TY - JOUR
T1 - Experimental evidence of a haldane gap in an s=2 quasi-linear chain antiferromagnet
AU - Granroth, G. E.
AU - Meisel, M. W.
AU - Chaparala, M.
AU - Jolicoeur, Th
AU - Ward, B. H.
AU - Talham, D. R.
PY - 1996
Y1 - 1996
N2 - The magnetic susceptibility of the S=2 quasi-linear chain Heisenberg antiferromagnet (2,2′-bipyridine)trichloromanganese(III), [Formula presented], has been measured from 1.8 to 300 K with the magnetic field, H, parallel and perpendicular to the chains. The analyzed data yield g≈2 and J≈35 K. The magnetization, M, has been studied at 30 mK and 1.4 K in H up to 16 T. No evidence of long-range order is observed. Depending on crystal orientation, M≈0 at 30 mK until a critical field is achieved [Formula presented], where M increases continuously as H is increased. These results are interpreted as evidence of a Haldane gap.
AB - The magnetic susceptibility of the S=2 quasi-linear chain Heisenberg antiferromagnet (2,2′-bipyridine)trichloromanganese(III), [Formula presented], has been measured from 1.8 to 300 K with the magnetic field, H, parallel and perpendicular to the chains. The analyzed data yield g≈2 and J≈35 K. The magnetization, M, has been studied at 30 mK and 1.4 K in H up to 16 T. No evidence of long-range order is observed. Depending on crystal orientation, M≈0 at 30 mK until a critical field is achieved [Formula presented], where M increases continuously as H is increased. These results are interpreted as evidence of a Haldane gap.
UR - http://www.scopus.com/inward/record.url?scp=6144258694&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.77.1616
DO - 10.1103/PhysRevLett.77.1616
M3 - Article
AN - SCOPUS:6144258694
SN - 0031-9007
VL - 77
SP - 1616
EP - 1619
JO - Physical Review Letters
JF - Physical Review Letters
IS - 8
ER -