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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Comparative Study of Potentially JJ effeff = 0 Ground State Iridium(V) in SrLaNiIrO 66 , SrLaMgIrO 66 , and SrLaZnIrO 66
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Comparative Study of Potentially JJ effeff = 0 Ground State Iridium(V) in SrLaNiIrO 66 , SrLaMgIrO 66 , and SrLaZnIrO 66

机译：潜在的 j j eff eff = 0地缘铱（v）在srlaniiro 6，srlamgiro 6 6，Srlazniro 6 6

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摘要

> A series of polycrystalline double perovskites SrLa B IrO 6 ( B = Ni, Mg, Zn) containing Ir 5+ (5d 4 ) was synthesized by solid state reactions, and structural, magnetic and electronic properties were investigated. The isotypic fully ordered double perovskites crystallize in space group P 2 1 / n and show semiconducting behavior with estimated bandgaps of approximately 0.2 eV for SrLaNiIrO 6 and SrLaZnIrO 6 , and 0.4 eV for SrLaMgIrO 6 . SrLaNiIrO 6 is an antiferromagnet with a Néel temperature of 74 K ( μ eff = 3.3 μ B , θ W = –90 K), whereas SrLaMgIrO 6 and SrLaZnIrO 6 are weakly paramagnetic. All title compounds exhibit a temperature‐independent contribution to the measured magnetic susceptibility, which supports the notion for a van‐Vleck‐type response originating from the Ir 5+ (5d 4 , J eff = 0) ions.
机译： >一系列多晶双Perovskites srla b iro 6 （ b = ni，mg，zn通过固态反应合成含有IR 5 + / sop>（5d 4-sup>），并研究了结构，磁性和电子性质。在空间组中结晶的同种型完全有序的双钙酸盐在Srlaniiro的估计范围内显示半导体行为，并为srlaniiro的估计分布隙显示半导体行为< Sub> 6 和srlazniro 6 ，以及0.4eV for srlamgiro 6 。 Srlaniiro 6 是一种反霉素，其Néel温度为74k（μl> eff =3.3μ b ，θ w = -90 k），而srlamgiro 6 和srlazniro 6 是弱顺磁性的。所有标题化合物对测量的磁化率表现出温度无关的贡献，该磁化率支持源自IR 5 + （5d 4 的VAN-VLECK型响应的概念， j eff = 0）离子。

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