EXPERIMENTAL-EVIDENCE OF EXCITONS IN NI(EN)(2)NI(CN)(4)

Authors
ORENDAC M ORENDACOVA A CERNAK J FEHER A SIGNORE PJC MEISEL MW MERAH S VERDAGUER M
Citation
M. Orendac et al., EXPERIMENTAL-EVIDENCE OF EXCITONS IN NI(EN)(2)NI(CN)(4), Journal of magnetism and magnetic materials, 140, 1995, pp. 1643-1644
Citations number
11
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
140
Year of publication
1995
Part
3
Pages
1643 - 1644
Database
ISI
SICI code
0304-8853(1995)140:<1643:EOEIN>2.0.ZU;2-0
Abstract
Specific heat and susceptibility measurements were performed on Ni(C2H 8N2)(2)Ni(CN)(4) between nominally 50 mK and 20 K. The results indicat e the material is an S = 1 Heisenberg chain system with D/k = 6 K and D/\J\ = 10-20. The low-temperature specific heat results suggest, for the first time, tile presence of magnetic excitations known as (anti) excitons.