Nuclear resonance study of superconducting La1.82Ca1.18Cu2O6

Susumu Sasaki; Kyouichi Kinoshita; Azusa Matsuda

doi:10.1016/0921-4534(91)91765-V

Nuclear resonance study of superconducting La_1.82Ca_1.18Cu₂O₆

Susumu Sasaki^*, Kyouichi Kinoshita, Azusa Matsuda

^*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

By high oxygen pressure synthesis, La_1.82Ca_1.18Cu₂O₆ was found to be superconducting (T_C(zero) =49K). Using the conventional spin-echo method, a nuclear resonance experiment is conducted on a powder La_1.82Ca_1.18Cu₂O₆ sample. Nuclear Quadrupole Resonance (NQR) spectrum of ¹³⁹La at 4.2K is obtained for the first time. The quadrupolar frequency (v_Q) was estimated to be 5.9±0.1 MHz. The broad spectrum (the full width at half maximum intensity is about 2.5MHz) indicates that the electric field gradient (EFG) is distributed. Spin-lattice relaxation time (T₁) is also discussed.

Original language	English
Pages (from-to)	1083-1084
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	185-189
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4534(91)91765-V
Publication status	Published - 1991 Dec 1
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/0921-4534(91)91765-V

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title = "Nuclear resonance study of superconducting La1.82Ca1.18Cu2O6",

abstract = "By high oxygen pressure synthesis, La1.82Ca1.18Cu2O6 was found to be superconducting (TC(zero) =49K). Using the conventional spin-echo method, a nuclear resonance experiment is conducted on a powder La1.82Ca1.18Cu2O6 sample. Nuclear Quadrupole Resonance (NQR) spectrum of 139La at 4.2K is obtained for the first time. The quadrupolar frequency (vQ) was estimated to be 5.9±0.1 MHz. The broad spectrum (the full width at half maximum intensity is about 2.5MHz) indicates that the electric field gradient (EFG) is distributed. Spin-lattice relaxation time (T1) is also discussed.",

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T1 - Nuclear resonance study of superconducting La1.82Ca1.18Cu2O6

AU - Sasaki, Susumu

AU - Kinoshita, Kyouichi

AU - Matsuda, Azusa

PY - 1991/12/1

Y1 - 1991/12/1

N2 - By high oxygen pressure synthesis, La1.82Ca1.18Cu2O6 was found to be superconducting (TC(zero) =49K). Using the conventional spin-echo method, a nuclear resonance experiment is conducted on a powder La1.82Ca1.18Cu2O6 sample. Nuclear Quadrupole Resonance (NQR) spectrum of 139La at 4.2K is obtained for the first time. The quadrupolar frequency (vQ) was estimated to be 5.9±0.1 MHz. The broad spectrum (the full width at half maximum intensity is about 2.5MHz) indicates that the electric field gradient (EFG) is distributed. Spin-lattice relaxation time (T1) is also discussed.

AB - By high oxygen pressure synthesis, La1.82Ca1.18Cu2O6 was found to be superconducting (TC(zero) =49K). Using the conventional spin-echo method, a nuclear resonance experiment is conducted on a powder La1.82Ca1.18Cu2O6 sample. Nuclear Quadrupole Resonance (NQR) spectrum of 139La at 4.2K is obtained for the first time. The quadrupolar frequency (vQ) was estimated to be 5.9±0.1 MHz. The broad spectrum (the full width at half maximum intensity is about 2.5MHz) indicates that the electric field gradient (EFG) is distributed. Spin-lattice relaxation time (T1) is also discussed.

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Nuclear resonance study of superconducting La_1.82Ca_1.18Cu₂O₆

Abstract

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