Published August 1996 | Version v1
Journal article Metadata-only

Antiferromagnetism of GdCoC2 and GdNiC2 intermetallics studied by magnetization measurement and 155Gd Moessbauer spectroscopy

Creators

  • 1. Tohoku Univ., Sendai (Japan). Inst. for Materials Research
  • 2. Tohoku Univ., Sendai (Japan). Dept. of Physics

Description

Magnetic properties of GdCoC2 and GdNiC2 are investigated by means of magnetization measurement of single crystals and 155Gd Moessbauer spectroscopy of powdered samples. GdCoC2 is an antiferromagnet below TN=15.6 K and shows an order-order transition at Tt=14.0 K. The measurements of 155Gd Moessbauer effect and magnetization process reveal that the Gd moments align noncollinearly by an angle of 48 from the a-axis in the c-plane. GdNiC2 is an antiferromagnet below TN=20.0 K. The Gd moments align noncollinearly by angles of 18 from the c-axis and 45 from the a-axis in the c-plane. By the 155Gd Moessbauer measurements, crystal field parameters are derived to be A20=-498 K/a02 in GdCoC2 and A20=277 K/a02 in GdNiC2. (orig.)

Additional details

Publishing Information

Journal Title
Journal of Magnetism and Magnetic Materials
Journal Volume
161
Journal Page Range
p. 255-264.
ISSN
0304-8853
CODEN
JMMMDC

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
28012349
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ANTIFERROMAGNETIC MATERIALS; COBALT CARBIDES; CRYSTAL FIELD; CURIE POINT; GADOLINIUM CARBIDES; ISOMER SHIFT; LATTICE PARAMETERS; MAGNETIC MOMENTS; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; MOESSBAUER EFFECT; MONOCRYSTALS; NEEL TEMPERATURE; NICKEL CARBIDES; PHASE TRANSFORMATIONS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0000-0013 K; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K; X-RAY DIFFRACTION
Descriptors DEC
CARBIDES; CARBON COMPOUNDS; COBALT COMPOUNDS; COHERENT SCATTERING; CRYSTALS; DIFFRACTION; GADOLINIUM COMPOUNDS; MAGNETIC MATERIALS; MAGNETIC PROPERTIES; MATERIALS; NICKEL COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SCATTERING; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE