Hidden itinerant-spin phase in heavily overdoped La2-xSr xCuO4 superconductors revealed by dilute Fe doping: A combined neutron scattering and angle-resolved photoemission study

Rui Hua He, M. Fujita, M. Enoki, M. Hashimoto, S. Iikubo, S. K. Mo, Hong Yao, T. Adachi, Y. Koike, Z. Hussain, Z. X. Shen, K. Yamada

研究成果: Article査読

25 被引用数 (Scopus)

抄録

We demonstrated experimentally a direct way to probe a hidden propensity to the formation of a spin-density wave in a nonmagnetic metal with strong Fermi surface nesting. Substituting Fe for a tiny amount of Cu (1%) induced an incommensurate magnetic order below 20 K in heavily overdoped La 2-xSrxCuO4. Elastic neutron scattering suggested that this order cannot be ascribed to the localized spins on Cu or doped Fe. Angle-resolved photoemission revealed a strong Fermi surface nesting inherent in the pristine La2-xSrxCuO4 that likely drives this order. Our finding presents the first example of the long-sought "itinerant-spin extreme" of cuprates, where the spins of itinerant doped holes define the magnetic ordering ground state; it complements the current picture of cuprate spin physics that highlights the predominant role of localized spins at lower dopings.

本文言語English
論文番号127002
ジャーナルPhysical review letters
107
12
DOI
出版ステータスPublished - 2011 9 14

ASJC Scopus subject areas

  • Physics and Astronomy(all)

フィンガープリント 「Hidden itinerant-spin phase in heavily overdoped La<sub>2-x</sub>Sr <sub>x</sub>CuO<sub>4</sub> superconductors revealed by dilute Fe doping: A combined neutron scattering and angle-resolved photoemission study」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。

引用スタイル