Structure and phonon anomaly in La1.85Sr0.15CuO4

Toshio Arakawa; Masatoshi Arai; Tatsuo Nishijima; Masaki Fujita; Yoichi Murakami; Hajime Kawada; Kazuyoshi Yamada; Chul Ho Lee; Yasuo Endoh

doi:10.1007/BF02562734

Structure and phonon anomaly in La_1.85Sr_0.15CuO₄

Toshio Arakawa, Masatoshi Arai, Tatsuo Nishijima, Masaki Fujita, Yoichi Murakami, Hajime Kawada, Kazuyoshi Yamada, Chul Ho Lee, Yasuo Endoh

Research output: Contribution to journal › Article

Abstract

We performed X-ray diffraction and neutron scattering on a single crystal La_l.85Sr_0.15CuO₄. We found that the lattice anomaly is caused by the optical tilt phonon associated with the expansion of the c-lattice constartt below Tc. We also found that the (100) peak starts to develop below the HTT-LTO structural phase transition temperature. These results suggest that there is a strong relation between the superconductivity and the structural instability.

Original language	English
Pages (from-to)	1239-1240
Number of pages	2
Journal	Czechoslovak Journal of Physics
Volume	46
Issue number	SUPPL. 3
DOIs	https://doi.org/10.1007/BF02562734
Publication status	Published - 1996 Dec 1
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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Arakawa, T., Arai, M., Nishijima, T., Fujita, M., Murakami, Y., Kawada, H., Yamada, K., Lee, C. H., & Endoh, Y. (1996). Structure and phonon anomaly in La_1.85Sr_0.15CuO₄. Czechoslovak Journal of Physics, 46(SUPPL. 3), 1239-1240. https://doi.org/10.1007/BF02562734

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abstract = "We performed X-ray diffraction and neutron scattering on a single crystal Lal.85Sr0.15CuO4. We found that the lattice anomaly is caused by the optical tilt phonon associated with the expansion of the c-lattice constartt below Tc. We also found that the (100) peak starts to develop below the HTT-LTO structural phase transition temperature. These results suggest that there is a strong relation between the superconductivity and the structural instability.",

author = "Toshio Arakawa and Masatoshi Arai and Tatsuo Nishijima and Masaki Fujita and Yoichi Murakami and Hajime Kawada and Kazuyoshi Yamada and Lee, {Chul Ho} and Yasuo Endoh",

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TY - JOUR

T1 - Structure and phonon anomaly in La1.85Sr0.15CuO4

AU - Arakawa, Toshio

AU - Arai, Masatoshi

AU - Nishijima, Tatsuo

AU - Fujita, Masaki

AU - Murakami, Yoichi

AU - Kawada, Hajime

AU - Yamada, Kazuyoshi

AU - Lee, Chul Ho

AU - Endoh, Yasuo

PY - 1996/12/1

Y1 - 1996/12/1

N2 - We performed X-ray diffraction and neutron scattering on a single crystal Lal.85Sr0.15CuO4. We found that the lattice anomaly is caused by the optical tilt phonon associated with the expansion of the c-lattice constartt below Tc. We also found that the (100) peak starts to develop below the HTT-LTO structural phase transition temperature. These results suggest that there is a strong relation between the superconductivity and the structural instability.

AB - We performed X-ray diffraction and neutron scattering on a single crystal Lal.85Sr0.15CuO4. We found that the lattice anomaly is caused by the optical tilt phonon associated with the expansion of the c-lattice constartt below Tc. We also found that the (100) peak starts to develop below the HTT-LTO structural phase transition temperature. These results suggest that there is a strong relation between the superconductivity and the structural instability.

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