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Superconductivity and magnetism inR4Be33Pt16(R=Y,La–Nd,Sm–Lu): A family of crystallographically complex noncentrosymmetric compounds
Physical Review Materials ( IF 3.1 ) Pub Date : 2021-07-14 , DOI: 10.1103/physrevmaterials.5.074801 E. Svanidze 1 , A. Amon 1 , M. Nicklas 1 , Yu. Prots 1 , M. Juckel 1 , H. Rosner 1 , U. Burkhardt 1 , M. Avdeev 2 , Yu. Grin 1 , A. Leithe-Jasper 1
Physical Review Materials ( IF 3.1 ) Pub Date : 2021-07-14 , DOI: 10.1103/physrevmaterials.5.074801 E. Svanidze 1 , A. Amon 1 , M. Nicklas 1 , Yu. Prots 1 , M. Juckel 1 , H. Rosner 1 , U. Burkhardt 1 , M. Avdeev 2 , Yu. Grin 1 , A. Leithe-Jasper 1
Affiliation
Crystallographically complex compounds often possess peculiar physical properties, the evolution of which can be tracked by changing one of the constituent elements at a time. We report the discovery and synthesis of isotypic (R = Y, La–Nd, Sm–Lu) compounds, which crystallize with the noncentrosymmetric cubic space group . The lattice parameters vary from for R = La to for R = Lu. phases exhibit a wide range of ground states. R = Y, La, and Lu analogs display superconductivity. Their calculated electronic structures show nonzero density of states at the Fermi level, with the value of the Sommerfeld coefficient consistent with those obtained experimentally. The rest of the compounds exhibit magnetic ground states with ordering temperatures ranging from K (R = Yb) to K (R = Pr). The diversity of physical properties of compounds can likely be attributed to the nature of the individual rare-earth elements, structural noncentrosymmetry, the large number of atoms per unit cell (212), as well as the complex multicenter interactions within the Be-Pt framework.
中文翻译:
R4Be33Pt16(R=Y,La–Nd,Sm–Lu) 中的超导性和磁性:一系列晶体学复杂的非中心对称化合物
晶体学上复杂的化合物通常具有特殊的物理特性,可以通过一次改变一个组成元素来跟踪其演变。我们报告了同种异型的发现和合成( R = Y, La–Nd, Sm–Lu) 化合物,以非中心对称立方空间群结晶. 晶格参数从对于R = La 到因为R = Lu。相表现出广泛的基态。R = Y、La 和 Lu 类似物显示超导性。他们计算的电子结构显示费米能级的非零态密度,索末菲系数的值与实验获得的值一致。剩下的 化合物表现出磁性基态,有序温度范围为 K ( R = Yb) 到K(R = Pr)。物理性质的多样性 化合物可能归因于单个稀土元素的性质、结构非中心对称性、每个晶胞的大量原子 (212) 以及 Be-Pt 框架内复杂的多中心相互作用。
更新日期:2021-07-14
中文翻译:
R4Be33Pt16(R=Y,La–Nd,Sm–Lu) 中的超导性和磁性:一系列晶体学复杂的非中心对称化合物
晶体学上复杂的化合物通常具有特殊的物理特性,可以通过一次改变一个组成元素来跟踪其演变。我们报告了同种异型的发现和合成( R = Y, La–Nd, Sm–Lu) 化合物,以非中心对称立方空间群结晶. 晶格参数从对于R = La 到因为R = Lu。相表现出广泛的基态。R = Y、La 和 Lu 类似物显示超导性。他们计算的电子结构显示费米能级的非零态密度,索末菲系数的值与实验获得的值一致。剩下的 化合物表现出磁性基态,有序温度范围为 K ( R = Yb) 到K(R = Pr)。物理性质的多样性 化合物可能归因于单个稀土元素的性质、结构非中心对称性、每个晶胞的大量原子 (212) 以及 Be-Pt 框架内复杂的多中心相互作用。