Short and long range ordering on dielectric relaxation of AgI doped glass-ceramic

IF 2.8 3区 物理与天体物理 Q2 PHYSICS, CONDENSED MATTER Physica B-condensed Matter Pub Date : 2024-10-11 DOI:10.1016/j.physb.2024.416557
Asmita Poddar , Prolay Halder , Madhab Roy , Sanjib Bhattacharya
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Abstract

The dielectric relaxation process of an amorphous glassy system, AgI - CdO -V2O5 -P2O5 - ZnO has been reported here. Electric modulus formalism has been carried out to explore the dielectric behavior of the as-prepared samples and the experimental results have been analyzed in the light of some theoretical models. Study of the nature of peak separation between imaginary components of electric modulus and the complex impedance plots reveals that the present system with lower AgI content should have a tendency to exhibit long range order for the relaxation of charge carriers. On the other hand, the present system with higher AgI content exhibits a relaxation process, dominated by short range order of charge carriers. This relaxation process is found to be Debye type for AgI doping up to x = 0.20 and it becomes non-Debye type beyond that composition range.
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掺杂 AgI 的玻璃陶瓷介电弛豫的短程和长程有序作用
本文报告了无定形玻璃体系 AgI - CdO -V2O5 -P2O5 - ZnO 的介电弛豫过程。我们采用电模量形式来探索制备样品的介电行为,并根据一些理论模型对实验结果进行了分析。通过研究电模量虚分量和复阻抗图之间峰值分离的性质发现,AgI 含量较低的本系统在电荷载流子弛豫方面应倾向于表现出长程有序性。另一方面,AgI 含量较高的本系统则表现出以电荷载流子短程有序为主的弛豫过程。这种弛豫过程在 AgI 掺杂量达到 x = 0.20 时为德拜型,超过该成分范围后则变为非德拜型。
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来源期刊
Physica B-condensed Matter
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
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