Pith. sign in

REVIEW

Spin excitations in the two-dimensional strongly coupled dimer system malachite

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1412.5908 v1 pith:RL76HMLF submitted 2014-12-18 cond-mat.str-el

Spin excitations in the two-dimensional strongly coupled dimer system malachite

E. Canevet , B. Fak , R. K. Kremer , J. H. Chun , M. Enderle , E. E. Gordon , J. L. Bettis , M.-H. Whangbo
show 2 more authors
J. W. Taylor D. T. Adroja
This is my paper
classification cond-mat.str-el
keywords malachiteantiferromagnetscoupledcouplingdimerexcitationslatticequantum
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

The mineral malachite, Cu2(OD)2CO3, has a quantum spin-liquid ground state and no long-range magnetic order down to at least T=0.4 K. Inelastic neutron scattering measurements show that the excitation spectrum consists of dispersive gapped singlet-triplet excitations, characteristic of spin-1/2 dimer-forming Heisenberg antiferromagnets. We identify a new two-dimensional dimerized coupling scheme with strong interdimer coupling J'/J1~0.3 that places malachite between strongly coupled alternating chains, square lattice antiferromagnets, and infinite-legged ladders. The geometry of the interaction scheme resembles the staggered dimer lattice, which may allow unconventional quantum criticality.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.