Theory of the soliton-induced phase transition in quasi-one-dimensional magnets

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · Phys. Rev. B: Condens. Matter; (United States)

OSTI ID:6801032

Hol-dash-baryst, J A; Sukiennicki, A

It is shown that the phase transition occurring in quasi-one-dimensional systems of weakly coupled magnetic chains with solitons in the form of ..pi.. kinks is closely related to the properties of these solitons. The critical behavior of the systems considered corresponds to the critical behavior of the Ising model with the same dimension. The model describing the behavior of solitons below and above the critical temperature is presented. This model explains the experimental field dependence of the magnetization direction in the spin-flopping configuration for antiferromagnetic K/sub 2/FeF/sub 5/. Application of the theory proposed here to the antiferromagnetic tetramethylammonium manganese trichloride (TMMC) allows one to explain the experimental field dependence of the Neel temperature.

• Research Organization: Institute of Physics, Warsaw Technical University, 00-662 Warsaw, Poland
• OSTI ID: 6801032
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:10; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALKALI METAL COMPLEXES
ANTIFERROMAGNETIC MATERIALS
COMPLEXES
CORRELATIONS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FERROMAGNETIC MATERIALS
MAGNETIC FIELDS
MAGNETIC MATERIALS
MAGNETIZATION
MATERIALS
ORGANIC COMPOUNDS
PHASE TRANSFORMATIONS
POTASSIUM COMPLEXES
QUASI PARTICLES
SOLITONS
TESTING
VALIDATION