Crystal Growth and Structure of the New Ferrimagnetic Oxyphosphate PbFe3O(PO4)3

被引：6

作者：

El Hafid, Hassan ^{[1
]}

Velazquez, Matias ^{[1
]}

Perez, Olivier ^{[2
]}

El Jazouli, Abdelaziz ^{[3
]}

Pautrat, Alain ^{[2
]}

Decourt, Rodolphe ^{[1
]}

Veber, Philippe ^{[1
]}

Viraphong, Oudomsack ^{[1
]}

Delmas, Claude ^{[1
]}

机构：

[1] Univ Bordeaux, CNRS, ICMCB, F-33608 Pessac, France

[2] Univ Caen, UMR 6508, CNRS, Lab Cristallog & Sci Mat, F-14050 Caen 04, France

[3] Univ Hassan II Mohammedia, Fac Sci Ben MSik, Lab Chim Mat Solides, URAC 17, Casablanca, Morocco

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2011年 / 36期

关键词：

Ferromagnetism; Magnetic properties; Phosphates; Phase transitions; Critical point phenomena; PRASEODYMIUM PENTAPHOSPHATE; MAGNETIC-PROPERTIES; ANTI-FERROMAGNET; SPIN-GLASS; LASER; FLUORESCENCE; OPERATION; DYNAMICS; DISORDER; SYSTEMS;

D O I：

10.1002/ejic.201100815

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new oxyphosphate, PbFe3O(PO4)3, has been discovered and its structure has been characterized by single-crystal XRD between 293 and 973 K (monoclinic, space groupP21/m, a = 7.5826 angstrom, b = 6.3759 angstrom, c = 10.4245 angstrom, beta = 99.956 degrees, Z = 2, at r.t.). Direct-current (DC) magnetic susceptibility and specific heat measurements performed on single crystals revealed an unusual sequence of second-order ferromagnetic-like phase transitions at Tc1 = 31.8 K, Tc2 = 23.4 K and Tc3 approximate to 10 K. Alternating-current (AC) magnetic susceptibility measurements suggest glass-like dynamics between ca. 20 K and Tc3.

引用

页码：5486 / 5495

页数：10

共 34 条

[1] Contrasted role of disorder for magnetic properties in an original mixed-valency iron phosphate [J].