Universität zu Köln

Wang, J. C., Terzic, J., Qi, T. F., Ye, Feng ORCID: 0000-0001-7477-4648, Yuan, S. J., Aswartham, S., Streltsov, S. V., Khomskii, D. I., Kaul, R. K. and Cao, G. (2014). Lattice-tuned magnetism of Ru4+(4d(4)) ions in single crystals of the layered honeycomb ruthenates Li2RuO3 and Na2RuO3. Phys. Rev. B, 90 (16). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1550-235X

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Abstract

We synthesize and study single crystals of the layered honeycomb lattice Mott insulators Na2RuO3 and Li2RuO3 with magnetic Ru4+(4d(4)) ions. The newly found Na2RuO3 features a nearly ideal honeycomb lattice and orders antiferromagnetically at 30 K. Single crystals of Li2RuO3 adopt a honeycomb lattice with either C2/m or more distorted P2(1)/m below 300 K, depending on detailed synthesis conditions. We find that Li2RuO3 in both structures hosts a well-defined magnetic state, in contrast to the singlet ground state found in polycrystalline Li2RuO3. A phase diagram generated based on our results uncovers a new, direct correlation between the magnetic ground state and basal-plane distortions in the honeycomb ruthenates.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Wang, J. C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Terzic, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Qi, T. F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ye, Feng UNSPECIFIED orcid.org/0000-0001-7477-4648 UNSPECIFIED Yuan, S. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Aswartham, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Streltsov, S. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Khomskii, D. I. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kaul, R. K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cao, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-425477
DOI:	10.1103/PhysRevB.90.161110
Journal or Publication Title:	Phys. Rev. B
Volume:	90
Number:	16
Date:	2014
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1550-235X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/42547