第5族过渡金属间隙的内摩擦：测量解释的平均场模型

IF 2.8 3区物理与天体物理 Q2 PHYSICS, CONDENSED MATTER

Physica B-condensed Matter Pub Date : 2025-09-29 DOI:10.1016/j.physb.2025.417857

Paul Eyméoud , Philippe Maugis

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引用次数: 0

摘要

我们建立了一个平均场弹性模型，能够再现由于5族过渡金属中的C， N， O间隙引起的内摩擦峰。除跳频外，模型参数均由密度泛函理论计算得到。对于任何从机械光谱研究第5组过渡金属的实验人员，我们的平均场模型构成了一个现成的工具，能够从Snoek峰温度位置识别间隙溶质，并从Snoek峰高度量化它们的浓度。

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Internal friction of interstitials in group 5 transition metals: A mean-field model for measurements interpretation

We have built a mean-field elastic model able to reproduce internal friction peaks due to C, N, O interstitials in group 5 transition metals. Parameters of this model have all been computed from Density Functional Theory, except for jump frequencies that have been fitted on experimental data. For any experimentalist studying group 5 transition metals from mechanical spectroscopy, our mean-field model constitutes a ready-to-use tool, able to identify interstitial solutes from Snoek peaks temperature positions, and quantify their concentrations from Snoek peaks heights.

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来源期刊

Physica B-condensed Matter 物理-物理：凝聚态物理

CiteScore

4.90

自引率

7.10%

发文量

703

审稿时长

44 days

期刊介绍： Physica B: Condensed Matter comprises all condensed matter and material physics that involve theoretical, computational and experimental work. Papers should contain further developments and a proper discussion on the physics of experimental or theoretical results in one of the following areas: -Magnetism -Materials physics -Nanostructures and nanomaterials -Optics and optical materials -Quantum materials -Semiconductors -Strongly correlated systems -Superconductivity -Surfaces and interfaces