Gd, and Tb) have been demonstrated to show various ground states of CDWs, magnetism, and superconductivity . Among these, SmNiC

_{2}

has attracted special interest because of competition or coexistence between the CDW state and the ferromagnetism . The electrical resistivity of SmNiC

_{2}

shows a metal–insulator transition due to CDW formation at

T_{CDW}

= 148 K. Below

T_{CDW}

, the X‐ray diffraction pattern reveals satellite peaks corresponding to the periodic lattice distortion due to CDW formation ().…”

Section: Introductionmentioning

confidence: 99%

Evidence of charge‐density waves in the optical properties of SmNiC

Ahmad

Min

Kimura

et al. 2015

Physica Status Solidi (b)

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[94pt]In this study, we have measured the optical reflectivity spectra of low‐dimensional SmNiC2 (TC=18.5 K and TCDW=151 K) in the terahertz to ultraviolet frequency range at various temperatures. The optical conductivity spectra were transformed from the reflectivity data using the Kramers–Kronig relation. The optical conductivity of the normal state is well described by the Drude–Lorentz model assuming two bands. In nonmagnetic states below TCDW, two clean gaps opening on top of the Drude response are observed at around 500 and 750 cm−1. In the ferromagnetic state, the higher‐side gap opening remains at the same frequency but the lower‐side gap opening disappears, instead an additional absorption due to magnon gap formation is observed at around 70 cm−1.

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“…In recent times, rare‐earth intermetallic compounds RNiC

_{2}

(R = La, Sm, Nd, Gd, and Tb) have been demonstrated to show various ground states of CDWs, magnetism, and superconductivity . Among these, SmNiC

_{2}

has attracted special interest because of competition or coexistence between the CDW state and the ferromagnetism . The electrical resistivity of SmNiC