The effect of hydrogenation on the electrophysics and magnetic characteristics of dysprosium

IF 0.6 4区 物理与天体物理 Q4 PHYSICS, APPLIED Low Temperature Physics Pub Date : 2024-02-22 DOI:10.1063/10.0024323
V. I. Sokolenko, A. O. Chupikov, M. M. Pylypenko, M. B. Lazareva, O. Yu. Roskoshna
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Abstract

The effect of hydrogenation from the gas phase on the change in the character of the temperature dependence of the electrical resistivity ρ(T) in the range of 77–300 K and the temperatures of phase magnetic transformations (Curie temperature TC and Néel temperature TN) of dysprosium was studied. It follows from the experimental data and their analysis that, within the framework of the indirect exchange ideas, the decreases in TC, TN and the contribution to ρ(T) related to electron scattering in the paramagnetic phase are interrelated. It has been suggested that hydrogenation effects may be related to changes in microscopic parameters: a decrease in the density of states at the Fermi level, an increase in the Fermi energy, and a decrease in the effective mass of carriers and the s-f exchange parameter.
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氢化对镝的电物理和磁特性的影响
研究了气相氢化对镝的电阻率ρ(T)在 77-300 K 范围内的温度依赖性特征变化以及相磁转变温度(居里温度 TC 和奈尔温度 TN)的影响。从实验数据及其分析中可以看出,在间接交换思想的框架内,TC、TN 的降低与顺磁相中电子散射对 ρ(T) 的贡献是相互关联的。他们认为氢化效应可能与微观参数的变化有关:费米级状态密度的降低、费米能的增加、载流子有效质量和 s-f 交换参数的降低。
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来源期刊
Low Temperature Physics
Low Temperature Physics 物理-物理:应用
CiteScore
1.20
自引率
25.00%
发文量
138
审稿时长
3 months
期刊介绍: Guided by an international editorial board, Low Temperature Physics (LTP) communicates the results of important experimental and theoretical studies conducted at low temperatures. LTP offers key work in such areas as superconductivity, magnetism, lattice dynamics, quantum liquids and crystals, cryocrystals, low-dimensional and disordered systems, electronic properties of normal metals and alloys, and critical phenomena. The journal publishes original articles on new experimental and theoretical results as well as review articles, brief communications, memoirs, and biographies. Low Temperature Physics, a translation of the copyrighted Journal FIZIKA NIZKIKH TEMPERATUR, is a monthly journal containing English reports of current research in the field of the low temperature physics. The translation began with the 1975 issues. One volume is published annually beginning with the January issues.
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