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Dzyaloshinsky–Moriya interaction in the spin-glass system Cu95−xAuxMn5: Hall effect and ac susceptibility (1988)

Barnard, R. D. ; Al-Naimi, R. F.

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

Journal of Applied Physics 64 (1988), S. 5622-5624

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: The effect of gradually changing the background matrix in which Mn ions are imbedded has been investigated in the spin-glass system Cu95−xAuxMn5 by means of low-field Hall effect and ac susceptibility measurements. For the Cu-rich alloys a substantial positive anomalous Hall coefficient is found arising from skew scattering of Dzyaloshinsky–Moriya origin which peaks in each case at the freezing temperature. The concentration x=∼50% appears to be critical in that (a) the anomalous Hall coefficient changes sign, (b) peff undergoes a change of 0.30, and (c) a fairly sudden change of the ordinary Hall coefficient occurs. These results suggest the Mn ions suddenly acquire additional orbital angular momentum at this composition.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.342301

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