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Magnetic State in Iron Hydride Under Pressure Studied by X-ray Magnetic Circular Dichroism at the Fe K-edge

Published online by Cambridge University Press:  01 February 2011

Naoki Ishimatsu ,
Yasuharu Matsushima ,
Hiroshi Maruyama ,
Takao Tsumuraya ,
Tamio Oguchi ,
Naomi Kawamura ,
Masaichiro Mizumaki ,
Takahiro Matsuoka  and
Kenichi Takemura
Naoki Ishimatsu
Affiliation:
[email protected], Hiroshima university, Graduate school of science, Higashi-Hiroshima, Japan
Yasuharu Matsushima
Affiliation:
[email protected], Hiroshima university, Graduate school of science, Higashi-Hiroshima, Japan
Hiroshi Maruyama
Affiliation:
[email protected], Hiroshima university, Graduate school of science, Higashi-Hiroshima, Japan
Takao Tsumuraya
Affiliation:
[email protected], Hiroshima University, Gradate School of Advanced Science of Matter, Higashi-Hiroshima, Japan
Tamio Oguchi
Affiliation:
[email protected], Hiroshima University, Gradate School of Advanced Science of Matter, Higashi-Hiroshima, Japan
Naomi Kawamura
Affiliation:
[email protected], Japan Synchrotron Research Institute, Kouto, Sayo, Japan
Masaichiro Mizumaki
Affiliation:
[email protected], Japan Synchrotron Research Institute, Kouto, Sayo, Japan
Takahiro Matsuoka
Affiliation:
[email protected], Japan Synchrotron Research Institute, Kouto, Sayo, Japan
Kenichi Takemura
Affiliation:
[email protected], National Institute for Materials Science, Namiki, Tsukuba, Japan
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Abstract

In order to study magnetic states in Fe-hydride under pressure, X-ray magnetic circular dichroism (XMCD) at the Fe K-edge has been measured up to 27.5 GPa. As a result, hydrogenation from bcc-Fe to dhcp-FeH occurs within a narrow region of 3.2-3.8 GPa, which is clearly observed by the dichroic profile in dhcp-FeH differing from that in bcc-Fe. Influence of H atoms on Fe 3d and 4p electronic states is discussed using the pressure-dependent XMCD and the first-principles calculation.

Keywords

Feferromagnetichydrogenation
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1262: Symposium V/W – In-Situ and operando Probing of Energy Materials at Multiscale Down to Single Atomic Couumn-The Powerof X-Rays, Neutons and Electrons Microscopy , 2010 , 1262-W04-02
Copyright
Copyright © Materials Research Society 2010

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References

1 Fukai, Y., “The Metal Metal-Hydrogen System”2nd ed. Springer, Berlin (2005).Google Scholar
2 Antonov, V.E., J. Alloys Comp., 330–332, 110 (2002).Google Scholar
3 Antonov, V.E., Baier, M., Dorner, B., Fedotov, V.K., Grosse, G., Kolesnikov, A.I., Ponyatovsky, E.G., Schneider, G., and Wagner, F.E., J. Phys.: Cond ondens ens. Matter Matter, 14, 6427 (2002).Google Scholar
4 Antonov, V.E., Belash, I.T., Degtyareva, V.F., Ponyatovskii, E.G., Shiryaev, V.I., Sov. Phys. Dokl. 25, 490 (1980).Google Scholar
5 Badding, J.V., Hemley, R.J., Mao, H.K., Science, 253, 421 (1991).Google Scholar
6 Choe, I., Ingalls, R., Brown, J.M., Sato-Sorensen, Y., Mills, R., Phys. Rev. B, 44, 1 (1991).Google Scholar
7 Ishimatsu, N., Maruyama, H., Kawamura, N., Suzuki, M., Ohishi, Y., Shimomura, O., J. Phys. himomura, Soc. Jpn., 76 064703, (2007).Google Scholar
8 Ding, Y., Haskel, D., Tseng, Y.C., Kaneshita, E., Veenendaal, M. van, Mitchell, J.F., Sinogeikin, S.V., Prakapenka, V., Mao, H.K., Phys. Rev. Lett. 102, 237201 (2009).Google Scholar
9 Takemura, K., Sahu, P.C., Kunii, Y., Toma, Y., Rev. Sci. Instrum., 72, 3873 (2001).Google Scholar
10 Mao, H. K., Xu, J., Bell, P. M., J. Geophys. Res. 91, 4673 (1986).Google Scholar
11 Kawamura, N., Ishimatsu, N., Maruyama, H., J. Synchrotron Rad., 16, 730 (2009)).Google Scholar
12 Yumoto, H. et al. , Proc. SPIE 7448, 74480Z (2009).Google Scholar
13 Hirano, K. H, Izumi, K., Ishikawa, T., Annaka, S., Kikuta, S., Jpn. J. Appl. Phys. 30, L407 (1991).Google Scholar
14 Tsumuraya, T., Shishidou, T. and Oguchi, T., Phys. Rev. B 77, 235114 (2008).Google Scholar
15 Hirao, N., Kondo, T., Ohtani, E., Takemura, K., Kikegawa, T., Geo Geophys phys. Res. Lett. 31, L06616 (2004.Google Scholar
16 Igarashi, J., Hirai, K., Phys. Rev. B 53, 6442 (1996).Google Scholar
17 Sakurai, H., Itoh, F., Maruyama, H., Koizumi, A., Kobayashi, K., Yamazaki, H., Tanji, Y., Kawata, H., J. Phys. Soc. Jpn. Jpn., 62, 459, (1993).Google Scholar
18 Chaboy, J., Garcia, J., Marcelli, A., J. Magn. Mater., 166, 149 (1997).Google Scholar