Magnetic properties of RE10TCd3 (RE = Ho, Er, Tm, Lu; T = Fe, Co, Ni, Ru) and 57Fe Mössbauer spectroscopic data of Y10FeCd3
Magnetic properties of RE10TCd3 (RE = Ho, Er, Tm, Lu; T = Fe, Co, Ni, Ru) and 57Fe Mössbauer spectroscopic data of Y10FeCd3
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RE10TCd3 的磁性（RE = Ho、Er、Tm、Lu；T = Fe、Co、Ni、Ru）和 Y10FeCd3 的 57Fe 穆斯堡尔光谱数据
DOI：
10.1515/znb-2015-0145
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
R. Pöttgen
中科院分区：
文献类型：
--
作者：
O. Niehaus;Michael Johnscher;T. Block;Birgit Gerke;R. Pöttgen
将14种X射线纯金属间化合物RE10TCd3(RE=Ho，Er，Tm，Lu；T=Fe，Co，Ni，Ru)和Y10FeCd3在密封的Nb管中进行高频熔炼，然后在马弗炉中进行热处理，得到了14种X射线纯的金属间化合物RE10TCd3和Y10FeCd3。它们采用Er10FeCd3结构，这是Co2Al5型的三元有序版本。随温度变化的磁化率测量表明，钚化合物Lu10FeCd3、Lu10CoCd3和Lu10RuCd3具有Pauli顺磁性。含Ho、Er、Tu的RE10TCd3相表现出居里-魏氏顺磁性，其实验磁矩与RE3+的自由离子值相吻合。所有这些化合物都是反铁磁有序的。Ho化合物的Néel温度最高，如Ho10RuCd3的46.5K。部分RE10TCd3相表现出场诱导的自旋重定向。Y10FeCd3的57Fe Mössbauer谱证实了单晶铁的位置。
Abstract Fourteen X-ray-pure intermetallic compounds RE10TCd3 (RE = Ho, Er, Tm, Lu; T = Fe, Co, Ni, Ru) and Y10FeCd3 were obtained through high-frequency melting of the elements in sealed niobium tubes and subsequent annealing in a muffle furnace. They adopt the Er10FeCd3 structure, a ternary ordered version of the Co2Al5 type. Temperature-dependent magnetic susceptibility measurements show Pauli paramagnetism for the lutetium compounds Lu10FeCd3, Lu10CoCd3, and Lu10RuCd3. The RE10TCd3 phases with holmium, erbium, and thulium show Curie–Weiss paramagnetism and the experimental magnetic moments match with the free ion values of RE3+. All these compounds order antiferromagnetically. The highest Néel temperature was observed for the holmium compounds, e.g. 46.5 K for Ho10RuCd3. Some of the RE10TCd3 phases show field-induced spin reorientations. A 57Fe Mössbauer spectrum of Y10FeCd3 confirms the single crystallographic iron site.