Published 2009 | Version v1
Journal article Metadata-only

Electron spin resonance in GdI2Hx

Creators

  • 1. Experimentalphysik V, Elektronische Korrelationen und Magnetismus, Universitaet Augsburg, 86135 Augsburg (Germany)
  • 2. Max-Planck Institut fuer Festkoerperforschung, Heisenbergstrasse 1, 70569 Stuttgart (Germany)

Description

The spin dynamics of hydrogen-doped GdI2Hx (0 ≤x ≤1) have been investigated by electron spin resonance (ESR) spectroscopy. With rising hydrogen concentration the lattice constants of the hexagonal layered structure change: a decreases and c increases. Furthermore, the ferromagnetic Curie temperature TC, which for pristine GdI2 lies at approximately 290 K, decreases and the system exhibits a spin-glass-like state for x > 0.33. For higher H concentrations the system remains paramagnetic down to 4 K. From the ESR intensity we can estimate the dominant exchange coupling constant within the Gd layers for x < 0.33 using the model for the spin susceptibility proposed by Eremin et al.

Additional details

Identifiers

URL
http://www.dpg-verhandlungen.de;

Publishing Information

Journal Title
Verhandlungen der Deutschen Physikalischen Gesellschaft
Journal Issue
Dresden 2009 issue
Series
Also available as printed version: Verhandlungen der Deutschen Physikalischen Gesellschaft v. 44(5)
Journal Page Range
[1 p.]
ISSN
0420-0195
CODEN
VDPEAZ

Conference

Title
DPG Spring meeting 2009 of the condensed matter section with the divisions biological physics, chemical and polymer physics, dielectric solids, dynamics and statistical physics, low temperature physics, magnetism, metal and material physics, semiconductor physics, surface science, thin films, vacuum science and technology as well as the working groups industry and business, physics of socio-economic systems
Dates
22-27 Mar 2009
Place
Dresden (Germany)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
41043577
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CHEMICAL COMPOSITION; COUPLING CONSTANTS; ELECTRON SPIN RESONANCE; EXCHANGE INTERACTIONS; GADOLINIUM HYDRIDES; GADOLINIUM IODIDES; HEXAGONAL LATTICES; LAYERS; MAGNETIC SUSCEPTIBILITY; SPIN ORIENTATION
Descriptors DEC
CRYSTAL LATTICES; CRYSTAL STRUCTURE; GADOLINIUM COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; HYDRIDES; HYDROGEN COMPOUNDS; INTERACTIONS; IODIDES; IODINE COMPOUNDS; MAGNETIC PROPERTIES; MAGNETIC RESONANCE; ORIENTATION; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; RESONANCE

Optional Information

Notes
Session: TT 16.2 Di 09:45; No further information available