Theoretical studies of the spin-Hamiltonian parameters and the effects of the temperature and pressure on the zero-field splitting for Ni2+: Zn(BF4)2·6H2O crystal

2007 ◽  
Vol 387 (1-2) ◽  
pp. 52-55 ◽  
Author(s):  
Wen-Lin Feng ◽  
Wen-Chen Zheng ◽  
Xiao-Xuan Wu ◽  
Hong-Gang Liu
Keyword(s):  
Zero Field ◽  
Theoretical Studies ◽  
Spin Hamiltonian ◽  
Zero Field Splitting ◽  
Field Splitting ◽  
Temperature And Pressure ◽  
Hamiltonian Parameters

scholarly journals Purely Spectroscopic Determination of the Spin Hamiltonian Parameters in High-Spin Six-Coordinated Cobalt(II) Complexes with Large Zero-Field Splitting

2019 ◽  
Vol 58 (24) ◽  
pp. 16434-16444 ◽  
Author(s):  
Eugenii Ya. Misochko ◽  
Alexander V. Akimov ◽  
Denis V. Korchagin ◽  
Joscha Nehrkorn ◽  
Mykhaylo Ozerov ◽  
...  
Keyword(s):  
High Spin ◽  
Spectroscopic Determination ◽  
Zero Field ◽  
Spin Hamiltonian ◽  
Zero Field Splitting ◽  
Field Splitting ◽  
Hamiltonian Parameters

ESR SPECTRUM OF Fe+3 IN TOPAZ: I. FINE STRUCTURE

1967 ◽  
Vol 45 (11) ◽  
pp. 3597-3610 ◽  
Author(s):  
J. R. Thyer ◽  
S. M. Quick ◽  
F. Holuj
Keyword(s):  
Fine Structure ◽  
Zero Field ◽  
Spin Hamiltonian ◽  
Zero Field Splitting ◽  
Field Splitting ◽  
Esr Spectrum ◽  
Hamiltonian Parameters ◽  
Near Future ◽  
K Band

ESR spectrum of Fe+3 in topaz (Al2SiO4F2) has been investigated at X- and K-band frequencies. The spectrum, in addition to large zero-field splitting, also shows well-resolved h.f.s. due to 19F at some orientations. The spin-Hamiltonian parameters, which include b21 and b41, are given in the text. The spectrum has been interpreted to originate from Fe+3 impurity located at Al+3 sites. The implications of these results are considered briefly. The results of the analysis of the h.f.s. are to be published in the near future.

Spin-Hamiltonian parameters and zero-field splitting of impurity Gd3+ ions in SrY2O4 crystal

2019 ◽  
Vol 469 ◽  
pp. 638-642 ◽  
Author(s):  
B.F. Gabbasov ◽  
D.G. Zverev ◽  
I.F. Gilmutdinov ◽  
R.G. Batulin ◽  
A.G. Kiiamov ◽  
...  
Keyword(s):  
Zero Field ◽  
Spin Hamiltonian ◽  
Zero Field Splitting ◽  
Field Splitting ◽  
Hamiltonian Parameters

Anisotropic Exchange Effects in Temperature and Pressure Dependences of EPR Zero-Field Splitting in [(C6H5)3(n-propyl)P]2Cu2Cl6

1996 ◽  
Vol 35 (5) ◽  
pp. 1148-1153 ◽  
Author(s):  
D. Gatteschi ◽  
J. Goslar ◽  
W. Hilczer ◽  
S. K. Hoffmann ◽  
C. Zanchini
Keyword(s):  
Zero Field ◽  
Zero Field Splitting ◽  
Field Splitting ◽  
Exchange Effects ◽  
Anisotropic Exchange ◽  
Temperature And Pressure

EPR Study of the Nitrogen Containing Defect Center Created in Self-Assembled 6H SiC Nanostructure

2013 ◽  
Vol 740-742 ◽  
pp. 389-392 ◽  
Author(s):  
Ekaterina N. Kalabukhova ◽  
Dariya Savchenko ◽  
Bela Shanina ◽  
Nikolai T. Bagraev ◽  
Leonid Klyachkin ◽  
...  
Keyword(s):  
The Self ◽  
Zero Field ◽  
Boron Diffusion ◽  
Spin Hamiltonian ◽  
Zero Field Splitting ◽  
Epr Spectrum ◽  
Defect Center ◽  
Field Splitting ◽  
Splitting Constant ◽  
Self Assembled

Triplet center with spin state S = 1 is detected in the EPR spectrum of the self-assembled 6H SiC nanostructure obtained by non-equilibrium boron diffusion into the n-type 6H SiC epitaxial layer (EL) under conditions of the controlled injection of the silicon vacancies at the temperature of T = 900°C. From the analysis of the angular dependences of the EPR spectrum and the numerical diagonalization of the spin Hamiltonian, the value of the zero-field splitting constant D and g-factor are found to be D = 1140•10-4см-1 and gpar = 1.9700, gper = 1.9964. Based on the hyperfine (hf) structure of the defect originating from the hf interaction with one 14N nuclei, the large value of the zero-field splitting constant D and technological conditions of the boron diffusion into the n-type 6H SiC EL, the triplet center is tentatively assigned to the defect center consisting of nitrogen atom and silicon vacancy.

ESR SPECTRA OF Fe+3 IN SINGLE CRYSTALS OF ANDALUSITE

1966 ◽  
Vol 44 (3) ◽  
pp. 509-523 ◽  
Author(s):  
F. Holuj ◽  
J. R. Thyer ◽  
N. E. Hedgecock
Keyword(s):  
Single Crystals ◽  
Room Temperature ◽  
Esr Spectra ◽  
Zero Field ◽  
Spin Hamiltonian ◽  
Zero Field Splitting ◽  
Field Splitting ◽  
K Band

ESR spectra of Fe+3 in andalusite have been investigated at X- and K-band frequencies at room temperature. They have been interpreted on the assumption that Fe+3 occupies the two inequivalent Al+3 sites in andalusite. The spectra show large zero-field splitting. The constants of the conventional orthorhombic spin Hamiltonian which fit the spectra are as follows: for site I: b20 = 15.0 ± 0.1 kG, b22 = 5.0 ± 0.1 kG, and isotropic g = 2.001 ± 0.002; for site II: b20 = 20.1 ± 0.1 kG, b22 = 0.075 ± 0.010 kG, and isotropic g = 2.004 ± 0.0005. A study of the intensities of ESR signals due to site I follow a pattern predicted by theory. The implications of these results are considered briefly.

ELECTRON SPIN RESONANCE OF Fe+3 IN CORDIERITE

1966 ◽  
Vol 44 (11) ◽  
pp. 2749-2755 ◽  
Author(s):  
N. E. Hedgecock ◽  
S. C. Chakravartty
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Room Temperature ◽  
Esr Spectra ◽  
Orthorhombic Symmetry ◽  
Zero Field ◽  
Spin Hamiltonian ◽  
Zero Field Splitting ◽  
Field Splitting ◽  
Spin Resonance

ESR spectra of Fe+3 located at one of the aluminium sites in cordierite have been investigated at X- and K-band frequencies at room temperature. The spectra exhibit large zero-field splitting and have been fitted to a spin Hamiltonian of orthorhombic symmetry, having constants b20 = 14.6 ± 0.1 kG, b22 = 8.5 ± 0.1 kG, and isotropic g = 2.004 ± 0.002.

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