Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
63 (1988), S. 3752-3754
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Small-angle neutron scattering measurements (SANS) have been made an amorphous ErFe2 and HoFe2 alloys as a function of temperature. These alloys show strong "subcritical'' scattering as the temperature is lowered below their SANS-determined transition temperatures (Tf's) of 105 K (±1 K) and 185 K (±5 K), respectively. The SANS line shapes are Lorentzian above Tf, but become increasingly non-Lorentzian below Tf and are consistent with a Lorentzian plus Lorentzian-squared cross section which is appropriate for these random anisotropy systems. The correlation lengths for ErFe2 and HoFe2 at low T are in the range of 60–70 A(ring). Near Tf ErFe2 shows a sharp peak, while for HoFe2 ξ is resolution limited over a range of 25 K below Tf.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.340656
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