2020年4月22日
Emergent spin-1 Haldane gap and ferroelectricity in a frustrated spin-12 ladder
Physical Review B
- 巻
- 101
- 号
- 14
- 開始ページ
- 140408(R)
- 終了ページ
- 140408(R)
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/physrevb.101.140408
- 出版者・発行元
- American Physical Society (APS)
We report experimental and theoretical evidence that Rb2Cu2Mo3O12 has a nonmagnetic tetramer ground state of a two-leg ladder comprising antiferromagnetically coupled frustrated spin-12 chains and exhibits a Haldane spin gap of emergent spin-1 pairs. Three spin excitations split from the spin-1 triplet by a Dzyaloshinskii-Moriya interaction are identified in inelastic neutron-scattering and electron spin resonance spectra. A tiny magnetic field generates ferroelectricity without closing the spin gap, indicating a unique class of ferroelectricity induced by a vector spin chirality order.
- リンク情報
-
- DOI
- https://doi.org/10.1103/physrevb.101.140408
- URL
- https://link.aps.org/article/10.1103/PhysRevB.101.140408
- URL
- http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.101.140408/fulltext
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85084924869&origin=inward
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85084924869&origin=inward
- ID情報
-
- DOI : 10.1103/physrevb.101.140408
- ISSN : 2469-9950
- eISSN : 2469-9969
- SCOPUS ID : 85084924869