title: High pressure luminescence and Raman studies on the phase transition of Gd2O3:Eu3+ nanorods.
abstract: The cubic Gd2O3:Eu3+ nanorods were synthesized by a hydrothermal method. The SEM image indicated the nanorods with diameter of 30-35 nm and length of 200-500 nm. The structural stability of Gd2O3:Eu3+ nanorods was investigated by in situ high pressure luminescence and Raman spectra up to 18.9 GPa at room temperature. The results reveals a pressure-induced phase transition from cubic to hexagonal structure at about 11.3 GPa. After releasing pressure, the part of hexagonal structure is retained and the other transfers to monoclinic phase.
authors.affiliation: Hefei National Laboratory for Physical Sciences at Microscale and Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors.forename: C C
authors.initials: CC
authors.lastname: Zhang
authors.forename: Z M
authors.initials: ZM
authors.lastname: Zhang
authors.forename: R C
authors.initials: RC
authors.lastname: Dai
authors.forename: Z P
authors.initials: ZP
authors.lastname: Wang
authors.forename: Z J
authors.initials: ZJ
authors.lastname: Ding