Published September 2009 | Version v1
Journal article Metadata-only

An investigation on magnetism, spin-phonon coupling, and ferroelectricity in multiferroic GdMn2O5

Creators

  • 1. Nanjing University, Nanjing National Laboratory of Microstructure, Nanjing (China)
  • 2. Peking University, Electron Microscopy Laboratory, Beijing (China)
  • 3. South China Normal University, School of Physics, Guangzhou (China)
  • 4. Chinese Academy of Sciences, International Center for Materials Physics, Shenyang (China)

Description

The magnetization, Raman spectroscopy, and ferroelectricity of multiferroic GdMn2O5 as a function of temperature and magnetic field are investigated. The complicated magnetic transitions at low temperatures are featured with anomalous Raman mode shifts, dielectric response, and ferroelectricity generation, indicating the significant spin-phonon coupling. It is argued that this coupling is possibly responsible for the electrical polarization generation associated with the incommensurate-commensurate transition. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1007/s00339-009-5133-2

Additional details

Identifiers

DOI
10.1007/s00339-009-5133-2;

Publishing Information

Journal Title
Applied Physics. A, Materials Science and Processing
Journal Volume
96
Journal Issue
4
Journal Page Range
p. 991-996
ISSN
0947-8396
CODEN
APAMFC

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
40090119
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
COUPLING; EXPERIMENTAL DATA; FERROELECTRIC MATERIALS; GADOLINIUM OXIDES; KHZ RANGE 100-1000; MAGNETIC FIELDS; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; MANGANESE OXIDES; MHZ RANGE 01-100; PERMITTIVITY; PHASE TRANSFORMATIONS; PHONONS; RAMAN SPECTRA; SPECTRAL SHIFT; SPIN ORIENTATION; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0000-0013 K; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K
Descriptors DEC
CHALCOGENIDES; DATA; DIELECTRIC MATERIALS; DIELECTRIC PROPERTIES; ELECTRICAL PROPERTIES; FREQUENCY RANGE; GADOLINIUM COMPOUNDS; INFORMATION; KHZ RANGE; MAGNETIC PROPERTIES; MANGANESE COMPOUNDS; MATERIALS; MHZ RANGE; NUMERICAL DATA; ORIENTATION; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; QUASI PARTICLES; RARE EARTH COMPOUNDS; SPECTRA; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS