Antiferromagnetism in α-Li3Fe2(PO4)3

J. L. Zarestky; D. Vaknin; B. C. Chakoumakos; T. Rojo; A. Goi; G. E. Barberis

doi:10.1016/S0304-8853(01)00425-5

Antiferromagnetism in α-Li₃Fe₂(PO₄)₃

J. L. Zarestky, D. Vaknin, B. C. Chakoumakos, T. Rojo, A. Goi, G. E. Barberis

Single Crystal Diffraction

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Neutron diffraction techniques have been used to determine the magnetic structure of Fe in monoclinic α-Li₃Fe₂(PO₄)₃. Rietveld analysis of the room temperature powder diffraction pattern confirms the monoclinic structure of the sample and is in agreement with previous studies. At low temperatures a paramagnetic to antiferromagnetic transition is observed at T_N = 30.0K. Our analysis shows that at T = 4K the two inequivalent Fe sites have antiparallel magnetic moments that are aligned along the a-axis. The average magnetic moment, gS = 5.0μ_B indicates homogeneous Fe³⁺ (S = 5/2).

Original language	English
Pages (from-to)	401-408
Number of pages	8
Journal	Journal of Magnetism and Magnetic Materials
Volume	234
Issue number	3
DOIs	https://doi.org/10.1016/S0304-8853(01)00425-5
State	Published - Sep 2001

Funding

Ames Laboratory is operated for the US\Department of Energy by Iowa State University under Contract No.\W-7405-Eng-82. The Director for Energy Research, Office of Basic Energy Sciences, supported the work at Ames. ORNL is managed for the US Department of Energy by UT-Battelle, LLC under contract DE-AC05-00OR22725.

Funders	Funder number
US Department of Energy	DE-AC05-00OR22725
Iowa State University

Keywords

Antiferromagnet
Crystal-structure
Lithium-iron-phosphate
Neutron-diffraction
Phase-transition

Access to Document

10.1016/S0304-8853(01)00425-5

Cite this

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title = "Antiferromagnetism in α-Li3Fe2(PO4)3",

abstract = "Neutron diffraction techniques have been used to determine the magnetic structure of Fe in monoclinic α-Li3Fe2(PO4)3. Rietveld analysis of the room temperature powder diffraction pattern confirms the monoclinic structure of the sample and is in agreement with previous studies. At low temperatures a paramagnetic to antiferromagnetic transition is observed at TN = 30.0K. Our analysis shows that at T = 4K the two inequivalent Fe sites have antiparallel magnetic moments that are aligned along the a-axis. The average magnetic moment, gS = 5.0μB indicates homogeneous Fe3+ (S = 5/2).",

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AU - Zarestky, J. L.

AU - Vaknin, D.

AU - Chakoumakos, B. C.

AU - Rojo, T.

AU - Goi, A.

AU - Barberis, G. E.

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AB - Neutron diffraction techniques have been used to determine the magnetic structure of Fe in monoclinic α-Li3Fe2(PO4)3. Rietveld analysis of the room temperature powder diffraction pattern confirms the monoclinic structure of the sample and is in agreement with previous studies. At low temperatures a paramagnetic to antiferromagnetic transition is observed at TN = 30.0K. Our analysis shows that at T = 4K the two inequivalent Fe sites have antiparallel magnetic moments that are aligned along the a-axis. The average magnetic moment, gS = 5.0μB indicates homogeneous Fe3+ (S = 5/2).

KW - Antiferromagnet

KW - Crystal-structure

KW - Lithium-iron-phosphate

KW - Neutron-diffraction

KW - Phase-transition

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