%0 Journal Article
%T Phase Transition and EOS of Cinnabar (α-HgS) at High Pressure and High Temperature
%J 中国物理快报
%D 2009
%I 
%X Phase relations and equation of state (EOS) of natural cinnabar (α-HgS) are investigated by high-pressure and high-temperature synchrotron x-ray powder diffraction. The unambiguous cinnabar-rocksalt structure phase boundaries are determined to be Plower(GPa)=15.54-0.014T°C and Pupper(GPa)=23.84-0.014T(°C) at 300-623K. With K' fixed at 4, we obtain K0= 37(4)GPa, (∂K/∂ T)P=-0.025(2)GPaK-1, and α_{0}=3.79(20)×10-5K-1 for the cinnabar phase of α-HgS. The (K/∂T)P and α0 of cinnabar phase are obtained for the first time. A nearly isotropic compression of cinnabar phase is observed by linear regressions.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=3C204046FD1D176C16CD0A4799F1EF9C&yid=DE12191FBD62783C&vid=96C778EE049EE47D&iid=E158A972A605785F&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0