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Crystal Growth and Structure of the New Ferrimagnetic Oxyphosphate PbFe 3 O(PO 4 ) 3
Author(s) -
El Hafid Hassan,
Velázquez Matias,
Pérez Olivier,
El Jazouli Abdelaziz,
Pautrat Alain,
Decourt Rodolphe,
Veber Philippe,
Viraphong Oudomsack,
Delmas Claude
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201100815
Subject(s) - monoclinic crystal system , chemistry , ferrimagnetism , crystallography , magnetic susceptibility , crystal structure , ferromagnetism , single crystal , magnetization , condensed matter physics , magnetic field , physics , quantum mechanics
A new oxyphosphate, PbFe 3 O(PO 4 ) 3 , has been discovered and its structure has been characterized by single‐crystal XRD between 293 and 973 K (monoclinic, space group P 2 1 / m , a = 7.5826 Å, b = 6.3759 Å, c = 10.4245 Å, β = 99.956°, 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 T c 1 = 31.8 K, T c 2 = 23.4 K and T c 3 ≈ 10 K. Alternating‐current (AC) magnetic susceptibility measurements suggest glass‐like dynamics between ca. 20 K and T c 3 .
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