Temperature Dependence of 35Cl NQR in Sodium Chlorate

Utton, D.B.

doi:10.1063/1.1674857

Cited by 8 publications

(6 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Recent papers by Utton [4,10] have incorporated the temperature dependence of the Einstein temperatures as a second order effect: more involved temperature dependences for the 8 s have been invoked by other workers [11].…”

Section: Introductionmentioning

confidence: 99%

“…Na35C103 : an illustrative calculation using v( T)e over the low temperature region Early work [13] on Na35C103 interpreted the temperature variation of the n.q.r. frequency in terms of a ' one-theta' model : Utton has obtained precise v(T)p data for both K3sC103 [4] and NaasCIO3 [10] which have been interpreted on the basis of ' two-theta' models with a temperature dependence in 0j of the form (1 + ~sT2). The two stage least-squares process used [4] also yielded values for the inertia factor, .4j : these are consistent with the geometry of the anion.…”

Section: Introductionmentioning

confidence: 99%

“…The two stage least-squares process used [4] also yielded values for the inertia factor, .4j : these are consistent with the geometry of the anion. The values derived [10] for Na35CIO3, 427.0 x 10 -47 and 43.8 x 10 -47 kg m 2, corresponding to the 85.5 and 181 K modes respectively, were used in an illustrative NewtonRaphson calculation in the markedly non-linear low-temperature region using a simple ' two-theta ' model. The results of this calculation with %.…”

Section: Introductionmentioning

confidence: 99%

“…Research Notes specific algebraic properties of the modified form of (1), due to Utton, [4,10] in which both 0j terms in the summation are replaced by Oj. (1 + ~iTk~), to derive the matrix elements, ~kq (~).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Direct numerical analysis of the temperature dependence of nuclear quadrupole resonance frequencies

Smith

Temme

1972

Molecular Physics

View full text Add to dashboard Cite

INTRODUCTIONThere have been a number of publications [1][2][3][4][5] dealing with the temperature variation of nuclear quadrupole resonance frequencies in terms of the well-known Bayer-Kushida expression [6][7][8]. The derivation of the Einstein temperature, 0r, for the torsional modes in the solid state have generally involved two-stage trialand-error calculations. We wish to point out that as the Bayer-Kushida expression may be differentiated with respect to each of the variables, namely v 0 and 0j in the simple case, a direct approach to the numerical analysis of v(T)n.q.r" data is possible as long as the associated inertia factors are known.Benedek [1] has discussed the importance of the volume dependence in fitting constant pressure data to the Bayer-Kushida expression, although recent results reported by Early et al. [9] for sodium bromate show that its effect may be small. Recent papers by Utton [4,10] have incorporated the temperature dependence of the Einstein temperatures as a second order effect: more involved temperature dependences for the 8 s have been invoked by other workers [11].For constant pressure data, we use a more consistent approach in which the orders of the temperature dependence of the modes are taken as iterative variables ; we neglect any wave vector dependence of the 0 r. The form of the Bayer-Kushida expression indicates that precise Oj. values for]'> 1 will only be obtained when results from the low temperature region are included in the analysis.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Direct numerical analysis of the temperature dependence of nuclear quadrupole resonance frequencies

Smith

Temme

1972

Molecular Physics

View full text Add to dashboard Cite

show abstract

“…Os métodos mais usuais de medida das economias de escala residem na comparação da lucratividade de unidades produtoras de tamanhcs diferentes, estudo do custo médio como função do tamanho, testes de sobrevivência e estimativas de um ponto de vista técnico,atra vês de entrevistas com os engenheiros das empresas. Por exemplo, Scherer (1971( ), Shepherd (1979.…”

unclassified