Universität zu Köln

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
Creators:	Creators Email ORCID ORCID Put Code Takubo, Kou UNSPECIFIED orcid.org/0000-0002-2591-1244 UNSPECIFIED Mizokawa, Takashi UNSPECIFIED orcid.org/0000-0002-7682-2348 UNSPECIFIED Man, Huiyuan UNSPECIFIED UNSPECIFIED UNSPECIFIED Yamamoto, Kohei UNSPECIFIED UNSPECIFIED UNSPECIFIED Zhang, Yujun UNSPECIFIED UNSPECIFIED UNSPECIFIED Hirata, Yasuyuki UNSPECIFIED UNSPECIFIED UNSPECIFIED Wadati, Hiroki UNSPECIFIED orcid.org/0000-0001-5969-8624 UNSPECIFIED Khomskii, Daniel, I UNSPECIFIED UNSPECIFIED UNSPECIFIED Nakatsuji, Satoru UNSPECIFIED UNSPECIFIED UNSPECIFIED
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
Uncontrolled Keywords:	Keywords Language ORDER Multiple languages Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/59162