Zone-boundary excitations in coupled Haldane spin chain compounds PbNi{sub 2}V{sub 2}O{sub 8} and SrNi{sub 2}V{sub 2}O{sub 8}

Journal Article · Mon Oct 01 00:00:00 EDT 2001 · Physical Review B

DOI:https://doi.org/10.1103/PhysRevB.64.134415· OSTI ID:40277653

Zheludev, A; Masuda, T; Uchinokura, K; Nagler, S E

Magnetic excitations in the quasi-one-dimensional quantum antiferromagnets PbNi{sub 2}V{sub 2}O{sub 8} and SrNi{sub 2}V{sub 2}O{sub 8} are measured all the way up to the zone-boundary energy using inelastic neutron scattering from powder samples. An estimate for next-nearest-neighbor in-chain interactions is obtained. The role played by these interactions in spin-vacancy-induced magnetic ordering in PbNi{sub 2}V{sub 2}O{sub 8} is discussed.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: (US)
• DOE Contract Number: AC02-98CH10886; AC05-96OR22464
• OSTI ID: 40277653
• Journal Information: Physical Review B, Vol. 64, Issue 13; Other Information: DOI: 10.1103/PhysRevB.64.134415; Othernumber: PRBMDO000064000013134415000001; 089134PRB; PBD: 1 Oct 2001; ISSN 0163-1829
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
NEUTRONS
SCATTERING
SPIN
MAGNETIC PROPERTIES
ANTIFERROMAGNETIC MATERIALS
NEUTRON DIFFRACTION