Single-crystal and powder electron-nuclear double resonance of RbCl:O2−: A comparison between the spin Hamiltonian parameters obtained from both experiments

1995 ◽  
Vol 51 (18) ◽  
pp. 12480-12490 ◽  
Author(s):  
S. Van Doorslaer ◽  
F. Callens ◽  
F. Maes ◽  
E. Boesman
Keyword(s):  
Single Crystal ◽  
Double Resonance ◽  
Spin Hamiltonian ◽  
Electron Nuclear Double Resonance ◽  
Hamiltonian Parameters

Electron nuclear double resonance of the cubic Dy3+ center in the KZnF3 single crystal

1998 ◽  
Vol 14 (4) ◽  
pp. 427-434 ◽  
Author(s):  
M. L. Falin ◽  
V. A. Latypov ◽  
H. Bill ◽  
D. Lovy
Keyword(s):  
Single Crystal ◽  
Double Resonance ◽  
Electron Nuclear Double Resonance

EPR Studies of VO2+ in Ba(ClO4) 2 ・3H2O Single Crystals

1997 ◽  
Vol 52 (12) ◽  
pp. 849-854 ◽  
Author(s):  
Metin Yavuz ◽  
Hüseyin Kalkan ◽  
Ahmet Bulut ◽  
Şehriman Atalay ◽  
Emin Öztekin
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Single Crystal ◽  
Single Crystals ◽  
Axial Symmetry ◽  
Powder Sample ◽  
Spin Hamiltonian ◽  
Paramagnetic Resonance ◽  
Vanadyl Ion ◽  
Hamiltonian Parameters ◽  
Electron Paramagnetic

The results of an electron paramagnetic resonance (EPR) study of vanadyl ion VO2+ doped in single crystals of Ba(ClO4)2 - 3 H2O are reported. The spectra indicated the presence of two substitutional and interstitial sites depending on the orientation. The spin-Hamiltonian parameters were determined from single crystal and powder EPR data. These parameters were found to be axial symmetric for the powder sample, whereas they showed deviations from axial symmetry for the single crystal

Single-crystal electron nuclear double resonance studies of silver(II) and copper(II) tetraphenylporphyrins

1977 ◽  
Vol 16 (6) ◽  
pp. 1563-1565 ◽  
Author(s):  
Theodore G. Brown ◽  
Jeffrey L. Petersen ◽  
George P. Lozos ◽  
James R. Anderson ◽  
Brian M. Hoffman
Keyword(s):  
Single Crystal ◽  
Double Resonance ◽  
Electron Nuclear Double Resonance ◽  
Crystal Electron

Electron nuclear double resonance of the divalent europium ion

1962 ◽  
Vol 267 (1329) ◽  
pp. 283-294 ◽  
Keyword(s):  
Resonance Spectrum ◽  
Double Resonance ◽  
Spin Hamiltonian ◽  
Electron Nuclear Double Resonance ◽  
Europium Ion ◽  
Divalent Europium ◽  
Higher Order Terms ◽  
Measured Line ◽  
G Value ◽  
Line Positions

The electron nuclear double resonance spectrum of both isotopes 151 Eu and 163 Eu has been measured in a single crystal of calcium fluoride containing about 0.01 % Eu 2+ . As the lines were narrow ( ~ 10kc/s) the hyperfine structure parameter and the nuclear g-value were measured to high precision giving the following values: A 151 = -102.9069±0.0013 Mc/s, A 153 = -45.6730±0.0025 Mc/s B 151 = -0.7855±0.0052 Mc/s, B 153 = -2.0294 ±0.0068 Mc/s, gI 151 = - 7.4969±0.0020 (x 10 -4 )β, gI 153 = - 3.3125±0.0030 (x 10 -4 )β. In order to fit the measured line positions to the spin Hamiltonian which is usually assumed for the system it was necessary to add small higher-order terms. The results of these measurements are compared with the precise atomic beam measurement on Eu.

Epr Spectra of VO2+ Doped in Na2C4H4O6 Single Crystals

2004 ◽  
Vol 59 (10) ◽  
pp. 669-673
Author(s):  
B. Karabulut ◽  
R. Tapramaz ◽  
F. Köksal
Keyword(s):  
Single Crystal ◽  
Single Crystals ◽  
Room Temperature ◽  
Epr Spectra ◽  
Spin Hamiltonian ◽  
Axially Symmetric ◽  
Angular Variation ◽  
Sodium Tartrate ◽  
Hamiltonian Parameters

EPR spectra of VO2+ ions in di-sodium tartrate, [Na2C4H4O6], single crystal and powder spectra have been studied at room temperature. The angular variation of the EPR spectra has shown that three different VO2+ complexes are located in different chemical environments, and each environment contains two magnetically inequvalent sites. The spin Hamiltonian parameters are determined, and these parameters have been used to assess the bonding coefficients of the VO2+ ion in the di-sodium tartrate lattice. The parallel and perpendicular components of axially symmetric g and hyperfine tensors are evaluated. The results are discussed.

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