Magnetic properties of the ternary carbides of the rare earth and nickel group metals

Kotsanidis, P.A.; Yakinthos, J.K.; Gamari‐Seale, E.

doi:10.1016/0022-5088(89)90096-9

Cited by 48 publications

(22 citation statements)

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“…The results of the refinements are displayed in Table I. Observed lattice parameters are in agreement with the previously reported values [17]. The nearest-neighbor distances are 3.8305Å for Ce-Ce, 3.0671Å for Ce-Ni, and 1.9687Å for Ni-C.…”

Section: A Room-temperature Neutron Diffractionsupporting

confidence: 88%

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μSRand inelastic neutron scattering investigations of the noncentrosymmetric antiferromagnetCeNiC2

et al. 2014

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The magnetic state of the noncentrosymmetric antiferromagnet CeNiC 2 has been studied by magnetic susceptibility, heat capacity, muon spin relaxation (μSR), and inelastic neutron scattering (INS) measurements. CeNiC 2 exhibits three magnetic phase transitions at T N 1 = 19.5 K, T N 2 = 10 K, and T N 3 = 2.5 K. The presence of long-range magnetic order below 20 K is confirmed by the observation of oscillations in the μSR spectra between 10 and 20 K and a sharp increase in the muon depolarization rate. INS studies reveal two well-defined crystal electric field (CEF) excitations around 8 and 30 meV. INS data have been analyzed using a CEF model and the wave functions were evaluated. We also calculated the direction and magnitude of the ground state moment using CEF wave functions and compare the results with that proposed from the neutron diffraction. Our CEF model correctly predicts that the moments order along the b axis (or y axis) and the estimated magnetic moment is 0.687(5)μ B , which is higher than the moment observed from the neutron diffraction (0.25μ B /Ce). We attribute the observed reduced moment due to the Kondo screening effect.A. BHATTACHARYYA et al. PHYSICAL REVIEW B 90, 054405 (2014)

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Section: A Room-temperature Neutron Diffractionsupporting

confidence: 88%

“…Rietveld refinement was carried out using the GSAS software on the basis of an orthorhombic CeNiC 2 -type crystal structure (space group No. 38) [17]. In this structure the Ce/La atom occupies 2a sites, the Ni atom 2b sites, and the C atom 4e sites.…”

Section: A Room-temperature Neutron Diffractionmentioning

confidence: 91%

μSRand inelastic neutron scattering investigations of the noncentrosymmetric antiferromagnetCeNiC2

et al. 2014

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“…GdNiC 2 belongs to the group of ternary RNiC 2 compounds, forming in the orthorhombic CeNiC 2 -type structure with a space group of Amm2 [23][24][25] . In this system, magnetic order originates entirely from the 4f electrons of rare-earth elements, while Ni atoms have been found to carry no magnetic moments 26,27 . For R = Sm, the magnetic ground state is ferromagnetic (FM), while compounds with R = (Gd, Tb and Nd) show antiferromagnetic (AF) character 26,28,29 .…”

Section: Introductionmentioning

confidence: 94%

Field-induced suppression of charge density wave in GdNiC2

et al. 2016

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We report the specific heat, magnetic, magnetotransport and galvanomagnetic properties of polycrystalline GdNiC2. In the intermediate temperature region above TN = 20 K, we observe large negative magnetoresistance due to Zeeman splitting of the electronic bands and partial destruction of a charge density wave ground state. Our magnetoresistance and Hall measurements show that at low temperatures a magnetic field induced transformation from antiferromagnetic order to a metamagnetic phase results in the partial suppression of the CDW.

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“…Instead, LaNiC 2 is an unconventional noncentrosymmetric superconductor with T c = 2.7 K [33][34][35] . Next to the CDW, the members of the RNiC 2 family show a wide range of magnetic orderings originating from the RKKY interaction between local magnetic moments and conduction electrons 36,37 . The ground state of RNiC 2 depends on the rare-earth atom marked in the above formula by R: CeNiC 2 , NdNiC 2 , GdNiC 2 and TbNiC 2 show the antiferromagnetic character 34,[38][39][40][41][42] , SmNiC 2 is a ferromagnet, while the PrNiC 2 compound has been identified as a van Vleck paramagnet 43 .…”

Section: Introductionmentioning

confidence: 99%

Magnetism and charge density waves inRNiC2(R=Ce,Pr,Nd)

et al. 2017

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We have compared the magnetic, transport, galvanomagnetic and specific heat properties of CeNiC2, PrNiC2 and NdNiC2 to study the interplay between charge density waves 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.

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Magnetic properties of the ternary carbides of the rare earth and nickel group metals

Cited by 48 publications

References 1 publication

μSRand inelastic neutron scattering investigations of the noncentrosymmetric antiferromagnetCeNiC2

μSRand inelastic neutron scattering investigations of the noncentrosymmetric antiferromagnetCeNiC2

Field-induced suppression of charge density wave in GdNiC2

Magnetism and charge density waves inRNiC2(R=Ce,Pr,Nd)

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