Calculation of the g Factors and Local Angular Distortions for ZnO:Cu2+ Nanocrystals With Various Copper Concentrations

Li, G.-L.; Wu, Shao-Yi; Hu, Xian Fen; Teng, Bin; Wu, Man

doi:10.1007/s10812-016-0297-y

Cited by 1 publication

(2 citation statements)

References 27 publications

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“…Due to the Jahn-Teller effect, it is difficult to locate the regular octahedral position in xCuO À ð68 À xÞV 2 O 5 À 32TeO 2 (x = 5, 10, 20, 30 mol%) glasses and tends to exhibit tetragonal elongation distortion. Firstly, this paper refers to CF parameter D q and average covalence factor N (0.76-0.92 < 1 [51][52][53][54] ) of Cu 2þ in the literature and adjusts relative elongation to fit g factors. It can be seen from Figures 3 and 4 that except that x = 10 mol% CuO, D q decreases with increasing x and N increases with increasing x. Secondly, κ and H are adjusted to fit the hyperfine structure constants.…”

Section: Discussionmentioning

confidence: 99%

“…In order to account for the effect of these valence states on the structure and properties of these glasses, it is of great significance to control and measure the ratios of the TM ion concentration in the different valence states of these oxide glasses and study the local structure and the EPR spectrum of CVT glasses. Due to the Jahn–Teller effect, it is difficult to locate the regular octahedral position in

x normalCuO - false(68 - x false) V_{2} O_{5} - 32 {TeO}_{2}

(

x

= 5, 10, 20, 30 mol%) glasses and tends to exhibit tetragonal elongation distortion. Firstly, this paper refers to CF parameter

D_{q}

and average covalence factor

N

(0.76‐0.92 < 1 [ 51–54 ] ) of

{Cu}^{2 +}

in the literature and adjusts relative elongation to fit

g

factors. It can be seen from Figures 3 and 4 that except that

x

= 10 mol% CuO,

D_{q}

decreases with increasing

x

and

N

increases with increasing

x

.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Investigations on the local structure and the spin Hamiltonian parameters for Cu²⁺ in xCuO−(68−x)V₂O₅−32TeO₂ glasses

Liu

Yang

et al. 2022

Magnetic Reson in Chemistry

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The defect structure, spin Hamiltonian parameters (SHPs: anisotropic g factors g k and g ⊥ and the hyperfine structure constants A k and A ⊥ ), and their compositional dependence of Cu 2þ in xCuO À ð68 À xÞV 2 O 5 À 32TeO 2 (x = 5, 10, 20, 30 mol%) glasses are quantitatively analyzed by using the higher-order perturbation formula of octahedral complex with tetrahedral elongation distortion. Due to the Jahn-Teller effect, the ½CuO 6 10À group is subjected to tetragonal elongation distortion of varying degrees. D q , N, ρ, κ, and H show nonlinear changes with the concentrations of Cu 2þ . When x = 10 mol% CuO, the degree of distortion (ρ ≈ 0:1%) is the smallest; when x = 30 mol% CuO, the degree of distortion (ρ ≈ 15%) is the largest, which indicates that excessive distortion leads to the appearance of Z-axis oxygen vacancies and the coordination number of copper ions from six to four. The increasing tendency of the evaluated N and H reveals decreasing covalency of the whole glass system. Present theoretical studies would be useful to the explore the structural properties and optical applications of glass with different CuO concentrations. K E Y W O R D Selectron paramagnetic resonance, local structure, xCuO À ð68 À xÞV 2 O 5 À 32TeO 2 (x = 5, 10, 20, 30 mol%)

show abstract

Section: Discussionmentioning

confidence: 99%

x normalCuO - false(68 - x false) V_{2} O_{5} - 32 {TeO}_{2}

(

x

= 5, 10, 20, 30 mol%) glasses and tends to exhibit tetragonal elongation distortion. Firstly, this paper refers to CF parameter

D_{q}

and average covalence factor

N

(0.76‐0.92 < 1 [ 51–54 ] ) of

{Cu}^{2 +}

in the literature and adjusts relative elongation to fit

g

factors. It can be seen from Figures 3 and 4 that except that

x

= 10 mol% CuO,

D_{q}

decreases with increasing

x

and

N

increases with increasing

x

.…”

Section: Discussionmentioning

confidence: 99%

Investigations on the local structure and the spin Hamiltonian parameters for Cu²⁺ in xCuO−(68−x)V₂O₅−32TeO₂ glasses

Liu

Yang

et al. 2022

Magnetic Reson in Chemistry

View full text Add to dashboard Cite

show abstract

Calculation of the g Factors and Local Angular Distortions for ZnO:Cu2+ Nanocrystals With Various Copper Concentrations

Cited by 1 publication

References 27 publications

Investigations on the local structure and the spin Hamiltonian parameters for Cu²⁺ in xCuO−(68−x)V₂O₅−32TeO₂ glasses

Investigations on the local structure and the spin Hamiltonian parameters for Cu²⁺ in xCuO−(68−x)V₂O₅−32TeO₂ glasses

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Calculation of the g Factors and Local Angular Distortions for ZnO:Cu2+ Nanocrystals With Various Copper Concentrations

Cited by 1 publication

References 27 publications

Investigations on the local structure and the spin Hamiltonian parameters for Cu2+ in xCuO−(68−x)V2O5−32TeO2 glasses

Investigations on the local structure and the spin Hamiltonian parameters for Cu2+ in xCuO−(68−x)V2O5−32TeO2 glasses

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Product

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Investigations on the local structure and the spin Hamiltonian parameters for Cu²⁺ in xCuO−(68−x)V₂O₅−32TeO₂ glasses

Investigations on the local structure and the spin Hamiltonian parameters for Cu²⁺ in xCuO−(68−x)V₂O₅−32TeO₂ glasses