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Correlating Itinerant Magnetism in RCo2Pn2 Pnictides (R = La, Ce, Pr, Nd, Eu, Ca; Pn = P, As) to Their Crystal and Electronic Structures
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2018-01-05 00:00:00 , DOI: 10.1021/acs.accounts.7b00533 Xiaoyan Tan 1 , Zachary P. Tener 1 , Michael Shatruk 1
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2018-01-05 00:00:00 , DOI: 10.1021/acs.accounts.7b00533 Xiaoyan Tan 1 , Zachary P. Tener 1 , Michael Shatruk 1
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Rare-earth cobalt pnictides, RCo2Pn2 (Pn = P, As), belong to the ThCr2Si2 structure type, which is ubiquitous among intermetallic compounds. The structural and magnetic properties of simple ternary RCo2P2 phosphides, which combine partially delocalized (itinerant) 3d magnetic moments of cobalt and localized 4f magnetic moments of lanthanides, were investigated extensively in 1980–1990s, predominantly by the Jeitschko group. Those studies established that LaCo2P2 shows ferromagnetic (FM) ordering of Co moments, while the other members of the series, with R = Ce, Pr, Nd, or Sm, exhibit antiferromagnetic (AFM) ordering in both R and Co magnetic sublattices. This observation also correlated with the larger separation between the [Co2P2] layers in the crystal structure of LaCo2P2 as compared to the decreased interlayer distances in the other structures of the RCo2P2 series.
中文翻译：
RCo 2 Pn 2肽（R = La，Ce，Pr，Nd，Eu，Ca； Pn = P，As）中的迭代磁性与其晶体和电子结构相关
稀土钴磷化物RCo 2 Pn 2（Pn = P，As）属于ThCr 2 Si 2结构类型，在金属间化合物中普遍存在。简单的三元RCo 2 P 2磷化物的结构和磁性，结合了钴的部分离域（流动的）3d磁矩和镧系元素的局部4f磁矩，主要由Jeitschko组进行了广泛研究。这些研究确定了LaCo 2 P 2示出Co矩的铁磁（FM）排序，而该系列的其他成员（R = Ce，Pr，Nd或Sm）在R和Co磁子晶格中均表现出反铁磁（AFM）排序。与在RCo 2 P 2系列的其他结构中减小的层间距离相比，该观察结果还与LaCo 2 P 2的晶体结构中[Co 2 P 2 ]层之间的较大间距相关。
更新日期：2018-01-05
中文翻译：
RCo 2 Pn 2肽（R = La，Ce，Pr，Nd，Eu，Ca； Pn = P，As）中的迭代磁性与其晶体和电子结构相关
稀土钴磷化物RCo 2 Pn 2（Pn = P，As）属于ThCr 2 Si 2结构类型，在金属间化合物中普遍存在。简单的三元RCo 2 P 2磷化物的结构和磁性，结合了钴的部分离域（流动的）3d磁矩和镧系元素的局部4f磁矩，主要由Jeitschko组进行了广泛研究。这些研究确定了LaCo 2 P 2示出Co矩的铁磁（FM）排序，而该系列的其他成员（R = Ce，Pr，Nd或Sm）在R和Co磁子晶格中均表现出反铁磁（AFM）排序。与在RCo 2 P 2系列的其他结构中减小的层间距离相比，该观察结果还与LaCo 2 P 2的晶体结构中[Co 2 P 2 ]层之间的较大间距相关。
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