Magnetic and transport properties of lanthanide rhenates Ln4Re6O19 (Ln = La, Pr, Nd)
作者： Ai Sasaki , Makoto Wakeshima , Yukio Hinatsu
DOI: 10.1088/0953-8984/18/39/030
关键词: Condensed matter physics 、 Crystal structure 、 Octahedron 、 Electrical resistivity and conductivity 、 Lanthanide 、 Electronic structure 、 Delocalized electron 、 Crystallography 、 Ion 、 Chemistry 、 Magnetic susceptibility
摘要: The crystal structures and magnetic properties of Ln4Re6O19 (Ln = La,Pr,Nd) are reported. They crystallize in a cubic structure with space group I 23 have three-dimensional network Re2O10 dimers consisting two edge-sharing ReO6 octahedra. Measurements the susceptibility, specific heat, electrical resistivity for calculation electronic La4Re6O19 reveal that 5d electrons Re ion delocalized these compounds metallic. For Pr,Nd), Schottky-type heat anomaly is observed at 2 K Ln Pr 5 K Nd, which due to short-range orderings Ln4O tetrahedral cluster. Furthermore, Nd4Re6O19 compound, long-range ordering via conduction found 0.45 K.
unirioja.es
sci-hub.se 参考文章(25)
P. Khalifah, R. J. Cava, Metal-metal bonding in the KSbO 3 -type oxides La 4 Ru 6 O 19 and La 3 Ru 3 O 11 : A mechanism for band gap formation in t 2 g states Physical Review B. ,vol. 64, pp. 085111- ,(2001) , 10.1103/PHYSREVB.64.085111
Chihiro Kato, Yoshiaki Kobayashi, Katsuhiko Tsuchida, Toshiaki Fujita, Masatoshi Sato, Ru-NMR Studies and Specific Heat Measurements of Bi3Ru3O11 and La4Ru6O19 Journal of the Physical Society of Japan. ,vol. 73, pp. 698- 702 ,(2004) , 10.1143/JPSJ.73.698
Nobuyuki Taira, Makoto Wakeshima, Yukio Hinatsu, Magnetic Properties of Ruthenium Pyrochlores Y2Ru2O7and Lu2Ru2O7 Journal of Solid State Chemistry. ,vol. 144, pp. 216- 219 ,(1999) , 10.1006/JSSC.1998.8113
P. Khalifah, K. D. Nelson, R. Jin, Z. Q. Mao, Y. Liu, Q. Huang, X. P. A. Gao, A. P. Ramirez, R. J. Cava, Non-Fermi-liquid behaviour in La4Ru6O19. Nature. ,vol. 411, pp. 669- 671 ,(2001) , 10.1038/35079534
Hiroaki Nishimine, Makoto Wakeshima, Yukio Hinatsu, Structures, magnetic, and thermal properties of Ln3MoO7 (Ln=La, Pr, Nd, Sm, and Eu) Journal of Solid State Chemistry. ,vol. 178, pp. 1221- 1229 ,(2005) , 10.1016/J.JSSC.2004.10.013
Yukio Hinatsu, Makoto Wakeshima, Noriyoshi Kawabuchi, Nobuyuki Taira, Structures and magnetic properties of rare earth rhenium oxides Ln3ReO7 (Ln = Gd, Tb, and Dy) Journal of Alloys and Compounds. ,vol. 374, pp. 79- 83 ,(2004) , 10.1016/J.JALLCOM.2003.11.067
T. Katsufuji, H. Ẏ. Hwang, S-W. Cheong, Anomalous magnetotransport properties of R2Mo2O7 near the magnetic phase boundary Physical Review Letters. ,vol. 84, pp. 1998- 2001 ,(2000) , 10.1103/PHYSREVLETT.84.1998
Nobuyuki Taira, Makoto Wakeshima, Yukio Hinatsu, Magnetic properties of iridium pyrochlores R2Ir2O7(R = Y, Sm, Eu and Lu) Journal of Physics: Condensed Matter. ,vol. 13, pp. 5527- 5533 ,(2001) , 10.1088/0953-8984/13/23/312
Wolfgang Jeitschko, Dieter H Heumannskämper, Marietta S Schriewer-Pöttgen, Ute Ch Rodewald, Preparation, Crystal Structures, and Properties of Rhenates with Multiple Re–Re Bonds: Ln2ReO5 (Ln=Sm, Eu, Gd), Ln3Re2O9 (Ln=Pr, Nd, Sm), and Ln4Re6O19 (Ln=La–Nd) Journal of Solid State Chemistry. ,vol. 147, pp. 218- 228 ,(1999) , 10.1006/JSSC.1999.8237
F.P.F. van Berkel, D.J.W. Ijdo, The orthorhombic gluorite related compounds Ln3RuO7, LnNd, Sm and Eu Materials Research Bulletin. ,vol. 21, pp. 1103- 1106 ,(1986) , 10.1016/0025-5408(86)90226-6