Sm valence states and magnetic properties in SmBe13 and SmTi2Al20 investigated by Sm synchrotron-radiation-based M?ssbauer spectroscopy
Sm valence states and magnetic properties in SmBe13 and SmTi2Al20 investigated by Sm synchrotron-radiation-based M?ssbauer spectroscopy
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基于 Sm 同步辐射的穆斯堡尔谱研究 SmBe13 和 SmTi2Al20 中的 Sm 价态和磁性
DOI：
10.1007/s10751-017-1473-z
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发表时间：
2017
影响因子：
--
通讯作者：
Aoki Yuji
中科院分区：
文献类型：
--
作者：
Tsutsui Satoshi;Kobayashi Yoshio;Nakamura Jin;Kubo Michael K.;Amagasa Shota;Yamada Yasuhiro;Yoda Yoshitaka;Shimizu Yusei;Hidaka Hiroyuki;Yanagisawa Tatsuya;Amitsuka Hiroshi;Yamada Akira;Higashinaka Ryuji;Matsuda Tatsuma D.;Aoki Yuji
基于同步辐射的Sm Mössbauer光谱应用于Sm金属间化合物smbe13和SmTi2Al20。温度依赖性的Mössbauer参数表明smbe13的Sm价态是纯三价态。smbe13在同步辐射sm Mössbauer光谱中也表现出二阶多普勒频移。在smti2al20中获得的Mössbauer参数表明，由于4f与传导电子的杂化和/或晶体电场的影响，Sm的价态是波动的，磁矩的大小减小。
Synchrotron-Radiation-basedSm Mössbauer spectroscopy was applied to Sm intermetallics, SmBe13and SmTi2Al20. Temperature dependence of the Mössbauer parameters in SmBe13indicate the Sm valence state is purely trivalent. SmBe13also showed second-order Doppler shift in synchrotron-radiation-basedSm Mössbauer spectroscopy. The Mössbauer parameters obtained in SmTi2Al20suggest that the Sm valence is fluctuating and the magnitude of the magnetic moment is reduced by hybridization between 4f and conduction electrons and/or effect of crystal electric field.