2007
DOI: 10.1590/s0103-97332007000800015
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Structural and magnetic properties of the half-ferromagnetic Co2+x+yMn1-xAl1-y alloys

Abstract: Co 2+x+y Mn 1−x Al 1−y intermetallic compounds have been prepared by arc melting and studied with X-ray diffraction and magnetization measurements to ascertain the effect of deviations of composition from the stoichiometry on the ferromagnetism of this system. Hysteresis loops registered at room temperature show a soft ferromagnetic behavior in excess Co. In off-stoichiometric alloys the saturation magnetization is lower than in Co 2 MnAl, whereas the Curie temperature T C is higher in all the studied alloys. … Show more

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Cited by 3 publications
(2 citation statements)
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“…The ternary system MneAleCo has a variety of interesting magnetic phases where some regions still remain practically unexplored, despite some phases have been intensively studied, as for instance, the Co 2 MnAl Heusler alloys [1]. In the MneAl system a metastable ferromagnetic phase was reported in the 1960s [2], which has a body-centered tetragonal structure at 45 at.…”
Section: Introductionmentioning
confidence: 99%
“…The ternary system MneAleCo has a variety of interesting magnetic phases where some regions still remain practically unexplored, despite some phases have been intensively studied, as for instance, the Co 2 MnAl Heusler alloys [1]. In the MneAl system a metastable ferromagnetic phase was reported in the 1960s [2], which has a body-centered tetragonal structure at 45 at.…”
Section: Introductionmentioning
confidence: 99%
“…The large majority of Heusler alloys order ferromagnetically and saturate in applied magnetic fields of less then 5 kOe at low temperatures [7][8][9][10][11][12][13][14][15][16]. Some indeed do order antiferromagnetically, particularly those compounds containing a group 3B element in which the magnetic moment is confined to the Y sites, usually occupied by Mn.…”
mentioning
confidence: 99%