High-energy Magnetic Excitations in Electron-doped High-<i>T</i>_c Cuprate

• Fujita Masaki

  Institute for Materials Research, Tohoku University

• Ishii Kenji

  Quantum Beam Science Center, Japan Atomic Energy Agency

Bibliographic Information

Other Title

• 電子ドープ型銅酸化物超伝導体の高エネルギー磁気励起
• サイエンス記事 電子ドープ型銅酸化物超伝導体の高エネルギー磁気励起
• サイエンス キジ デンシ ドープガタ ドウ サンカブツ チョウデンドウタイ ノ コウエネルギー ジキレイキ

Abstract

We introduce the inelastic neutron and synchrotron X-ray scattering studies on the magnetic excitation in the electron-doped copper oxide. The recent development of state-of-the-art spectrometers at large facilities such as J-PARC enables us to study composite dynamics in the energy-momentum space arising from the interacting degrees of freedom. High-T_c copper oxide superconductor is exotic systems, in which the spin and charge degrees of freedom are coupled. We found the elongation of spin excitation by the electron-doping, which is quite different from the negligible doping effect in the hole-doped system. Therefore, there exists the electron-hole asymmetry in the observed spin excitation against the doping.

Journal

• hamon

  hamon 25 (1), 18-21, 2015

  The Japanese Society for Neutron Science

Keywords

• high-<i>T</i>_c superconductivity
• high-energy magnetic excitations

Details

• CRID: 1390845713022357248
• NII Article ID: 130007510541
• NII Book ID: AA11905115
• DOI: 10.5611/hamon.25.1_18
• ISSN: 1884636X
• ISSN: 1349046X
• NDL BIB ID: 026095246
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026095246
• Web Site: https://www.jstage.jst.go.jp/article/hamon/25/1/25_18/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed