Article Emergent spin-1 Haldane gap and ferroelectricity in a frustrated spin-1/2 ladder

Nakamura, M. ; Hase, Masashi SAMURAI ORCID ; Kajimoto, R. ; Morioka, T. ; Sakakibara, T. ; Frontzek, M. ; Reynolds, N. ; Hagiwara, M. ; Kimura, T. ; Yamaguchi, Y. ; Tomiyasu, K. ; White, J. S. ; Onoda, S. ; Masuda, T. ; Ohira-Kawamura, S. ; Soda, M. ; Ueda, H. ; Nakajima, K. ; Inamura, Y. ; Yasui, Y. ; Yoshizawa, D. ; Hagihala, M.

PRB101_140408_R__2020.pdf
Download file (1.98 MB)
Download as zip (1.8 MB)
Collection

Citation
Nakamura, M., Hase, Masashi, Kajimoto, R., Morioka, T., Sakakibara, T., Frontzek, M., Reynolds, N., Hagiwara, M., Kimura, T., Yamaguchi, Y., Tomiyasu, K., White, J. S., Onoda, S., Masuda, T., Ohira-Kawamura, S., Soda, M., Ueda, H., Nakajima, K., Inamura, Y., Yasui, Y., Yoshizawa, D., Hagihala, M.. Emergent spin-1 Haldane gap and ferroelectricity in a frustrated spin-1/2 ladder. https://doi.org/10.1103/PhysRevB.101.140408
SAMURAI

Description:

(abstract)

We report experimental and theoretical evidence that Rb2Cu2Mo3O12 has a nonmagnetic tetramer ground state of a two-leg ladder comprising　antiferromagnetically coupled frustrated spin- 1/2 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.

Rights:

Keyword: Rb2Cu2Mo3O12, ferroelectricity, Haldane gap, frustrated spin-1/2 ladder

Date published: 2020-04-22

Publisher: American Physical Society

Journal:

Funding:

Manuscript type: Not a journal article

MDR DOI:

First published URL: https://doi.org/10.1103/PhysRevB.101.140408

Related item:

Other identifier(s):

Contact agent:

Updated at: 2024-01-05 22:13:43 +0900

Published on MDR: 2021-08-14 03:54:46 +0900

Filename Size
Filename PRB101_140408_R__2020.pdf (Thumbnail)
application/pdf 		Size 1.98 MB Detail