%0 Journal Article
%T Magnetocaloric and Colossal Magnetoresistance Effect in Layered Perovskite La1:4Sr 1:6Mn2O7<br>
%A Li'an Han
%A Changle Chen
%A <br>
%J 材料科学技术学报
%D 2010
%I 
%X Magnetocaloric and colossal magnetoresistance effects of the layered perovskite La1:4Sr1:6Mn2O7 compound have been studied. A broad peak of magnetic entropy change (-ΔSM) is found above the Curie temperature (TC=120 K), which can be associated with the existence of two-dimensional short range ferromagnetic order. Additionally, the curvilinear shape of -ΔSM for layered perovskite is quite different from that of the Ln1-xAxMnO3 probably arising from magnetocrystalline anisotropy. At the same time, a wide peak of colossal magnetoresitance effect near TC is found in the layered provskite La1:4Sr1:6Mn2O7.
%K Magnetocaloric effect
%K Layered perovskite
%K Colossal magnetoresistance<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=ED5D3CB6053105EC4D50265BBB77A756&yid=140ECF96957D60B2&vid=96C778EE049EE47D&iid=38B194292C032A66&sid=D9AE183D3F5C3C75&eid=FBCA02DBD05BD4EA&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=21