Universität zu Köln

Wagner, Julian ORCID: 0000-0001-8325-9373, Sahasrabudhe, Anuja, Versteeg, Rolf B., Wysocki, Lena ORCID: 0000-0002-7540-2683, Wang, Zhe, Tsurkan, Vladimir, Loidl, Alois ORCID: 0000-0002-5579-0746, Khomskii, Daniel, I, Hedayat, Hamoon and van Loosdrecht, Paul H. M. (2022). Magneto-optical study of metamagnetic transitions in the antiferromagnetic phase of alpha-RuCl3. npj Quantum Mater., 7 (1). BERLIN: NATURE PORTFOLIO. ISSN 2397-4648

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Abstract

alpha-RuCl3 is a promising candidate material to realize the so far elusive quantum spin liquid ground state. However, at low temperatures, the coexistence of different exchange interactions couple the effective pseudospins into an antiferromagnetically zigzag (ZZ) ordered state. The low-field evolution of spin structure is still a matter of debate and the magnetic anisotropy within the honeycomb planes is an open and challenging question. Here, we investigate the evolution of the ZZ order parameter by second-order magneto-optical effects, the magnetic linear dichroism and magnetic linear birefringence. Our results clarify the presence and nature of metamagnetic transitions in the ZZ phase of alpha-RuCl3. The experimental observations show the presence of initial magnetic domain repopulation followed by a spin-flop transition for small in-plane applied magnetic fields (approximate to 1.6 T) along specific crystallographic directions. In addition, using a magneto-optical approach, we detected the recently reported emergence of a field-induced intermediate phase before suppressing the ZZ order. The results disclose the details of various angle-dependent in-plane metamagnetic transitions quantifying the bond-anisotropic interactions present in alpha-RuCl3.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Wagner, Julian UNSPECIFIED orcid.org/0000-0001-8325-9373 UNSPECIFIED Sahasrabudhe, Anuja UNSPECIFIED UNSPECIFIED UNSPECIFIED Versteeg, Rolf B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wysocki, Lena UNSPECIFIED orcid.org/0000-0002-7540-2683 UNSPECIFIED Wang, Zhe UNSPECIFIED UNSPECIFIED UNSPECIFIED Tsurkan, Vladimir UNSPECIFIED UNSPECIFIED UNSPECIFIED Loidl, Alois UNSPECIFIED orcid.org/0000-0002-5579-0746 UNSPECIFIED Khomskii, Daniel, I UNSPECIFIED UNSPECIFIED UNSPECIFIED Hedayat, Hamoon UNSPECIFIED UNSPECIFIED UNSPECIFIED van Loosdrecht, Paul H. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-683884
DOI:	10.1038/s41535-022-00434-w
Journal or Publication Title:	npj Quantum Mater.
Volume:	7
Number:	1
Date:	2022
Publisher:	NATURE PORTFOLIO
Place of Publication:	BERLIN
ISSN:	2397-4648
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language BIREFRINGENCE; BEHAVIOR; ANYONS Multiple languages Materials Science, Multidisciplinary; Quantum Science & Technology; Physics, Applied; Physics, Condensed Matter Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/68388