Crystal field and microscopic spin Hamiltonians approach for V3+ ions in α-ZnAl2S4 single crystals

IF 2.8 3区 物理与天体物理 Q2 PHYSICS, CONDENSED MATTER
F. Mselmi, H. Souissi, Abir Hadded, S. Kammoun, E. Dhahri
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引用次数: 0

Abstract

The optical properties of α-ZnAl2S4:V3+ single crystals were investigated by S. Angel et al. (Anghel et al., 2011) [1]. The spectra of α-ZnAl2S4:V3+ reveal electronic transitions between the energy levels of V3+ ions located at the octahedral site. A comprehensive theoretical study was performed, examining crystal field, spin-spin and other spin orbit interactions. The calculated energy level schemes significantly correspond with the experimental results of V3+ doped α-ZnAl2S4 at both low and room temperatures. A novel, consistent interpretation of the radiative properties is proposed, considering the effect of temperature on crystal field parameters. This interpretation supports the potential use of α-ZnAl2S4: V3+ single crystals, excited at λex = 532 nm, as active media in tunable lasers and amplifiers.
α-ZnAl2S4单晶中V3+离子的晶体场和微观自旋哈密顿方法
S. Angel 等人研究了 α-ZnAl2S4:V3+ 单晶的光学性质(Anghel 等人,2011 年)[1]。α-ZnAl2S4:V3+ 的光谱揭示了位于八面体位点的 V3+ 离子能级之间的电子跃迁。研究人员对晶体场、自旋-自旋和其他自旋轨道相互作用进行了全面的理论研究。计算得出的能级方案与掺杂 V3+ 的 α-ZnAl2S4 在低温和室温下的实验结果非常吻合。考虑到温度对晶体场参数的影响,对辐射特性提出了新颖、一致的解释。这种解释支持了 α-ZnAl2S4 的潜在用途:V3+ 单晶在 λex = 532 纳米波长下激发,可用作可调谐激光器和放大器的有源介质。
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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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