High-pressure synthesis of BaVO3: A new cubic perovskite
High-pressure synthesis of BaVO3: A new cubic perovskite
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DOI：
10.1016/j.jpcs.2014.02.001
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发表时间：
2014-06
影响因子：
4
通讯作者：
K. Nishimura;I. Yamada;K. Oka;Y. Shimakawa;M. Azuma
中科院分区：
文献类型：
--
作者：
K. Nishimura;I. Yamada;K. Oka;Y. Shimakawa;M. Azuma
采用高压合成法在15GPa、1350 °C条件下合成了一种新型立方相钙钛矿结构BaVO3。与我们预期的Ba取代Sr引起的晶格膨胀会导致非中心对称的四方晶系畸变相反，BaVO3在室温下保持其立方晶体结构，a =3.94288（3）Ω，并且在最低温度下具有SrVO3的费米液体特性。
A new cubic perovskite BaVO3was synthesized by high-pressure synthesis at 15 GPa, and 1350 °C. Contrary to our expectations that lattice expansion by Ba substitution for Sr would lead to non-centrosymmetric tetragonal distortion, BaVO3preserved its cubic crystal structure witha=3.94288(3) Å at room temperature and had Fermi-liquid characteristics as SrVO3down to the lowest temperature.