Superconductivity in Ternary Zirconium Telluride Zr6RuTe2
Kosuke Yuchi, Haruka Matsumoto, Daisuke Nishio-Hamane, Kodai Moriyama, Keita Kojima, Ryutaro Okuma, Jun-ichi Yamaura, and Yoshihiko Okamoto
TL;DR
This paper reports the discovery of bulk superconductivity in Zr6RuTe2 below 1.1 K, with evidence from resistivity, magnetization, and heat capacity measurements, highlighting Ru's role in enhancing superconductivity.
Contribution
It is the first to demonstrate bulk superconductivity in Zr6RuTe2 and shows Ru's favorable effect compared to other transition metals in similar compounds.
Findings
Superconductivity observed below 1.1 K in Zr6RuTe2
Resistivity, magnetization, and heat capacity confirm bulk superconductivity
Tc is higher than in related Zr6MTe2 compounds with other metals
Abstract
Zr6CoAl2-type Zr6RuTe2 is found to show bulk superconductivity below the superconducting transition temperature Tc = 1.1 K, according to the electrical resistivity, magnetization, and heat capacity measurements using synthesized polycrystalline samples. This Tc exceeds that of Zr6MTe2 compounds in which M is other transition metals, indicating that M = Ru is favorable for superconductivity in Zr6CoAl2-type Zr6MX2.
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