Structural, magnetic and transport properties of Pb{sub 2}Cr{sub 1+x}Mo{sub 1−x}O{sub 6} (−1≤x≤1/3)

• Published in: Journal of solid state chemistry 2017-02, Vol.246
• Main Authors: Zhao, H.F., School of Mathematics and Physics, University of Science and Technology, Beijing 100083, Cao, L.P., Song, Y.J., Feng, S.M., Shen, X., Ni, X.D., Yao, Y., Wang, Y.G., Wang, R.M., Jin, C.Q., Yu, R.C., School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049
• Format: Article
• Language: English
• Subjects: CHROMIUM COMPOUNDS; ELECTRICAL PROPERTIES; EXPERIMENTAL DATA; GROUND STATES; INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; LEAD COMPOUNDS; MAGNETIC PROPERTIES; MOLYBDENUM COMPOUNDS; MOLYBDENUM IONS; PRESSURE RANGE MEGA PA 10-100; TEMPERATURE RANGE 0400-1000 K; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY
• ISSN: 0022-4596; 1095-726X
• DOI: 10.1016/J.JSSC.2016.11.003

Pb{sub 2}Cr{sub 1+x}Mo{sub 1-x}O{sub 6} (−1≤x≤1/3) samples were synthesized via a high pressure and high temperature route. X-ray diffraction results suggest the samples crystallize in a disordered double perovskite structure (Pm-3m). X-ray photoemission spectroscopy results confirm the presence of Mo{sup 4+} for x=−1 and Mo{sup 6+} for x=1/3. The measured magnetic and electrical properties exhibit systematic change with increasing x. - Highlights: • A series of Pb{sub 2}Cr{sub 1+x}Mo{sub 1−x}O{sub 6} samples were synthesized under high pressure. • Magnetic and electrical properties of the series samples were investigated. • Valence states of Cr and Mo were determined through the analyses of XRD and XPS results. • Ground state of PbMoO{sub 3} were determined through the transport study and first-principles calculations.