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2005
Europium
I 3400
28- 018
Europium
Synthesis, Crystal Structure and Magnetism of the Mixed Metal Hydrides
Eu1-xSr xMg2H6 (0 ≤ x ≤ 0.6). — The title compounds are prepared by hydrogenation
of Eu1-xSr xMg2 (0 ≤ x ≤ 1) (autoclave, 600 K, 5 MPa H2, 5 d). The samples are characterized by powder XRD and magnetic measurements. For x ≤ 0.6 red-orange compounds of composition Eu1-xSrxMg2H6 and for x > 0.8, yellow-grey compounds of composition (Eu1-xSrx)2Mg 3H10 are formed. As revealed by powder neutron diffraction
Eu0.6Sr 0.4Mg 2D6 and EuMg 2D6 crystallize in the space group P4/mmm with Z = 1. The
hydrides are paramagnetic and order ferromagnetically below 21 and 15 K for x = 0.2
and 0.4, respectively. — (KOHLMANN*, H.; YVON, K.; WANG, Y.; J. Alloys
Compd. 393 (2005) 1-2, 11-15; Lab. Cristallogr., Univ. Geneve, CH-1211 Geneve 4,
Switz.; Eng.) — W. Pewestorf
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