含 3d 过渡金属的三元碲化锆 Zr6MTe2 的超导性

IF 1.5 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY Journal of the Physical Society of Japan Pub Date : 2024-01-25 DOI:10.7566/jpsj.93.023705

Haruka Matsumoto, Youichi Yamakawa, Ryutaro Okuma, Daisuke Nishio-Hamane, Yoshihiko Okamoto

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引用次数: 0

摘要

我们报告了 Zr6MTe2（M = Cr、Mn、Fe 和 Co）的合成、电子特性和电子状态，它与最近发现的超导体家族 Sc6MTe2 具有同构关系。根据在低温下测量到的电阻率和热容量数据，Zr6FeTe2 在低于 Tc = 0.76 K 时显示出体超导性。相反，Zr6+δMn1-δTe2 没有显示出超导性，而是显示出很强的磁性，这很可能阻碍了超导性在这种材料中的形成。通过与 Sc6MTe2 的对比，讨论了 Zr6MTe2 的电子特性和电子态。

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Superconductivity in Ternary Zirconium Telluride Zr6MTe2 with 3d Transition Metals

We report the synthesis, electronic properties, and electronic states of Zr₆MTe₂ (M = Cr, Mn, Fe, and Co), which is isostructural to a recently discovered superconductor family Sc₆MTe₂. Based on the electrical resistivity and heat capacity data measured at low temperatures, Zr₆FeTe₂ is found to show bulk superconductivity below T_c = 0.76 K. Zr₆CoTe₂ also exhibited zero resistivity due to superconductivity below 0.13 K. In contrast, Zr₆₊_δMn₁₋_δTe₂ does not show superconductivity but instead exhibits strong magnetism, which most likely prevents the formation of superconductivity in this material. The electronic properties and electronic states of Zr₆MTe₂ are discussed in comparison with those of Sc₆MTe₂.

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来源期刊

Journal of the Physical Society of Japan 物理-物理：综合

CiteScore

3.40

自引率

17.60%

发文量

325

审稿时长

3 months

期刊介绍： The papers published in JPSJ should treat fundamental and novel problems of physics scientifically and logically, and contribute to the development in the understanding of physics. The concrete objects are listed below. Subjects Covered JPSJ covers all the fields of physics including (but not restricted to) Elementary particles and fields Nuclear physics Atomic and Molecular Physics Fluid Dynamics Plasma physics Physics of Condensed Matter Metal, Superconductor, Semiconductor, Magnetic Materials, Dielectric Materials Physics of Nanoscale Materials Optics and Quantum Electronics Physics of Complex Systems Mathematical Physics Chemical physics Biophysics Geophysics Astrophysics.