Lattice dynamics of La2CuO4 and YBa2Cu3O7

Shunji Kimura; Takayuki Sota; Katsuo Suzuki

doi:10.1016/S0921-4526(09)80128-2

Lattice dynamics of La₂CuO₄ and YBa₂Cu₃O₇

Shunji Kimura^*, Takayuki Sota, Katsuo Suzuki

^*Corresponding author for this work

School of Advanced Science and Engineering

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

Abstract

We report lattice dynamics calculations of La₂CuO₄ and YBa₂Cu₃O₇ where the mode assignment is fully performed. It is found that frequencies of the in-plane bond streching 0 vibration mode phonons are much higher than those of the bond bending 0 vibration mode phonons in La₂CuO₄ while they are close in YBa₂Cu₃O₇. The bond streching mode phonons and the bond bending mode phonons can couple to electrons near E_F in YBa₂Cu₃O₇ but the latter can not in La₂CuO₄.

Original language	English
Pages (from-to)	1085-1086
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	165-166
DOIs	https://doi.org/10.1016/S0921-4526(09)80128-2
Publication status	Published - 1990

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(09)80128-2

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title = "Lattice dynamics of La2CuO4 and YBa2Cu3O7",

abstract = "We report lattice dynamics calculations of La2CuO4 and YBa2Cu3O7 where the mode assignment is fully performed. It is found that frequencies of the in-plane bond streching 0 vibration mode phonons are much higher than those of the bond bending 0 vibration mode phonons in La2CuO4 while they are close in YBa2Cu3O7. The bond streching mode phonons and the bond bending mode phonons can couple to electrons near EF in YBa2Cu3O7 but the latter can not in La2CuO4.",

author = "Shunji Kimura and Takayuki Sota and Katsuo Suzuki",

year = "1990",

doi = "10.1016/S0921-4526(09)80128-2",

language = "English",

volume = "165-166",

pages = "1085--1086",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

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T1 - Lattice dynamics of La2CuO4 and YBa2Cu3O7

AU - Kimura, Shunji

AU - Sota, Takayuki

AU - Suzuki, Katsuo

PY - 1990

Y1 - 1990

N2 - We report lattice dynamics calculations of La2CuO4 and YBa2Cu3O7 where the mode assignment is fully performed. It is found that frequencies of the in-plane bond streching 0 vibration mode phonons are much higher than those of the bond bending 0 vibration mode phonons in La2CuO4 while they are close in YBa2Cu3O7. The bond streching mode phonons and the bond bending mode phonons can couple to electrons near EF in YBa2Cu3O7 but the latter can not in La2CuO4.

AB - We report lattice dynamics calculations of La2CuO4 and YBa2Cu3O7 where the mode assignment is fully performed. It is found that frequencies of the in-plane bond streching 0 vibration mode phonons are much higher than those of the bond bending 0 vibration mode phonons in La2CuO4 while they are close in YBa2Cu3O7. The bond streching mode phonons and the bond bending mode phonons can couple to electrons near EF in YBa2Cu3O7 but the latter can not in La2CuO4.

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U2 - 10.1016/S0921-4526(09)80128-2

DO - 10.1016/S0921-4526(09)80128-2

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VL - 165-166

SP - 1085

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -

Lattice dynamics of La₂CuO₄ and YBa₂Cu₃O₇

Abstract

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