Takubo, Kou ORCID: 0000-0002-2591-1244, Mizokawa, Takashi ORCID: 0000-0002-7682-2348, Man, Huiyuan, Yamamoto, Kohei, Zhang, Yujun, Hirata, Yasuyuki, Wadati, Hiroki ORCID: 0000-0001-5969-8624, Khomskii, Daniel, I and Nakatsuji, Satoru (2021). 6-GHz lattice response in a quantum spin-orbital liquid probed by time-resolved resonant x-ray scattering. Phys. Rev. B, 104 (20). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969
Full text not available from this repository.Abstract
Long-sought quantum spin liquids usually emerge in geometrically frustrated magnets. Less commonly, unfrustrated magnets can harbor a variety of quantum spin liquids if charge and/or orbital degrees of freedom are involved. Jahn-Teller distortion of Cu2+O6 octahedra is absent in hexagonal Ba3CuSb2O9 suggesting a Cu 3d spin-orbital liquid state. Here, by means of time-resolved resonant x-ray scattering, we show that hexagonal Ba3CuSb2O9 exhibits a charge-orbital dynamics which is absent in the orthorhombic phase of Ba3CuSb2O9 with Jahn-Teller distortion and Cu 3d orbital order. The time scale of charge-orbital dynamics manifests in the coherent phonons at 6 GHz. The present work reveals a role of electron-lattice entanglement in the quantum spin-orbital liquid state.
Item Type: | Journal Article | ||||||||||||||||||||||||||||||||||||||||
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URN: | urn:nbn:de:hbz:38-591629 | ||||||||||||||||||||||||||||||||||||||||
DOI: | 10.1103/PhysRevB.104.205110 | ||||||||||||||||||||||||||||||||||||||||
Journal or Publication Title: | Phys. Rev. B | ||||||||||||||||||||||||||||||||||||||||
Volume: | 104 | ||||||||||||||||||||||||||||||||||||||||
Number: | 20 | ||||||||||||||||||||||||||||||||||||||||
Date: | 2021 | ||||||||||||||||||||||||||||||||||||||||
Publisher: | AMER PHYSICAL SOC | ||||||||||||||||||||||||||||||||||||||||
Place of Publication: | COLLEGE PK | ||||||||||||||||||||||||||||||||||||||||
ISSN: | 2469-9969 | ||||||||||||||||||||||||||||||||||||||||
Language: | English | ||||||||||||||||||||||||||||||||||||||||
Faculty: | Unspecified | ||||||||||||||||||||||||||||||||||||||||
Divisions: | Unspecified | ||||||||||||||||||||||||||||||||||||||||
Subjects: | no entry | ||||||||||||||||||||||||||||||||||||||||
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URI: | http://kups.ub.uni-koeln.de/id/eprint/59162 |
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