Evidence for nodes in the superconductin
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M. Nishiyama; T. Kato; H. Sugawara; D. Kikuchi; H. Sato; H. Harima; G.-Q. Zheng
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Article
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2006
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Elsevier Science
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English
β 119 KB
We report NQR measurements in the filled-skutterudite compound superconductors PrΓ°Os 1Γx Ru x Γ 4 Sb 12 Γ°x ΒΌ 0:1; 0:2Γ. Upon replacing Os with Ru, the spin-lattice relaxation rate 1=T 1 becomes proportional to temperature (T) at low temperatures far below T c , and the magnitude of Γ°1=T 1 TΓ lowΓT i