Published 1975
| Version v1
Report
Open
Tunneling reorientation and stress and electric field induced alignment of the V- center in MgO
Description
Stress and electric field induced alignments of the V- center in MgO were measured in the range 2.1 to 77K by observing the changes in intensity of the ESR lines. A preferential alignment is produced parallel to the applied stress or electric field, showing that the defect reorientates between the different distorted configurations even at liquid helium temperature. The elastic dipole moment μ and the electric dipole moment p were measured at 77K for stresses up to 1500kg/cm2 and fields up to 200kV.cm-1: μ=(9.6+-0.4)10-3K kg-1cm2 and p=(3.7+-0.1)10-4K V-1cm, that is p=3.2+-0.1eA (symbol A is for Angstroems)
Availability note (English)
MF available from INIS under the Report Number.Abstract (French)
On a mesure les alignements du centre V- induits par contrainte ou champ electrique dans MgO entre 2,1 et 77K, en observant les changements d'intensite des raies RPE. Un alignement preferentiel se produit parallelement a la contrainte ou au champ electrique applique, ce qui montre que le defaut se reoriente entre les differentes configurations deformees, meme a la temperature de l'helium liquide. Le moment dipolaire elastique μ et le moment dipolaire electrique p ont ete mesures a 77K pour des contraintes atteignant 1500kg/cm2 et des champs allant jusqu'a 200kV cm-1: μ=(9,6+-0,4)10-3K kg-1cm2 et p=(3,7+-0,1)10-4K V-1cm, ce qui equivaut a p=3,2+-0,1eA (A symbole de l'angstroem)Files
8279799.pdf
Files
(193.2 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:7c6992a60796c6cd275b682999159164
|
193.2 kB | Preview Download |
Additional details
Publishing Information
- Imprint Pagination
- 4 p.
- Report number
- CEA-CONF--3544
Conference
- Title
- Workshop on defects in magnesium oxide and related materials.
- Dates
- 26 May 1975.
- Place
- Canton, N.C., USA.
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 8279799
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ELECTRON SPIN RESONANCE; MAGNESIUM OXIDES; ULTRALOW TEMPERATURE; V CENTERS; VERY LOW TEMPERATURE
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COLOR CENTERS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; MAGNESIUM COMPOUNDS; MAGNETIC RESONANCE; OXIDES; OXYGEN COMPOUNDS; POINT DEFECTS; RESONANCE; VACANCIES