Combined Mössbauer and LIII-edge X-ray absorption study of mixed- valent EuPd2Si2 and EuNi2P2

Combined Mössbauer and LIII-edge X-ray absorption study of mixed- valent EuPd2Si2 and EuNi2P2
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混合价 EuPd2Si2 和 EuNi2P2 的穆斯堡尔和 LIII 边 X 射线吸收联合研究

DOI:
10.1016/0304-8853(85)90165-9
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发表时间:
1985
影响因子:
2.7
通讯作者:
G. Kaindl
G. Kaindl
中科院分区:
材料科学3区
文献类型:
--
作者:
G. Wortmann;K. Frank;E. Sampathkumaran;B. Perscheid;G. Schmiester;G. Kaindl

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在1.7 - 300 K温度范围内,用LIII-XA和~(151)Eu穆斯堡尔同质异能位移测量了混合价化合物EuPd_2Si_2和EuNi_2P_2中Eu的平均价态。对于EuPd_2Si_2,详细研究了穆斯堡尔谱中观察到的卫星线的行为。从比较的LIII-XA和穆斯堡尔结果获得相同的样品的价/异构体位移校准问题,以及可能的LIII-XA光谱中的最终状态的影响进行了讨论。
The mean valence of Eu is determined by LIII-edge X-ray absorption (LIII-XA) and151Eu Mössbauer isomer shift measurementd for the mixed-valent compounds EuPd2Si2and EuNi2P2in the temperature range from 1.7 to 300 K. For EuPd2Si2, the behaviour of the satellite line observed in the Mössbauer spectra was investigated in detail. From a comparison of the LIII-Xa and Mössbauer results obtained on identical samples the valence/isomer shift calibration problem as well as possible final-state effects in LIII-XA spectra are discussed.