ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Electrical resistivity (ρ) studies as a function of temperature are reported for the first time, on single-crystal samples of dilute Cr-Al alloys containing 0.23-, 0.52-, 1.02-, 1.41-, 1.91-, 2.99-, and 4.53-at. % Al with a view to resolve the unusual and complex features reported for the magnetic phase diagram of Cr-Al system. ρ(T) anomalies are obtained in the region of TN for all the concentrations, contrary to earlier conclusions based on data on polycrystalline samples, that antiferromagnetism disappears in the concentration c range 2〈c〈4 at. % Al. The TN vsAl content plot shows a sharp fall initially up to 1.02 at. % beyond which it rises with increase in Al content. A C-I phase boundary region has been identified in the magnetic phase diagram by utilizing the infrared reflectivity data reported earlier on the same samples as complementary evidence.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.338556
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