Nuclear Spin-Lattice Relaxation of 139La in Superconducting (La1-xSrx)2CuO4

Tatsuo Kobayashi; Shinji Wada

doi:10.1143/JPSJ.58.2662

Nuclear Spin-Lattice Relaxation of ¹³⁹La in Superconducting (La_1-xSr_x)₂CuO₄

Tatsuo Kobayashi, Shinji Wada

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Nuclear spin-lattice relaxation times T₁ of ¹³⁹La in high-T_c superconductor (La_1-x Sr_x)₂CuO₄ (x=0.075,0.10) have been measured in zero field. T^-11 in the superconducting state decreases rapidly, indicating a superconducting energy gap formation, but no signs of T^-11 enhancement are observed just below T_c. T^-11 in the normal state shows slightly stronger temperature dependence than that expected from the Korringa relation (T₁T= const.) observed in a highly Sr-doped, nonsuperconducting compound with x=0.15.

Original language	English
Pages (from-to)	2662-2664
Number of pages	3
Journal	journal of the physical society of japan
Volume	58
Issue number	8
DOIs	https://doi.org/10.1143/JPSJ.58.2662
Publication status	Published - 1989
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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abstract = "Nuclear spin-lattice relaxation times T1 of 139La in high-Tc superconductor (La1-x Srx)2CuO4 (x=0.075,0.10) have been measured in zero field. T-11 in the superconducting state decreases rapidly, indicating a superconducting energy gap formation, but no signs of T-11 enhancement are observed just below Tc. T-11 in the normal state shows slightly stronger temperature dependence than that expected from the Korringa relation (T1T= const.) observed in a highly Sr-doped, nonsuperconducting compound with x=0.15.",

author = "Tatsuo Kobayashi and Shinji Wada",

year = "1989",

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language = "English",

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pages = "2662--2664",

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T1 - Nuclear Spin-Lattice Relaxation of 139La in Superconducting (La1-xSrx)2CuO4

AU - Kobayashi, Tatsuo

AU - Wada, Shinji

PY - 1989

Y1 - 1989

N2 - Nuclear spin-lattice relaxation times T1 of 139La in high-Tc superconductor (La1-x Srx)2CuO4 (x=0.075,0.10) have been measured in zero field. T-11 in the superconducting state decreases rapidly, indicating a superconducting energy gap formation, but no signs of T-11 enhancement are observed just below Tc. T-11 in the normal state shows slightly stronger temperature dependence than that expected from the Korringa relation (T1T= const.) observed in a highly Sr-doped, nonsuperconducting compound with x=0.15.

AB - Nuclear spin-lattice relaxation times T1 of 139La in high-Tc superconductor (La1-x Srx)2CuO4 (x=0.075,0.10) have been measured in zero field. T-11 in the superconducting state decreases rapidly, indicating a superconducting energy gap formation, but no signs of T-11 enhancement are observed just below Tc. T-11 in the normal state shows slightly stronger temperature dependence than that expected from the Korringa relation (T1T= const.) observed in a highly Sr-doped, nonsuperconducting compound with x=0.15.

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