Mössbauer-Effect, Magnetic, and Neutron-Diffraction Study of NaFeP₂O₇

R. C. Mercader; L. Terminiello; Gary J. Long; D. G. Reichel; K. Dickhaus; R. Zysler; R. Sanchez; M. Tovar

doi:10.1103/PhysRevB.42.25

Mössbauer-Effect, Magnetic, and Neutron-Diffraction Study of NaFeP₂O₇

R. C. Mercader
, L. Terminiello
, Gary J. Long
, D. G. Reichel
, K. Dickhaus
, R. Zysler
, R. Sanchez
, M. Tovar

Chemistry

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

Abstract

Neutron-diffraction, magnetic-susceptibility, specific-heat, and Mössbauer-effect studies of NaFeP ₂ O ₇ reveal that it is a normal Heisenberg isotropic three-dimensional antiferromagnetic material with a Néel temperature of 29.0 K. NaFeP ₂ O ₇ has the monoclinic P2 ₁ /c magnetic space group, which is the same as the nuclear crystallographic space group. The easy axis of magnetization lies in the monoclinic ac plane at an angle of 21.0° from the c axis. The specific-heat measurements reveal a λ-type anomaly at 28.7(2) K. A molecular-field model analysis indicates that the intrasublattice magnetic exchange coupling J _aa =J _bb =-0.37 cm-1, whereas the intersublattice coupling J _ab =-0.61 cm ^-1 . No evidence for L-type ferrimagnetism is observed.

Original language	American English
Journal	Physical Review B
Volume	42
DOIs	https://doi.org/10.1103/PhysRevB.42.25
State	Published - Jul 1 1990

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Chemistry

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@article{f727f85981f64320bdc46cd883d899d6,

title = "M{\"o}ssbauer-Effect, Magnetic, and Neutron-Diffraction Study of NaFeP₂O₇",

abstract = " Neutron-diffraction, magnetic-susceptibility, specific-heat, and M{\"o}ssbauer-effect studies of NaFeP 2 O 7 reveal that it is a normal Heisenberg isotropic three-dimensional antiferromagnetic material with a N{\'e}el temperature of 29.0 K. NaFeP 2 O 7 has the monoclinic P2 1 /c magnetic space group, which is the same as the nuclear crystallographic space group. The easy axis of magnetization lies in the monoclinic ac plane at an angle of 21.0° from the c axis. The specific-heat measurements reveal a λ-type anomaly at 28.7(2) K. A molecular-field model analysis indicates that the intrasublattice magnetic exchange coupling J aa =J bb =-0.37 cm-1, whereas the intersublattice coupling J ab =-0.61 cm -1 . No evidence for L-type ferrimagnetism is observed.",

author = "Mercader, \{R. C.\} and L. Terminiello and Long, \{Gary J.\} and Reichel, \{D. G.\} and K. Dickhaus and R. Zysler and R. Sanchez and M. Tovar",

year = "1990",

month = jul,

day = "1",

doi = "10.1103/PhysRevB.42.25",

language = "American English",

volume = "42",

journal = "Physical Review B",

issn = "1550-235X",

}

TY - JOUR

T1 - Mössbauer-Effect, Magnetic, and Neutron-Diffraction Study of NaFeP₂O₇

AU - Mercader, R. C.

AU - Terminiello, L.

AU - Long, Gary J.

AU - Reichel, D. G.

AU - Dickhaus, K.

AU - Zysler, R.

AU - Sanchez, R.

AU - Tovar, M.

PY - 1990/7/1

Y1 - 1990/7/1

N2 - Neutron-diffraction, magnetic-susceptibility, specific-heat, and Mössbauer-effect studies of NaFeP 2 O 7 reveal that it is a normal Heisenberg isotropic three-dimensional antiferromagnetic material with a Néel temperature of 29.0 K. NaFeP 2 O 7 has the monoclinic P2 1 /c magnetic space group, which is the same as the nuclear crystallographic space group. The easy axis of magnetization lies in the monoclinic ac plane at an angle of 21.0° from the c axis. The specific-heat measurements reveal a λ-type anomaly at 28.7(2) K. A molecular-field model analysis indicates that the intrasublattice magnetic exchange coupling J aa =J bb =-0.37 cm-1, whereas the intersublattice coupling J ab =-0.61 cm -1 . No evidence for L-type ferrimagnetism is observed.

AB - Neutron-diffraction, magnetic-susceptibility, specific-heat, and Mössbauer-effect studies of NaFeP 2 O 7 reveal that it is a normal Heisenberg isotropic three-dimensional antiferromagnetic material with a Néel temperature of 29.0 K. NaFeP 2 O 7 has the monoclinic P2 1 /c magnetic space group, which is the same as the nuclear crystallographic space group. The easy axis of magnetization lies in the monoclinic ac plane at an angle of 21.0° from the c axis. The specific-heat measurements reveal a λ-type anomaly at 28.7(2) K. A molecular-field model analysis indicates that the intrasublattice magnetic exchange coupling J aa =J bb =-0.37 cm-1, whereas the intersublattice coupling J ab =-0.61 cm -1 . No evidence for L-type ferrimagnetism is observed.

UR - https://scholarsmine.mst.edu/chem_facwork/917

U2 - 10.1103/PhysRevB.42.25

DO - 10.1103/PhysRevB.42.25

M3 - Article

SN - 1550-235X

SN - 2469-9969

VL - 42

JO - Physical Review B

JF - Physical Review B

ER -

Mössbauer-Effect, Magnetic, and Neutron-Diffraction Study of NaFeP₂O₇

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