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Crystal and magnetic structures of the layer Compound TlMnF~4~ by P. Nuñez; Dr. A. Tresaud; J. Grannce; P. Hagenmuller; W. Massa; D. Babel; A. Boireau; J. L. Soubeyroux is a Chemistry article available to read on EtoBox.

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The crystal structure and the magnetic properties of the fluoromanganate(II1) TlMnF, have been investigated. The structure has been refined down to R/wR of 0.057/0.043 in the monoclinic 12/a space group with the unit cell constants a = 539.7(2) pm; b = 544.1(2) pm; c = 1248.4(5) pm; / 3 = 90.19(3)O (Z = 4). TlMnF, is characterized by a layer structure formed of MnF, octahedra sharing their four equatorial corners. Within each octahedron the Mn-F distances range from 178 pm to 215 pm. The intralayer magnetic interaction (J/k) has been evaluated to be approximately -0.45 K by fitting the experimental susceptibility in the 10 -300 K range using the quadratic layer Heisenberg model. A 3 D-antiferromagnetic ordering occurs at T, = 4.2(5) K. The magnetic cell corresponds to the nuclear one but with a primitive symmetry. The magnetic structure has been refined down to R = 0.058 in the P2'/a' magnetic group. The Mn"' moments are colinear to the b-axis and show antiparallel ordering within the layers. ## Kristall-und magnetische Struktur von TIMnF,, einer Verbindung mit Schichtstruktur Inhaltsiibersicht. Die Kristallstruktur und die magnetischen Eigenschaften des Fluoromanganates(II1) TlMnF

Who reads Crystal and magnetic structures of the layer Compound TlMnF~4~?

Author

P. Nuñez; Dr. A. Tresaud; J. Grannce; P. Hagenmuller; W. Massa; D. Babel; A. Boireau; J. L. Soubeyroux

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley - V C H Verlag GmbbH & Co.; Wiley (ISSN 0372-7874)

Published

1992

Language

EN

Field

Chemistry (Physical Sciences)