Published March 2007
| Version v1
Journal article
Electron spin resonance study of the local environment for the Gd3+ and Eu2+ ions in Ca1-xRxB6(R=Gd,Eu)(0.0001=<x=<0.30)
Creators
- 1. Instituto de Fisica 'Gleb Wataghin', UNICAMP, Campinas-SP 13083-970 (Brazil)
- 2. Department of Physics, Florida State University, Tallahassee, FL 32306 (United States)
- 3. UC Davis, Physics Department, CA 95616 (United States)
- 4. San Diego State University, San Diego, CA 92182 (United States)
Description
The environment of Gd3+/Eu2+(4f7,S=72) in Ca1-xRxB6(R=Gd,Eu;0.0001=<x=<0.30) is studied by electron spin resonance (ESR). For x < or approx. 0.001 the spectra show Lorentzian shape (insulating phase). As x increases, the spectra present a superposition of Lorentzian and Dysonian resonances (coexistence of insulating and metallic phases). For x < or approx. 0.01, the line shape becomes pure Dysonian (metallic phase). Thus, the intermediate concentration regime of Ca1-xRxB6 is intrinsically inhomogeneous. These compounds show no weak ferromagnetism
Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2006.10.1103;
- PII
- S0304-8853(06)02260-8;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 310
- Journal Issue
- 2
- Journal Page Range
- p. 864-866
- ISSN
- 0304-8853
- CODEN
- JMMMDC
Conference
- Title
- 17. international conference on magnetism
- Dates
- 20-25 Aug 2006
- Place
- Kyoto (Japan)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39022479
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CALCIUM COMPOUNDS; ELECTRON SPIN RESONANCE; EUROPIUM COMPOUNDS; EUROPIUM IONS; FERROMAGNETISM; GADOLINIUM COMPOUNDS; GADOLINIUM IONS; SHAPE; SPECTRA
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHARGED PARTICLES; IONS; MAGNETIC RESONANCE; MAGNETISM; RARE EARTH COMPOUNDS; RESONANCE
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.