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1. Single crystal synthesis and properties of the two-dimensional van der Waals frustrated magnets, Mn ₂ In ₂ Se ₅ and Mn ₂ Ga ₂ S ₅

   https://doi.org/10.1039/D3TC03550F  

   Williams, Archibald J; Reifsnyder, Alexander; Yu, Bowen; Moore, Curtis E; Susner, Michael A; Windl, Wolfgang; McComb, David W; Goldberger, Joshua E (February 2024, Journal of Materials Chemistry C)

   We establish the synthesis, physical properties, and highly-frustrated magnetism of Mn₂In₂Se₅and Mn₂Ga₂S₅van der Waals crystals. 

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2. Orbital competition of Mn ³⁺ and V ³⁺ ions in Mn _1+x V _2-x O ₄

   https://doi.org/10.1088/1361-648X/abd9a1  

   Jiao, J L; Zhang, H P; Huang, Q; Wang, W; Sinclair, R; Wang, G; Ren, Q; Lin, G T; Huq, A; Zhou, H D; et al (January 2021, Journal of Physics: Condensed Matter)

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3. Electronic, magnetic and structural properties of CoFeVAl and CoFeV _0.5 Mn _0.5 Al

   https://doi.org/10.1088/1361-6463/ad5696  

   Kharel, Parashu; Baker, Gavin; Wieberdink, Matthew; Diallo, Salimatou; Anas, Mohd; Shand, Paul M; Lukashev, Pavel V (June 2024, Journal of Physics D: Applied Physics)

   In this study, we present results of a comprehensive computational and experimental study of CoFeVAl and CoFeV0.5Mn0.5Al Heusler alloys. It is shown that while CoFeVAl exhibits a fairly large degree of spin polarization, this material is not half-metallic due to the presence of the vanadium spin-down states at the Fermi level. However, replacing 50% of vanadium with manganese results in a nearly half-metallic transition, largely due to the shift of the Fermi level towards occupied states. Moreover, the half-metallicity of CoFeV0.5Mn0.5Al is rather robust in a wide range of considered mechanical strain and under experimentally observed B2-type atomic disorder, thus making this alloy potentially suitable for practical spintronic applications. Both considered alloys exhibit ferromagnetic alignment at larger lattice constants, aside from a relatively small magnetic moment of vanadium which is anti-aligned with the magnetic moments of Co, Fe and Mn. We have synthesized both CoFeVAl and CoFeV0.5Mn0.5Al alloys in cubic structure with some structural disorder using arc melting and annealing. The structural and magnetic properties of the synthesized CoFeV0.5Mn0.5Al alloy are in good agreement with the theoretical calculations but vary slightly from the parent compound. 

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4. Structural and magnetic properties of bulk Mn ₂ PtSn

   https://doi.org/10.1088/1361-648X/aae652  

   Herran, J; Prophet, S; Jin, Y; Valloppilly, S; Kharel, P R; Sellmyer, D J; Lukashev, P V (November 2018, Journal of Physics: Condensed Matter)
5. Synthesis of lead-free Cs ₄ (Cd _1−x Mn _x )Bi ₂ Cl ₁₂ (0 ≤ x ≤ 1) layered double perovskite nanocrystals with controlled Mn–Mn coupling interaction

   https://doi.org/10.1039/D0NR06771G  

   Yang, Hanjun; Shi, Wenwu; Cai, Tong; Hills-Kimball, Katie; Liu, Zhenyang; Dube, Lacie; Chen, Ou (November 2020, Nanoscale)

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   Lead-free perovskites and their analogues have been extensively studied as a class of next-generation luminescent and optoelectronic materials. Herein, we report the synthesis of new colloidal Cs 4 M( ii )Bi 2 Cl 12 (M( ii ) = Cd, Mn) nanocrystals (NCs) with unique luminescence properties. The obtained Cs 4 M( ii )Bi 2 Cl 12 NCs show a layered double perovskite (LDP) crystal structure with good particle stability. Density functional theory calculations show that both samples exhibit a wide, direct bandgap feature. Remarkably, the strong Mn–Mn coupling effect of the Cs 4 M( ii )Bi 2 Cl 12 NCs results in an ultra-short Mn photoluminescence (PL) decay lifetime of around 10 μs, around two orders of magnitude faster than commonly observed Mn 2+ dopant emission in NCs. Diluting the Mn 2+ ion concentration through forming Cs 4 (Cd 1−x Mn x )Bi 2 Cl 12 (0 < x < 1) alloyed LDP NCs leads to prolonged PL lifetimes and enhanced PL quantum yields. Our study provides the first synthetic example of Bi-based LDP colloidal NCs with potential for serving as a new category of stable lead-free perovskite-type materials for various applications. 

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