Synthesis, structure, and properties of new perovskite PbVO3

被引：162

作者：

Shpanchenko, RV ^{[1
]}

Chernaya, VV

Tsirlin, AA

Chizhov, PS

Sklovsky, DE

Antipov, EV

Khlybov, EP

Pomjakushin, V

Balagurov, AM

Medvedeva, JE

Kaul, EE

Geibel, C

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119992, Russia

[2] Inst High Pressure Phys, Troitsk 142092, Russia

[3] ETH, Lab Neutron Scattering, CH-5232 Villigen, Switzerland

[4] PSI Villigen, CH-5232 Villigen, Switzerland

[5] JINR, Frank Lab Neutron Phys, Dubna 141980, Russia

[6] Inst Solid State Chem, Ekaterinburg 620249, Russia

[7] Max Planck Inst CPfS, D-01187 Dresden, Germany

来源：

CHEMISTRY OF MATERIALS | 2004年 / 16卷 / 17期

关键词：

D O I：

10.1021/cm049310x

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The new perovskite PbV03 was synthesized under high-temperature and high-pressure conditions. Its crystal structure (a = 3.80005(6) Angstrom, c = 4.6703(1) Angstrom, Z = 1, S.G. P4mm) contains isolated layers of corner-shared VO5 pyramids, which are formed instead of octahedra due to a strong tetragonal distortion (c/a = 1.23). The lead atom is shifted out of the center of the unit cell toward one of two [VO2]-layers due to the influence of the lone pair. This new perovskite exhibits a semiconductor-like rho(T) dependence down to 2 K. This behavior can be qualitatively explained by taking into account strong electron correlations in electronic structure calculations.

引用

页码：3267 / 3273

页数：7

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