English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse
  1. View item / 
  2. Item Summary

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

Crystal Structure and Magnetic Properties of a New Two-Dimensional S=1 Quantum Spin System Ni5(TeO3)4X2 (X = Cl, Br)

MPS-Authors
/persons/resource/persons280100

Johnsson,  M.
Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;
Former Scientific Facilities, Max Planck Institute for Solid State Research, Max Planck Society;

/persons/resource/persons280221

Lemmens,  P.
Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Johnsson, M., Törnroos, K. W., Lemmens, P., & Millet, P. (2003). Crystal Structure and Magnetic Properties of a New Two-Dimensional S=1 Quantum Spin System Ni5(TeO3)4X2 (X = Cl, Br). Chemistry of Materials, 15(1), 68-73.


Cite as: https://hdl.handle.net/21.11116/0000-000E-F963-A
Abstract
Two new transition-metal tellurium oxy-chlorides of the general
formula Ni-5(TeO3)(4)X-2 (X = Cl, Br) have been isolated during
the investigation of the ternary phase diagram NiO-NiCl2-TeO2.
They crystallize in the monoclinic s stem, space group C2/c,
and for the case of Ni-5(TeO3)(4)Cl-2 the unit cell is a =
19.5674(2) Angstrom, b = 5.2457(1) Angstrom, and c = 16.3084(1)
Angstrom, with beta = 125.289(1). The structure is layered and
built up of corner-connected [Ni5O17X2] entities, made of five
nickel(II) octahedra associated by edge and face sharing. The
tellurium(IV) atoms are fixed upon the nickel layers. Their
lone pairs E and the halogen atoms are packed in a double layer
perpendicular to the [010] direction. From the magnetic point
of view, this system provides a new 2D S = 1 quantum spin
system with antiferromagnetic superexchange interaction. The
magnetic susceptibility shows anomalies pointing to magnetic
ordering phenomena. The observed transition temperatures vary
with the interlayer separation.