63Cu NMR study on spin ladder compounds Sr14-xCaxCu24O41 (x = 9, 11.5)

K. Magishi; S. Matsumoto; K. Ishida; Y. Kitaoka; K. Asayama; M. Uehara; T. Nagata; J. Akimitsu

doi:10.1016/S0921-4534(97)00671-0

⁶³Cu NMR study on spin ladder compounds Sr_14-xCa_xCu₂₄O₄₁ (x = 9, 11.5)

K. Magishi, S. Matsumoto, K. Ishida, Y. Kitaoka, K. Asayama, M. Uehara, T. Nagata, J. Akimitsu

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

4 Citations (Scopus)

Abstract

⁶³Cu NMR measurements for the ladder sites on single crystals Sr_14-xCa_xCu₂₄O₄₁ (x = 9, 11.5), which consist of simple chains and 2-leg ladders of Cu²⁺ ions, have been carried out at f = 125.1 MHz for H ∥ b-axis. From respective measurements of the Knight shift and the nuclear spin-lattice relaxation rate, 1/T₁, the spin gap in the ladder has been found to be as large as Δ = 250 K (260 K) and 340 K (360 K) for x = 11.5 (x = 9), respectively.

Original language	English
Pages (from-to)	1115-1116
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	282-287
Issue number	PART 2
DOIs	https://doi.org/10.1016/S0921-4534(97)00671-0
Publication status	Published - Aug 1997
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/S0921-4534(97)00671-0

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title = "63Cu NMR study on spin ladder compounds Sr14-xCaxCu24O41 (x = 9, 11.5)",

abstract = "63Cu NMR measurements for the ladder sites on single crystals Sr14-xCaxCu24O41 (x = 9, 11.5), which consist of simple chains and 2-leg ladders of Cu2+ ions, have been carried out at f = 125.1 MHz for H ∥ b-axis. From respective measurements of the Knight shift and the nuclear spin-lattice relaxation rate, 1/T1, the spin gap in the ladder has been found to be as large as Δ = 250 K (260 K) and 340 K (360 K) for x = 11.5 (x = 9), respectively.",

author = "K. Magishi and S. Matsumoto and K. Ishida and Y. Kitaoka and K. Asayama and M. Uehara and T. Nagata and J. Akimitsu",

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T1 - 63Cu NMR study on spin ladder compounds Sr14-xCaxCu24O41 (x = 9, 11.5)

AU - Magishi, K.

AU - Matsumoto, S.

AU - Ishida, K.

AU - Kitaoka, Y.

AU - Asayama, K.

AU - Uehara, M.

AU - Nagata, T.

AU - Akimitsu, J.

PY - 1997/8

Y1 - 1997/8

N2 - 63Cu NMR measurements for the ladder sites on single crystals Sr14-xCaxCu24O41 (x = 9, 11.5), which consist of simple chains and 2-leg ladders of Cu2+ ions, have been carried out at f = 125.1 MHz for H ∥ b-axis. From respective measurements of the Knight shift and the nuclear spin-lattice relaxation rate, 1/T1, the spin gap in the ladder has been found to be as large as Δ = 250 K (260 K) and 340 K (360 K) for x = 11.5 (x = 9), respectively.

AB - 63Cu NMR measurements for the ladder sites on single crystals Sr14-xCaxCu24O41 (x = 9, 11.5), which consist of simple chains and 2-leg ladders of Cu2+ ions, have been carried out at f = 125.1 MHz for H ∥ b-axis. From respective measurements of the Knight shift and the nuclear spin-lattice relaxation rate, 1/T1, the spin gap in the ladder has been found to be as large as Δ = 250 K (260 K) and 340 K (360 K) for x = 11.5 (x = 9), respectively.

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⁶³Cu NMR study on spin ladder compounds Sr_14-xCa_xCu₂₄O₄₁ (x = 9, 11.5)

Abstract

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