• Keine Ergebnisse gefunden

Investigation of the EPR Parameters and Defect Structure of Ni2+ Ions in RbMgF3

N/A
N/A
Info
Herunterladen
Protected

Academic year: 2022

Aktie "Investigation of the EPR Parameters and Defect Structure of Ni2+ Ions in RbMgF3"

Copied!
1
0
0

Wird geladen.... (Jetzt Volltext ansehen)

Jetzt herunterladen ( 1 Seite )

Volltext

(1)

Investigation of the EPR Parameters and Defect Structure of Ni

2+

Ions in RbMgF

3

Crystals

Tai-Hong Chena, Wen-Lin Fengb,c, and Jin-Ping Zhanga

aDepartment of Physics and Electronic Information, China West Normal University, Nanchong 637002, P. R. China

bDepartment of Applied Physics, Chongqing Institute of Technology, Chongqing 400050, P. R. China

cDepartment of Material Science, Sichuan University, Chengdu 610064, P. R. China

Reprint requests to W.-L. F.; E-mail: wenlinfeng@126.com Z. Naturforsch.62a,221 – 223 (2007);

received October 20, 2006

By meansof the complete energy matrix diagonaliza- tion procedure of 3d2/3d8ionsin trigonal symmetry and us- ing the superposition model, the electron paramagnetic res- onance (EPR) parametersfor Ni2+ionsin RbMgF3crystals withC3v andD3d symmetry are studied. From the investi- gation, the defect structures of these paramagnetic impurity centersare obtained and the EPR parametersare explained reasonably. – PACS numbers: 76.30.Fc, 61.72.Bb, 71.70.Ch Key words:EPR Parameters; Defect Structure; Crystal-

Field Theory; RbMgF3:Ni2+Crystals.

3

Referenzen

Jetzt herunterladen ( PDF - 1 Seite - 27.39 KB )

ÄHNLICHE DOKUMENTE

Investigation of the EPR Parameters of a Trigonal Dy

In these for- mulas, the J-mixing among the 6 H J (J = 15/2, 13/2 and 11/2) states via crystal-field interactions, the mixtures of the states with the same J-value via

Investigation of the EPR Parameters of a Trigonal Dy

In these for- mulas, the J-mixing among the 6 H J (J = 15/2, 13/2 and 11/2) states via crystal-field interactions, the mixtures of the states with the same J-value via

Theoretical Studies of the EPR Parameters and the Local Structure of the Tetragonal Fe

The EPR parameters (zero-field splitting D and g factors g and g ⊥ ) and the local structure for the tetragonal Fe + center in KTaO 3 are theoretically studied by using

Investigation of the EPR Parameters of an Orthorhombic Cu

a Institute of Applied Physics and College of Electronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065,

Investigation of the EPR Parameters of an Orthorhombic Cu

Substituting these parameters into the above formu- las and diagonalizing the complete energy matrix, the anisotropic g-factors for Cu 2+ and the hyperfine struc- ture constants A

Studies of the EPR Parameters and the Local Tetragonal Distortion of V

It is found that the oxygen octahedron sur- rounding the impurity ion V 4 + changes from elongation along the tetragonal axis in the pure crystal to compression and the magnitude

Studies of the EPR Parameters and the Local Tetragonal Distortion of V

Noteworthy, for the 3d 1 ions Ti 3+ and Cr 5+ in the tetragonal phase of SrTiO 3 [28, 29], since ¯ R > R ⊥ , the ground state is an orbital doublet, an additional distortion due

Theoretical Studies of the EPR Parameters of Nd

2) Based on the calculations, we find that the con- tributions to g or A due to the second-order pertur- bation terms amount to about 9 ∼ 10% of those due to the