Published February 1, 1994 | Version v1
Journal article Metadata-only

Ferromagnetic behavior and magnetic excitations in a molecular-based alternating-spin chain: Decamethylchromocenium tetracyanoethanide

Creators

  • 1. Department of Physics, The Ohio State University, Columbus, Ohio 43210-1106 (United States)
  • 2. Department of Physics, University of Miami, Coral Gables, Florida 33124 (United States)
  • 3. Central Research and Development Department, DuPont, Wilmington, Delaware 19880-0328 (United States)
  • 4. Departments of Physics and Chemistry, The Ohio State University, Columbus, Ohio 43210-1106 (United States)

Description

We report the study of magnetic properties of a molecular-based alternating-spin chain: metallocenium electron-transfer salt decamethylchromocenium tetracyanoethanide, [CrCp2*] [TCNE]. We give a modified spin-wave theory for the Heisenberg alternating-spin chains. The low-field susceptibility and magnetization data agree with the theoretical results indicating that one-dimensional linear magnon excitations dominate the magnetic behavior above the three-dimensional ordering temperature. Strong ferromagnetic intrachain coupling, J congruent 9 K, is found. Unusual critical phenomena associated with lattice dimensional crossover are discussed

Additional details

Publishing Information

Journal Title
Physical Review. B, Condensed Matter
Journal Volume
49
Journal Issue
6
Journal Page Range
p. 4364-4367.
ISSN
0163-1829
CODEN
PRBMDO

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
25039421
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ELECTRON TRANSFER; EXCHANGE INTERACTIONS; HEISENBERG MODEL; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; ORGANOMETALLIC COMPOUNDS; SPIN WAVES; TEMPERATURE DEPENDENCE
Descriptors DEC
CRYSTAL MODELS; INTERACTIONS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; MATHEMATICAL MODELS; ORGANIC COMPOUNDS; PHYSICAL PROPERTIES