Magnetism on Mg1−xZnxCyNi3

Uehara, M.; Yamazaki, Takahiro; Kôri, Tatsuya; Kashida, Takeshi; Kimishima, Y.; Ohishi, Kazuki

doi:10.1016/j.jpcs.2007.08.040

Cited by 16 publications

(12 citation statements)

References 10 publications

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“…Ni-based anti-perovskite materials are ferromagnets for example (Mg,Zn)C y Ni 3 (T C =150~300 K for y < 0.7) 7) , AlC y Ni 3 (T C =41.5 and 300 K for y=0 and 1) 9,10) , ZnC y Ni 3 (T C =180 and 30 K for y=0 and 0.5) 7) and In 0.95 CNi 3 (T C =577 K) 11) . GaC y Ni 3 (y=0 and 1) 9,12) shows the exchange-enhanced Pauli paramagnetism 13) , indicating the existence of strong ferromagnetic correlation.…”

Section: Manymentioning

confidence: 99%

“…Finally, we would like to point out an issue as follows: ZnNi 3 , ZnC 0.5 Ni 3 and ZnN 0.5 Co 3 are ferromagnets and it is easy to synthesize these samples with good quality 7,21) . Therefore, it can be expected to synthesis Zn(C,N) y (Ni,Co) 3 solid solution.…”

Section: (A) H C1 (T) Is Plotted As a Function Of Temperature The Dmentioning

confidence: 99%

“…Hole doping causes an increase in DOS at E F (D(E F )) assuming the rigid-band picture. Actually the emergence of ferromagnetism has been reported in carbon-deficient (Mg,Zn)C y Ni 3 (y<0.7) 7) . Several analogous materials to MgCNi 3 have been synthesized but only CdCNi 3 showed superconductivity 8) .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

New Antiperovskite-Type Superconductor ZnN_yNi₃

Uehara

Kozawa

et al. 2009

J. Phys. Soc. Jpn.

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We have synthesized a new superconductor ZnN y Ni 3 with T c ~3 K. The crystal structure has the same anti-perovskite-type such as MgCNi 3 and CdCNi 3. As far as we know, this is the third superconducting material in Ni-based anti-perovskite series. For this material, superconducting parameters, lower critical field H c1 (0), upper critical field H c2 (0), coherence length ξ(0), penetration depth λ(0), and Gintzburg -Landau parameter κ(0) have been experimentally determined.

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Section: Manymentioning

confidence: 99%

Section: (A) H C1 (T) Is Plotted As a Function Of Temperature The Dmentioning

confidence: 99%

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New Antiperovskite-Type Superconductor ZnN_yNi₃

Uehara

Kozawa

et al. 2009

J. Phys. Soc. Jpn.

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“…Surprisingly, in this case not the ferromagnetism but the superconductivity near 8 K was experimentally discovered by He et al [10]. Several attempts have been made to investigate the structural, electronic, magnetic, elastic, vibrational, and thermodynamic properties of this novel superconductor [11][12][13][14][15][16][17]. However, the nature of superconductivity in this material is still not clear whether the mechanism for superconductivity is conventional or not [18,19].…”

Section: Introductionmentioning

confidence: 99%

Low-Temperature Thermodynamic Properties of Superconducting Antiperovskite CdCNi $$_3$$ 3

et al. 2016

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We investigate the thermodynamic parameters of the superconducting antiperovskite CdCNi 3 using the Eliashberg approach which is an excellent tool to the exact characterization of the conventional superconductors. In particular, we reproduce the measured superconducting transition temperature (T C = 3.2 K) for a high value of the Coulomb pseudopotential (μ C = 0.22). Then we determine the energy gap, the thermodynamic critical field and the specific heat for the superconducting and normal state. On this basis, we show that the thermodynamic properties of CdCNi 3 differ slightly from the prediction of the Bardeen-Cooper-Schrieffer theory, which means that CdCNi 3 is a medium-coupling superconductor in contrast to related strongcoupling MgCNi 3 .

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“…Band structure calculations point out the presence of a large peak in the density of states, located just below the Fermi surface, leading to a predictions of a quantum phase transition to a ferromagnetic ground state with hole doping [2,3]. Actually, the emergence of ferromagnetism has been observed in carbon-deficient (Mg, Zn)C y Ni 3 (y < 0.7) [4]. It is considered that the magnetic interactions in superconducting systems have often manifested themselves in anisotropic pairing, i.e., high-T c cuprates and heavy fermion systems.…”

Section: Introductionmentioning

confidence: 99%