Influence of weak localization on the threshold of the parametric excitation of magnons in low-dimensional magnets

Journal Article · Mon Jun 01 00:00:00 EDT 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.45.12397· OSTI ID:7182689

Cherepanov, V B ^[1]

---

1. Department of Physics, University of Manitoba, Winnipeg, Manitoba, R3T 2N2 (Canada)

The influence of multiple elastic scattering on the magnon parametric excitation in low-dimensional magnets is studied. The multiple-scattering results in the strong backscattering of magnons. This backscattering can interfere with the parametric excitation because both phenomena involve pairs of magnons with opposite momenta. It is shown that the influence of the backscattering on the threshold of parametric excitation in two-dimensional systems is proportional to the logarithm of the size, even if it exceeds the inelastic mean free path. The possibilities of experimental observation of the effect are discussed.

• OSTI ID: 7182689
• Journal Information: Physical Review, B: Condensed Matter; (United States), Vol. 45:21; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
FERRITES
PARAMETRIC INSTABILITIES
SCALING LAWS
SPIN WAVES
SUPERCONDUCTORS
COOPER PAIRS
ANISOTROPY
BACKSCATTERING
CRYSTAL DEFECTS
ELASTIC SCATTERING
FERROMAGNETIC MATERIALS
INELASTIC SCATTERING
MAGNETIC DIPOLE MOMENTS
MAGNONS
MEAN FREE PATH
THIN FILMS
TRANSITION TEMPERATURE
CRYSTAL STRUCTURE
DIPOLE MOMENTS
FERRIMAGNETIC MATERIALS
FILMS
INSTABILITY
IRON COMPOUNDS
MAGNETIC MATERIALS
MAGNETIC MOMENTS
MATERIALS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
QUASI PARTICLES
SCATTERING
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
665411* - Basic Superconductivity Studies- (1992-)