New type of incommensurate magnetic ordering in Mn(3)TeO(6)
2011 (English)In: Materials research bulletin, ISSN 0025-5408, E-ISSN 1873-4227, Vol. 46, no 11, 1870-1877 p.Article in journal (Refereed) Published
The complex metal oxide Mn(3)TeO(6) exhibits a corundum related structure and has been prepared both in forms of single crystals by chemical transport reactions and of polycrystalline powders by a solid state reaction route. The crystal structure and magnetic properties have been investigated using a combination of X-ray and neutron powder diffraction, electron microscopy, calorimetric and magnetic measurements. At room temperature this compound adopts a trigonal structure, space group R (3) over bar with a = 8.8679(1) angstrom. c = 10.6727(2) angstrom. A long-range magnetically ordered state is identified below 23 K. An unexpected feature of this magnetic structure is several types of Mn-chains. Under the action of the incommensurate magnetic propagation vector k = [0, 0, 0.4302(1)] the unique Mn site is split into two magnetically different orbits. One orbit forms a perfect helix with the spiral axis along the c-axis while the other orbit has a sine wave character along the c-axis.
Place, publisher, year, edition, pages
2011. Vol. 46, no 11, 1870-1877 p.
Magnetic materials, Oxides, Magnetic structure
Engineering and Technology Inorganic Chemistry
Research subject Chemistry with specialization in Inorganic Chemistry; Engineering Science with specialization in Solid State Physics
IdentifiersURN: urn:nbn:se:uu:diva-161440DOI: 10.1016/j.materresbull.2011.07.041ISI: 000296038700021OAI: oai:DiVA.org:uu-161440DiVA: diva2:456827