## 抄録

Photoemission in the system of linear charged chains has been studied within the one-step model incorporating the dipole transition matrix, from which its dependencies on the photoelectron momentum (k), photon polarization (Ê). and photon energy (ω) can be explored. The employed model is the three-dimensional array of noninteracting chains, which is so simple as to allow an analytic approach. Motivation of the study is for the doped CuO_{3} chain in PrBa_{2}Cu_{3}O_{7} and the doped static stripe phase in La_{2-x-y}Nd_{y}Sr_{x}CuO_{4}. From chains having one-dimensional dispersion exhibiting spin-charge separation, spectral dependences on the momentum perpendicular to the chain and photon polarization are discussed for PrBa_{2}Cu_{3}O_{7}. For La_{2-x-y}Nd_{y}Sr_{x}CuO_{4}, the anomalous spectral distribution formed by two sets of stripes perpendicular to each other is investigated. The geometric effects resulting from the transition matrix including the interference of photocurrents from different chains are found to change the simple one-dimensional feature drastically. We find these changes are consistent with experiment for the chain system PrBa_{2}Cu_{3}O_{7}, but less satisfactory for the stripe phase in La_{2-x-y}Nd_{y}Sr_{x}CuO_{4}. This means that in the stripe phase much two-dimensional character still exists unlike the chain system.

本文言語 | English |
---|---|

ページ（範囲） | 2468-2477 |

ページ数 | 10 |

ジャーナル | journal of the physical society of japan |

巻 | 70 |

号 | 8 |

DOI | |

出版ステータス | Published - 2001 8月 |

外部発表 | はい |

## ASJC Scopus subject areas

- 物理学および天文学一般

## フィンガープリント

「Photoemission in the system of linear chains: Application to PrBa_{2}CU

_{3}O

_{7}and La

_{2-x-y}Nd

_{y}Sr

_{x}CuO

_{4}」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。