Cross sections for non-Rutherford backscattering of 4He from five light elements

Huansheng, Cheng; Shen, Hao; Yang, Fujia; Tang, Jiayong

doi:10.1016/0168-583x(94)95783-5

Cited by 35 publications

(20 citation statements)

References 7 publications

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“…The authors of Ref. [9] obtained quite different results from those used in Ref. [6] for many levels (see Table I); in particular, the broad 0 + 4 and 2 + 4 levels appeared even broader.…”

Section: Introductionmentioning

confidence: 67%

“…angle and illustrates the differences in the fits due to different parameters of the broad 0 resonances used in the present R-matrix fit are summarized in Table I together with the adopted data [6]. Data of the last R-matrix analysis [9] are also given in Table I. The analysis [9] resulted in level parameters which are often different from the adopted ones.…”

Section: Resultsmentioning

confidence: 99%

“…Data of the last R-matrix analysis [9] are also given in Table I. The analysis [9] resulted in level parameters which are often different from the adopted ones.…”

Section: Resultsmentioning

confidence: 99%

“…The authors of Ref. [9] noted difficulties of the R-matrix fit in the region 6 − 8 MeV of excitation energies, which is mainly free from narrow resonances. Evidently strong alpha clustering states of over 1.0 MeV width influence a very broad excitation region (for instance, see [10]).…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, in this energy region the majority of adopted data on level properties [6] is based on resonance scattering work of 1960s. More recently the α + 16 O resonance scattering experiments were further improved to include backward angles and the resulting data were analyzed using R-matrix code Multi 6 [9]. The authors of Ref.…”

Section: Introductionmentioning

confidence: 99%

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Structure of Ne20 states in resonance O16+α elastic scattering

et al. 2017

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Background: The nuclear structure of the cluster bands in 20 Ne presents a challenge for many theoretical approaches. It is especially difficult to explain the broad 0 + and 2 + states, both at around 9 MeV excitation energy. More reliable experimental data for these levels is important for proper quantitative assessment and development of theoretical methods.Purpose: To obtain new data on 20 Ne α-cluster structure.Method: Thick target inverse kinematics technique was used to study the 16 O+α resonance elastic scattering and the data were analyzed using an R-matrix approach. The 20 Ne spectrum, the cluster and nucleon spectroscopic factors were calculated using cluster-nucleon configuration interaction model (CNCIM). Conclusions: Our experimental results obtained by the TTIK method generally confirm the adopted data on α cluster levels in 20 Ne. The CNCIM gives a good description of the 20 Ne positive parity states up to an excitation energy of ∼ 7 MeV, predicting reasonably well the excitation energy of the states and their cluster and single particle properties. At higher excitations, a qualitative disagreement with the experimentally observed structure is evident, especially for broad resonances.

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“…The authors of Ref. [9] obtained quite different results from those used in Ref. [6] for many levels (see Table I); in particular, the broad 0 + 4 and 2 + 4 levels appeared even broader.…”

Section: Introductionmentioning

confidence: 67%

Section: Resultsmentioning

confidence: 99%

“…Data of the last R-matrix analysis [9] are also given in Table I. The analysis [9] resulted in level parameters which are often different from the adopted ones.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Structure of Ne20 states in resonance O16+α elastic scattering

et al. 2017

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Designing Optimal Perovskite Structure for High Ionic Conduction

et al. 2019

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Solid‐oxide fuel/electrolyzer cells are limited by a dearth of electrolyte materials with low ohmic loss and an incomplete understanding of the structure–property relationships that would enable the rational design of better materials. Here, using epitaxial thin‐film growth, synchrotron radiation, impedance spectroscopy, and density‐functional theory, the impact of structural parameters (i.e., unit‐cell volume and octahedral rotations) on ionic conductivity is delineated in La0.9Sr0.1Ga0.95Mg0.05O3–δ. As compared to the zero‐strain state, compressive strain reduces the unit‐cell volume while maintaining large octahedral rotations, resulting in a strong reduction of ionic conductivity, while tensile strain increases the unit‐cell volume while quenching octahedral rotations, resulting in a negligible effect on the ionic conductivity. Calculations reveal that larger unit‐cell volumes and octahedral rotations decrease migration barriers and create low‐energy migration pathways, respectively. The desired combination of large unit‐cell volume and octahedral rotations is normally contraindicated, but through the creation of superlattice structures both expanded unit‐cell volume and large octahedral rotations are experimentally realized, which result in an enhancement of the ionic conductivity. All told, the potential to tune ionic conductivity with structure alone by a factor of ≈2.5 at around 600 °C is observed, which sheds new light on the rational design of ion‐conducting perovskite electrolytes.

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Introduction

Sukhoruchkin¹,

Soroko²

2004

Tables of Proton and Α-Particle Resonance Parameters. Part 1

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Cross sections for non-Rutherford backscattering of 4He from five light elements

Cited by 35 publications

References 7 publications

Structure of Ne20 states in resonance O16+α elastic scattering

Structure of Ne20 states in resonance O16+α elastic scattering

Designing Optimal Perovskite Structure for High Ionic Conduction

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