dc.contributor.author
Lampen-Kelley, P.
dc.contributor.author
Rachel, S.
dc.contributor.author
Reuther, J.
dc.contributor.author
Yan, J.-Q.
dc.contributor.author
Banerjee, A.
dc.contributor.author
Bridges, C. A.
dc.contributor.author
Cao, H. B.
dc.contributor.author
Nagler, S. E.
dc.contributor.author
Mandrus, D.
dc.date.accessioned
2019-03-07T14:25:41Z
dc.date.available
2019-03-07T14:25:41Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/24107
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-1881
dc.description.abstract
The magnetic insulator α−RuCl3 is a promising candidate to realize Kitaev interactions on a quasi-two-dimensional honeycomb lattice. We perform extensive susceptibility measurements on single crystals of α−RuCl3, including angle dependence of the in-plane longitudinal and transverse susceptibilities, which reveal a unidirectional anisotropy within the honeycomb plane. By comparing the experimental results to a high-temperature expansion of a Kitaev-Heisenberg-Γ spin Hamiltonian with bond anisotropy, we find excellent agreement with the observed phase shift and periodicity of the angle-resolved susceptibilities. Within this model, we show that the pronounced difference between in-plane and out-of-plane susceptibilities as well as the finite transverse susceptibility are rooted in strong symmetric off-diagonal Γ spin exchange. The Γ couplings and relationships between other terms in the model Hamiltonian are quantified by extracting relevant Curie-Weiss intercepts from the experimental data.
en
dc.format.extent
6 Seiten
dc.subject
Magnetic anisotropy
en
dc.subject
Quantum spin liquid
en
dc.subject
DC susceptibility measurements
en
dc.subject
Kitaev-Heisenberg model
en
dc.subject
Condensed Matter & Materials Physics
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik::530 Physik
dc.title
Anisotropic susceptibilities in the honeycomb Kitaev system α−RuCl3
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
100403(R)
dcterms.bibliographicCitation.doi
10.1103/PhysRevB.98.100403
dcterms.bibliographicCitation.journaltitle
Physical Review B
dcterms.bibliographicCitation.number
10
dcterms.bibliographicCitation.volume
98
dcterms.bibliographicCitation.url
https://doi.org/10.1103/PhysRevB.98.100403
dcterms.rightsHolder.note
Copyright des Verlags
dcterms.rightsHolder.url
https://journals.aps.org/copyrightFAQ.html#post
refubium.affiliation
Physik
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.issn
2469-9950 (Print)
dcterms.isPartOf.issn
2469-9969 (Online)