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

^*この研究の対応する著者

先進理工学部

研究成果: Article › 査読

抄録

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.

本文言語	English
ページ（範囲）	1085-1086
ページ数	2
ジャーナル	Physica B: Condensed Matter
巻	165-166
DOI	https://doi.org/10.1016/S0921-4526(09)80128-2
出版ステータス	Published - 1990

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
電子工学および電気工学

文献へのアクセス

10.1016/S0921-4526(09)80128-2

他のファイルとリンク

引用スタイル

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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.",

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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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