Cold-neutron scattering study of La2-xSrxCuO4

M. Yamada; S. Shamoto; T. Kajitani

doi:10.1016/S0022-3697(99)00157-2

Cold-neutron scattering study of La_2-xSr_xCuO₄

M. Yamada, S. Shamoto, T. Kajitani

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

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Abstract

The generalized phonon density of states (GPDOS) for La_2-xSr_xCuO₄ (x = 0.0, 0.08, 0.12, 0.15 and 0.21) powder samples are determined from inelastic cold-neutron scattering measurements using the TOF-type cold-neutron spectrometer, AGNES, mainly above the tetragonal-to-orthorhombic structural phase transition temperature. The softening of modes at about 12 meV was observed in the GPDOS for La_1.85Sr_0.15CuO₄. This phenomenon is related with the instability of the K₂NiF₄-type tetragonal structure.

Original language	English
Pages (from-to)	1439-1442
Number of pages	4
Journal	Journal of Physics and Chemistry of Solids
Volume	60
Issue number	8
DOIs	https://doi.org/10.1016/S0022-3697(99)00157-2
Publication status	Published - 1999
Event	Proceedings of the 1998 7th ISSP International Symposium Frontiers in Neutron Scattering Research (ISSP7) - Tokyo, Jpn Duration: 1998 Nov 24 → 1998 Nov 27

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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10.1016/S0022-3697(99)00157-2

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@article{b5051c9e7c5f43e7adf26d2eed203627,

title = "Cold-neutron scattering study of La2-xSrxCuO4",

abstract = "The generalized phonon density of states (GPDOS) for La2-xSrxCuO4 (x = 0.0, 0.08, 0.12, 0.15 and 0.21) powder samples are determined from inelastic cold-neutron scattering measurements using the TOF-type cold-neutron spectrometer, AGNES, mainly above the tetragonal-to-orthorhombic structural phase transition temperature. The softening of modes at about 12 meV was observed in the GPDOS for La1.85Sr0.15CuO4. This phenomenon is related with the instability of the K2NiF4-type tetragonal structure.",

author = "M. Yamada and S. Shamoto and T. Kajitani",

note = "Copyright: Copyright 2017 Elsevier B.V., All rights reserved.; Proceedings of the 1998 7th ISSP International Symposium Frontiers in Neutron Scattering Research (ISSP7) ; Conference date: 24-11-1998 Through 27-11-1998",

year = "1999",

doi = "10.1016/S0022-3697(99)00157-2",

language = "English",

volume = "60",

pages = "1439--1442",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier Limited",

number = "8",

}

TY - JOUR

T1 - Cold-neutron scattering study of La2-xSrxCuO4

AU - Yamada, M.

AU - Shamoto, S.

AU - Kajitani, T.

PY - 1999

Y1 - 1999

N2 - The generalized phonon density of states (GPDOS) for La2-xSrxCuO4 (x = 0.0, 0.08, 0.12, 0.15 and 0.21) powder samples are determined from inelastic cold-neutron scattering measurements using the TOF-type cold-neutron spectrometer, AGNES, mainly above the tetragonal-to-orthorhombic structural phase transition temperature. The softening of modes at about 12 meV was observed in the GPDOS for La1.85Sr0.15CuO4. This phenomenon is related with the instability of the K2NiF4-type tetragonal structure.

AB - The generalized phonon density of states (GPDOS) for La2-xSrxCuO4 (x = 0.0, 0.08, 0.12, 0.15 and 0.21) powder samples are determined from inelastic cold-neutron scattering measurements using the TOF-type cold-neutron spectrometer, AGNES, mainly above the tetragonal-to-orthorhombic structural phase transition temperature. The softening of modes at about 12 meV was observed in the GPDOS for La1.85Sr0.15CuO4. This phenomenon is related with the instability of the K2NiF4-type tetragonal structure.

UR - http://www.scopus.com/inward/record.url?scp=0032590533&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032590533&partnerID=8YFLogxK

U2 - 10.1016/S0022-3697(99)00157-2

DO - 10.1016/S0022-3697(99)00157-2

M3 - Conference article

AN - SCOPUS:0032590533

SN - 0022-3697

VL - 60

SP - 1439

EP - 1442

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 8

T2 - Proceedings of the 1998 7th ISSP International Symposium Frontiers in Neutron Scattering Research (ISSP7)

Y2 - 24 November 1998 through 27 November 1998

ER -

Cold-neutron scattering study of La_2-xSr_xCuO₄

Abstract

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