Mössbauer Study of Hyperfine Field, Quadrupole Interaction, and Isomer Shift of Fe 57 in FeS 1.00 , FeS 1.05 and FeS 1.07
Mössbauer Study of Hyperfine Field, Quadrupole Interaction, and Isomer Shift of Fe 57 in FeS 1.00 , FeS 1.05 and FeS 1.07
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FeS 1.00、FeS 1.05 和 FeS 1.07 中 Fe 57 的超精细场、四极相互作用和异构体位移的穆斯堡尔研究
DOI：
10.1143/jpsj.17.1615
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发表时间：
1962
影响因子：
1.7
通讯作者：
E. Hirahara
中科院分区：
文献类型：
--
作者：
K. Ōno;A. Ito;E. Hirahara
用穆斯堡尔吸收法研究了FeS 1.00、FeS 1.05和FeS 1.07中Fe57的超精细结构。在0°K时，FeS 1.00、FeS 1.05和FeS 1.07中铁原子核的磁场外推值分别为328 kOe、318 kOe和324 kOe。在290°K和90°K温度下，FeS_(1.05)的四极相互作用引起的能量漂移具有相反的符号，其比值为-2.8。在FeS 1.07中，相应的比率为-2.0。这表明反铁磁易磁轴从c轴到c平面的转变温度变化了90°，而电场梯度的方向和大小保持不变。表1给出了观察到的内部磁场、四极耦合常数和不同温度下的异构体位移。
The hyperfine structures of Fe 57 in FeS 1.00 , FeS 1.05 and FeS 1.07 have been investigated by the method of the Mossbauer absorption. The extrapolated values of the magnetic fields at the iron nuclei in FeS 1.00 , FeS 1.05 and FeS 1.07 are 328 kOe, 318 kOe and 324 kOe at 0°K respectively. The energy shifts due to the quadrupole interaction in FeS 1.05 at 290°K and 90°K have opposite sign and their ratio is -2.8. The corresponding ratio in FeS 1.07 is -2.0. This indicates that the antiferromagnetic easy axis changes by 90° through the transition temperature from the c axis, which is considered as the direction of the largest electric field gradient, onto the c plane, while direction and value of the electric field gradient remain unchanged. Observed internal magnetic fields, quadrupole coupling constants, and isomer shifts at various temperatures are given in Table 1.