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Wiendlocha, Bartłomiej; Toboła, J.; Kaprzyk, S.

doi:10.1103/physrevb.73.134522

Cited by 37 publications

(27 citation statements)

References 64 publications

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“…The observed superconducting trace at 4.5 K found in In 1.3 B 0.7 Sc 3 is encouraging 32 . Theoretically, InBSc 3 is close to weak FM and with an EPC superconducting mechanism 32,33 . One should believe the Ni-based antiperovskite superconductor are not alone and other superconducting antiperovskites may be hidden behind them.…”

Section: Other Potential Superconducting Axm3mentioning

confidence: 82%

“…Since the discovery of SC in MgCNi 3 , researchers have made great efforts to explore other 3d transitionmetal based antipervoskite superconductor [32][33][34][35][36]58 . The observed superconducting trace at 4.5 K found in In 1.3 B 0.7 Sc 3 is encouraging 32 .…”

Section: Other Potential Superconducting Axm3mentioning

confidence: 99%

“…Moreover, superconducting trace has been found in InBSc 3 32 . Some theoretical predictions suggest that SC may exist in some Sc-based and Cr-based antiperovskites [33][34][35][36] . Indeed, due to the high concentration of 3d transition-metal atoms, one can imagine that more interesting properties exist in other antiperovskite AXM 3 .…”

Section: Introductionmentioning

confidence: 99%

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Prediction of Superconductivity in 3d Transition-Metal Based Antiperovskites via Magnetic Phase Diagram

Shao

Tong

et al. 2014

J. Phys. Soc. Jpn.

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We theoretically studied the electronic structure, magnetic properties, and lattice dynamics of a series of 3d transition-metal antiperovskite compounds AXM3 by density function theory. Based on the Stoner criterion, we drew the magnetic phase diagram of carbon-based antiperovskites ACM3. In the phase diagram, compounds with non-magnetic ground state but locating near the ferromagnetic boundary are suggested to yield sizeable electron-phonon coupling and behave superconductivity. To approve this deduction, we systematically calculated the phonon spectra and electron-phonon coupling of a series of Cr-based antiperovskites ACCr3 and ANCr3. The results show that AlCCr3, GaCCr3, and ZnNCr3 could be moderate coupling BCS superconductors. The influence of spin fluctuation on superconductivity are discussed. Furthermore, other potential superconducting AXM3 including some new Co-base and Fe-based antiperovskite superconductors are predicted from the magnetic phase diagram.

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Section: Other Potential Superconducting Axm3mentioning

confidence: 82%

Section: Other Potential Superconducting Axm3mentioning

confidence: 99%

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Prediction of Superconductivity in 3d Transition-Metal Based Antiperovskites via Magnetic Phase Diagram

Shao

Tong

et al. 2014

J. Phys. Soc. Jpn.

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“…Refs. [35][36][37]. For each nonequivalent atom in both cubic, and tetragonal phases, values of η i parameters are presented in Table II, with contributions from each l → l+1 channels.…”

Section: Electron-phonon Interaction and Superconductivitymentioning

confidence: 99%

Effect of the tetragonal distortion on the electronic structure, phonons and superconductivity in the Mo3Sb7 superconductor

Wiendlocha

Sternik

2014

Intermetallics

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Effect of tetragonal distortion on the electronic structure, dynamical properties and superconductivity in Mo3Sb7 is analyzed using first principles electronic structure and phonon calculations. Rigid muffin tin approximation (RMTA) and McMillan formulas are used to calculate the electron-phonon coupling constant λ and superconducting critical temperature. Our results show, that tetragonal distortion has small, but beneficial effect on superconductivity, slightly increasing λ, and the conclusion that the electron-phonon mechanism is responsible for the superconductivity in Mo3Sb7 is supported. The spin-polarized calculations for the ordered (ferromagnetic or antiferromagnetic), as well as disordered (disordered local moment) magnetic states yielded non-magnetic ground state. We point out that due to its experimentally observed magnetic properties the tetragonal Mo3Sb7 might be treated as noncentrosymmetric superconductor, which could have influence for the pairing symmetry. In this context the relativistic band structure is calculated and spin-orbit interaction effects are discussed.

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“…The existence of superconductivity in MgCNi 3 has inspired the intensive research of other non-oxide perovskite-type materials [24][25][26][27] in particular the main attention was paid to nickel-based antiperovskite. Literature reveals that in CdCNi 3 , AlCNi 3 and ZnNNi 3 also exhibit superconductivity [28][29][30][31][32].…”

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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Cited by 37 publications

References 64 publications

Prediction of Superconductivity in 3d Transition-Metal Based Antiperovskites via Magnetic Phase Diagram

Prediction of Superconductivity in 3d Transition-Metal Based Antiperovskites via Magnetic Phase Diagram

Effect of the tetragonal distortion on the electronic structure, phonons and superconductivity in the Mo3Sb7 superconductor

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

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