dc.contributor.author
Iqbal, Yasir
dc.contributor.author
Müller, Tobias
dc.contributor.author
Jeschke, Harald O.
dc.contributor.author
Thomale, Ronny
dc.contributor.author
Reuther, Johannes
dc.date.accessioned
2019-03-07T12:06:38Z
dc.date.available
2019-03-07T12:06:38Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/24093
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-1867
dc.description.abstract
We investigate the stability of the spiral spin liquid phase in MnSc2S4 against thermal and quantum fluctuations as well as against perturbing effects of longer-range interactions. Employing ab initio density functional theory (DFT) calculations we propose a realistic Hamiltonian for MnSc2S4, featuring second (J2) and third (J3) neighbor Heisenberg interactions on the diamond lattice that are considerably larger than previously assumed. We argue that the combination of strong J2 and J3 couplings reproduces the correct magnetic Bragg peak position measured experimentally. Calculating the spin-structure factor within the pseudofermion functional-renormalization group technique, we find that close to the magnetic phase transition the sizable J3 couplings induce a strong spiral selection effect, in agreement with experiments. With increasing temperature the spiral selection becomes weaker such that in a window around three to five times the ordering temperature an approximate spiral spin liquid is realized in MnSc2S4
en
dc.subject
mott insulators
en
dc.subject
Single crystal materials
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik::530 Physik
dc.title
Stability of the spiral spin liquid in MnSc2S4
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
064427
dcterms.bibliographicCitation.doi
10.1103/PhysRevB.98.064427
dcterms.bibliographicCitation.journaltitle
Physical Review B
dcterms.bibliographicCitation.number
6
dcterms.bibliographicCitation.volume
98
dcterms.bibliographicCitation.url
https://doi.org/10.1103/PhysRevB.98.064427
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)