MAGNETIC-SUSCEPTIBILITY OF THE SEMIMAGNETIC SEMICONDUCTOR HG1-XMNXS
1993 (English)In: Journal of Magnetism and Magnetic Materials, ISSN 0304-8853, Vol. 118, 152-158 p.Article in journal (Refereed) Published
The magnetic susceptibility of Hg1-xMnxS (x = 0.05, 0.10, 0.20, 0.30) has been measured in a SQUID magnetometer (T = 2-250 K) in a magnetic field of 9 kG. The high-temperature susceptibility of Hg1-xMnxS was found to behave in accordance with the Curie-Weiss law. From chi(T) measurements, for the first time, the microscopic parameter J1/k(B) = -(6.3 +/- 0.1) K (effective exchange integral) has been obtained. A spin S = 2.48 +/- 0.09, close to its atomic value S = 5/2, was also found. Low-temperature susceptibility measurements show that the sample with the highest Mn-concentration (x = 0.30) exhibits a difference between field-cooled and zero-field-cooled susceptibility signalling a spin-glass phase transition at about 4 K. As Hg1-xMnxS is the last uninvestigated alloy from the A1-xIIMnxBVI group, a complete review of experimental values (J1/k(B)) is also given.
Place, publisher, year, edition, pages
1993. Vol. 118, 152-158 p.
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:uu:diva-195533DOI: 10.1016/0304-8853(93)90170-7OAI: oai:DiVA.org:uu-195533DiVA: diva2:607957