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Title: Magnetic structures of the {alpha}-Li{sub 3}Fe{sub 2}(PO{sub 4}){sub 3-} {sub x} (AsO{sub 4}) {sub x} (x=1, 1.5, 2, 3) solid solution

Abstract

Moessbauer spectroscopy and neutron diffraction studies have been carried out for the {alpha}-Li{sub 3}Fe{sub 2}(PO{sub 4}){sub 3-} {sub x} (AsO{sub 4}) {sub x} (x=1, 1.5, 2, 3) solid solution, potential candidate for the cathode material of the lithium secondary batteries. The crystal and magnetic structures of all these phases are based on the structural and magnetic model corresponding to the {alpha}-Li{sub 3}Fe{sub 2}(PO{sub 4}){sub 3} phosphate parent, but with some differences promoted by the arsenate substitution. The PO{sub 4} and AsO{sub 4} groups have a random distribution in the structure. In all compounds the coupling of the magnetic moments takes place in the (001) plane, but the value of the angle between the moments and the x direction decreases from 38.3 deg. ({alpha}-Li{sub 3}Fe{sub 2}(AsO{sub 4}){sub 3}) to 4.7{sup o} ({alpha}-Li{sub 3}Fe{sub 2}(PO{sub 4}){sub 2}(AsO{sub 4}){sub 1}). This rotation arises from the change in the tilt angle between the Fe(1)O{sub 6} and Fe(2)O{sub 6} crystallographically and magnetically independent octahedra in the structures, and affects the effectiveness of the magnetic exchange pathways. The ordering temperature T{sub N} decreases with the increase of phosphate amount in the compounds. The existence of a phenomenon of canting and the evolution of the ferrimagnetic behaviormore » in this solid solution is also discussed.« less

Authors:
 [1];  [1];  [2];  [3];  [3];  [3];  [2];  [1]
  1. Dpto. Quimica Inorganica, Facultad de Ciencia y Tecnologia, UPV/EHU, Apdo. 644, E-48080 Bilbao (Spain)
  2. Dpto. de Mineralogia y Petrologia, Facultad de Ciencia y Tecnologia, UPV/EHU, Apdo. 644, E-48080 Bilbao (Spain)
  3. Institut de Chimie de la Matiere Condensee de Bordeaux (ICMCB-CNRS), 33608 Pessac Cedex (France)
Publication Date:
OSTI Identifier:
20784834
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 179; Journal Issue: 1; Other Information: DOI: 10.1016/j.jssc.2005.09.048; PII: S0022-4596(05)00458-5; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ARSENATES; CRYSTAL STRUCTURE; ELECTRIC BATTERIES; IRON COMPOUNDS; LITHIUM COMPOUNDS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; MOESSBAUER EFFECT; NEUTRON DIFFRACTION; PHOSPHATES; SOLID SOLUTIONS

Citation Formats

Goni, Aintzane, Luis Mesa, Jose, Luis Pizarro, Jose, Fournes, Leopold, Wattiaux, Alain, Olazcuaga, Roger, Isabel Arriortua, Maria, and Rojo, Teofilo. Magnetic structures of the {alpha}-Li{sub 3}Fe{sub 2}(PO{sub 4}){sub 3-} {sub x} (AsO{sub 4}) {sub x} (x=1, 1.5, 2, 3) solid solution. United States: N. p., 2006. Web. doi:10.1016/j.jssc.2005.09.048.
Goni, Aintzane, Luis Mesa, Jose, Luis Pizarro, Jose, Fournes, Leopold, Wattiaux, Alain, Olazcuaga, Roger, Isabel Arriortua, Maria, & Rojo, Teofilo. Magnetic structures of the {alpha}-Li{sub 3}Fe{sub 2}(PO{sub 4}){sub 3-} {sub x} (AsO{sub 4}) {sub x} (x=1, 1.5, 2, 3) solid solution. United States. https://doi.org/10.1016/j.jssc.2005.09.048
Goni, Aintzane, Luis Mesa, Jose, Luis Pizarro, Jose, Fournes, Leopold, Wattiaux, Alain, Olazcuaga, Roger, Isabel Arriortua, Maria, and Rojo, Teofilo. 2006. "Magnetic structures of the {alpha}-Li{sub 3}Fe{sub 2}(PO{sub 4}){sub 3-} {sub x} (AsO{sub 4}) {sub x} (x=1, 1.5, 2, 3) solid solution". United States. https://doi.org/10.1016/j.jssc.2005.09.048.
@article{osti_20784834,
title = {Magnetic structures of the {alpha}-Li{sub 3}Fe{sub 2}(PO{sub 4}){sub 3-} {sub x} (AsO{sub 4}) {sub x} (x=1, 1.5, 2, 3) solid solution},
author = {Goni, Aintzane and Luis Mesa, Jose and Luis Pizarro, Jose and Fournes, Leopold and Wattiaux, Alain and Olazcuaga, Roger and Isabel Arriortua, Maria and Rojo, Teofilo},
abstractNote = {Moessbauer spectroscopy and neutron diffraction studies have been carried out for the {alpha}-Li{sub 3}Fe{sub 2}(PO{sub 4}){sub 3-} {sub x} (AsO{sub 4}) {sub x} (x=1, 1.5, 2, 3) solid solution, potential candidate for the cathode material of the lithium secondary batteries. The crystal and magnetic structures of all these phases are based on the structural and magnetic model corresponding to the {alpha}-Li{sub 3}Fe{sub 2}(PO{sub 4}){sub 3} phosphate parent, but with some differences promoted by the arsenate substitution. The PO{sub 4} and AsO{sub 4} groups have a random distribution in the structure. In all compounds the coupling of the magnetic moments takes place in the (001) plane, but the value of the angle between the moments and the x direction decreases from 38.3 deg. ({alpha}-Li{sub 3}Fe{sub 2}(AsO{sub 4}){sub 3}) to 4.7{sup o} ({alpha}-Li{sub 3}Fe{sub 2}(PO{sub 4}){sub 2}(AsO{sub 4}){sub 1}). This rotation arises from the change in the tilt angle between the Fe(1)O{sub 6} and Fe(2)O{sub 6} crystallographically and magnetically independent octahedra in the structures, and affects the effectiveness of the magnetic exchange pathways. The ordering temperature T{sub N} decreases with the increase of phosphate amount in the compounds. The existence of a phenomenon of canting and the evolution of the ferrimagnetic behavior in this solid solution is also discussed.},
doi = {10.1016/j.jssc.2005.09.048},
url = {https://www.osti.gov/biblio/20784834}, journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 1,
volume = 179,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2006},
month = {Sun Jan 15 00:00:00 EST 2006}
}