Superconductivity in Hexagonal Zr6CoAl2-Type Zr6RuBi2 and Zr6FeBi2

Fuente: arXiv
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Auteurs principaux: Yuchi, Kosuke, Nishio-Hamane, Daisuke, Kojima, Keita, Moriyama, Kodai, Okuma, Ryutaro, Okamoto, Yoshihiko
Format: Preprint
Publié: 2024
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author Yuchi, Kosuke
Nishio-Hamane, Daisuke
Kojima, Keita
Moriyama, Kodai
Okuma, Ryutaro
Okamoto, Yoshihiko
author_facet Yuchi, Kosuke
Nishio-Hamane, Daisuke
Kojima, Keita
Moriyama, Kodai
Okuma, Ryutaro
Okamoto, Yoshihiko
contents We report the synthesis and electronic properties of polycrystalline samples of Zr6MBi2 (M = Ru and Fe) crystallizing in the hexagonal Zr6CoAl2-type structure. Based on their electrical resistivity, magnetization, and heat capacity data, Zr6RuBi2 and Zr6FeBi2 are found to exhibit bulk superconductivity below Tc = 4.9 and 1.4 K, respectively. Although Zr6RuBi2 is most likely a conventional superconductor, the considerably higher Tc for M = Ru than that for M = Fe differs from the trend in Tc for Zr6CoAl2-type superconductors reported thus far. The superconductivity of an amorphous solid-solution phase, which may hinder elucidation of the superconducting properties of Zr6MBi2, is also discussed.
format Preprint
id arxiv_https___arxiv_org_abs_2410_16684
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Superconductivity in Hexagonal Zr6CoAl2-Type Zr6RuBi2 and Zr6FeBi2
Yuchi, Kosuke
Nishio-Hamane, Daisuke
Kojima, Keita
Moriyama, Kodai
Okuma, Ryutaro
Okamoto, Yoshihiko
Superconductivity
We report the synthesis and electronic properties of polycrystalline samples of Zr6MBi2 (M = Ru and Fe) crystallizing in the hexagonal Zr6CoAl2-type structure. Based on their electrical resistivity, magnetization, and heat capacity data, Zr6RuBi2 and Zr6FeBi2 are found to exhibit bulk superconductivity below Tc = 4.9 and 1.4 K, respectively. Although Zr6RuBi2 is most likely a conventional superconductor, the considerably higher Tc for M = Ru than that for M = Fe differs from the trend in Tc for Zr6CoAl2-type superconductors reported thus far. The superconductivity of an amorphous solid-solution phase, which may hinder elucidation of the superconducting properties of Zr6MBi2, is also discussed.
title Superconductivity in Hexagonal Zr6CoAl2-Type Zr6RuBi2 and Zr6FeBi2
topic Superconductivity
url https://arxiv.org/abs/2410.16684