Published April 1981 | Version v1
Journal article Metadata-only

Magneto-vibrational excitations in PrAl2

Creators

  • 1. Joint Inst. for Nuclear Research, Dubna (USSR)

Description

The equation of motion method for the Green function is developed to describe collective excitations in the model of metallic rare-earth compounds taking into account the magneto-elastic interaction. Cubic compounds with a non-magnetic crystal-field ground state are investigated. A comparison with inelastic neutron scattering results for PrAl2 in the ferromagnetic phase shows excellent agreement between the calculated coupled magneto-vibrational modes and the experimental spectrum. In the paramagnetic phase hybridised quadrupole-type exciton-phonon excitations can appear. (author)

Additional details

Publishing Information

Journal Title
J. Phys., F (London). Met. Phys.
Journal Volume
11
Journal Issue
4
Series
J. Phys., F (London). Met. Phys.
Journal Page Range
905-913
ISSN
0305-4608

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
12614664
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ALUMINIUM ALLOYS; CRYSTAL FIELD; CUBIC LATTICES; ELASTICITY; EQUATIONS OF MOTION; EXCITATION; EXCITONS; FERROMAGNETISM; GREEN FUNCTION; GROUND STATES; INELASTIC SCATTERING; INTERACTIONS; INTERMETALLIC COMPOUNDS; MAGNETIC PROPERTIES; NEUTRONS; PARAMAGNETISM; PHONONS; PRASEODYMIUM ALLOYS; QUADRUPOLES; VIBRATIONAL STATES
Descriptors DEC
ALLOYS; BARYONS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFERENTIAL EQUATIONS; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EQUATIONS; EXCITED STATES; FERMIONS; FUNCTIONS; HADRONS; MAGNETISM; MECHANICAL PROPERTIES; MULTIPOLES; NUCLEONS; PHYSICAL PROPERTIES; QUASI PARTICLES; RARE EARTH ALLOYS; SCATTERING