Superconductivity in the hexagonal-layered nanolaminates Ti2InC compound

Bortolozo, Ausdinir D.; Sant’Anna, O.H.; Santos, C. A. M. dos; Machado, A. J. S.

doi:10.1016/j.ssc.2007.09.028

Cited by 58 publications

(26 citation statements)

References 10 publications

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“…To date, among more than 70 synthesized MAX phases [3], bulk superconductivity was discovered for seven systems: Mo 2 GaC [4], Nb 2 SC [5], Nb 2 SnC [6], Nb 2 AsC [7], Ti 2 InC [8], Nb 2 InC [9], and Ti 2 InN [10]. Very recently, a superconducting transition at T C ~ 9.5 K was reported for the eighth MAX phase -Ti 2 GeC [1].…”

Section: Introductionmentioning

confidence: 99%

New MAX Phase Superconductor Ti<sub>2</sub>GeC: A First-principles Study

et al. 2013

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This is the first DFT-based first-principles prediction of the detailed optical and thermodynamic properties, including Vickers hardness and Fermi surface of 211 MAX phase Ti 2 GeC for which superconductivity (T c~ 9.5 K) was reported very recently. The calculated structural properties are in excellent agreement with experiments. Our results on elastic parameters indicate a slight elastic anisotropy and brittleness of the compound. The chemical bonding is seen to be a combination of covalent, ionic and metallic nature. The rather stronger covalent bonding is responsible for its high Vickers hardness of 11.6 GPa. The investigated Fermi surface is formed mainly by the low-dispersive bands, which should be responsible for the presence of superconductivity in Ti 2 GeC. All the optical properties are evaluated and analyzed for two different polarization directions of incident photon. The temperature and pressure dependence of primitive cell volume, thermal expansion coefficient, specific heats, bulk modulus, and Debye temperature of Ti 2 GeC are derived from the quasi-harmonic Debye model with phononic effect and the various implications are discussed in details.

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Section: Introductionmentioning

confidence: 99%

New MAX Phase Superconductor Ti<sub>2</sub>GeC: A First-principles Study

et al. 2013

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“…The characteristic of band structure could probably affect the transport properties. Bortolozo et al showed that the Ti 2 InC superconducts at 3.1 K [11]. Motivated by this change in electronic structure, we decided to investigate the influence of the substitution of C for N on the M 2 AX compound.…”

Section: Introductionmentioning

confidence: 99%

Superconductivity at 7.3 K in Ti2InN

Bortolozo

Serrano

Serquis

et al. 2010

Solid State Communications

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a b s t r a c tIn this work the Ti 2 InN phase is investigated by X-ray diffraction, magnetic and resistivity measurements. X-ray powder patterns suggest that all peaks can be indexed with the hexagonal phase of Cr 2 AlC prototype. Electrical resistance as a function of temperature reveals superconductivity below 7.3 K. M(H) hysteresis loops show typical type-II superconductivity. Using R(H) versus T measurements we estimated

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“…Besides, * corresponding author; e-mail: mabrekmoued22@gmail.com the MAX phases are used as trainers for health care products, as well as hot pressing tools and resistance heating elements [10,11]. Bortolozo et al [12] computed the magnetic measurements and the resistivity of Ti 2 InC by X-ray diffraction. Scabarozi et al [13] report on correlations of specific measurements of heat and transport in the MAX phase family.…”

Section: Introductionmentioning

confidence: 99%

A Novel Theoretical Study of Elastic and Electronic Properties of M₂CdC (M = Zr, Hf, and Ta) MAX Phases

et al. 2018

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In this study, we have investigated the structural, electronic, and elastic properties of the M2CdC (M = Ta, Zr, and Hf) MAX phases, using the first-principle methods based on the density functional theory. The calculated formation energies revealed that these compounds are thermodynamically stable in the hexagonal MAX phase. The stability is confirmed by the elastic constants and the conditions of mechanical stability criterion. Also, we have determined the bulk and shear modules of the Young modulus and the Poisson coefficient. The band structures indicate that the three materials are electrically conductive. The chemical bond in M2CdC is covalent-ionic in nature with the presence of metallic character. For the density of states the hybridization peak between M d and C p occurs in the lower energy range. We have found that there is no gap for these materials due to the existence of a maximum peak of DOS around Fermi level.

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Superconductivity in the hexagonal-layered nanolaminates Ti2InC compound

Cited by 58 publications

References 10 publications

New MAX Phase Superconductor Ti<sub>2</sub>GeC: A First-principles Study

New MAX Phase Superconductor Ti<sub>2</sub>GeC: A First-principles Study

Superconductivity at 7.3 K in Ti2InN

A Novel Theoretical Study of Elastic and Electronic Properties of M₂CdC (M = Zr, Hf, and Ta) MAX Phases

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Superconductivity in the hexagonal-layered nanolaminates Ti2InC compound

Cited by 58 publications

References 10 publications

New MAX Phase Superconductor Ti<sub>2</sub>GeC: A First-principles Study

New MAX Phase Superconductor Ti<sub>2</sub>GeC: A First-principles Study

Superconductivity at 7.3 K in Ti2InN

A Novel Theoretical Study of Elastic and Electronic Properties of M2CdC (M = Zr, Hf, and Ta) MAX Phases

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A Novel Theoretical Study of Elastic and Electronic Properties of M₂CdC (M = Zr, Hf, and Ta) MAX Phases