DOAJ Open Access 2025

Using magnetic dynamics to measure the spin gap in a candidate Kitaev material

Xinyi Jiang Qingzheng Qiu Cheng Peng Hoyoung Jang Wenjie Chen +14 lainnya

Abstrak

Abstract Spin-orbit entangled materials have attracted widespread interest due to the novel magnetic phenomena arising from the interplay between spin-orbit coupling and electronic correlations. However, the intricate nature of spin interactions within Kiteav materials complicates the precise measurement of low-energy spin excitations. Using Na2Co2TeO6 as an example, we study these low-energy spin excitations using the time-resolved resonant elastic x-ray scattering (tr-REXS). Our observations unveil remarkably slow spin dynamics at the magnetic peak, whose recovery timescale is several nanoseconds. This timescale aligns with the extrapolated spin gap of ~1 μeV, obtained by density matrix renormalization group (DMRG) simulations in the thermodynamic limit. The consistency demonstrates the efficacy of tr-REXS in discerning low-energy spin gaps inaccessible to conventional spectroscopic techniques.

Topik & Kata Kunci

Materials of engineering and construction. Mechanics of materials Atomic physics. Constitution and properties of matter

Penulis (19)

Xinyi Jiang

Qingzheng Qiu

Cheng Peng

Hoyoung Jang

Wenjie Chen

Xianghong Jin

Li Yue

Byungjune Lee

Sang-Youn Park

Minseok Kim

Hyeong-Do Kim

Xinqiang Cai

Qizhi Li

Tao Dong

Nanlin Wang

Joshua J. Turner

Yuan Li

Yao Wang

Yingying Peng

Format Sitasi

APA MLA BibTeX

Jiang, X., Qiu, Q., Peng, C., Jang, H., Chen, W., Jin, X. et al. (2025). Using magnetic dynamics to measure the spin gap in a candidate Kitaev material. https://doi.org/10.1038/s41535-025-00737-8

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Informasi Jurnal

Tahun Terbit: 2025
Sumber Database: DOAJ
DOI: 10.1038/s41535-025-00737-8
Akses: Open Access ✓