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Mössbauer spectra study of Nd2Fe14−xGaxB and Nd2Fe11.5−xCo2.5GaxB compounds (1990)

Xie, J. Q. ; Wu, C. H. ; Chuang, Y. C. ; [et al.]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 68 (1990), S. 4208-4213

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: A Mössbauer study of Nd2Fe14−xGaxB and Nd2Fe11.5−xCo2.5GaxB confirmed that, in Nd2Fe14−xGaxB with x〈1, preferential occupation of the k2 site by Ga atoms occurs, and that when x≥1, Ga atoms preferentially occupy the k1 as well as j1 sites in addition to the k2 sites. In Nd2Fe11.5−xCo2.5GaxB, the Ga atoms preferentially occupy the j2 site, and also appear at the j1 sites when x≥1. Based on these findings, the different effect of Ga on the Curie temperature in these two compound series can be interpreted satisfactorily. The fact that in these compound series the a axis is little changed whereas the c axis remarkably increases with increasing Ga substitution can also be explained.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.346210

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