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journal article·2025-03-01Open access

Magnetic structure of rare earth intermetallic compound Er6MnTe2: Neutron diffraction and magnetization study

R. Nirmala, Ganesh Jangam, A. Thamizhavel, A. V. Knotko, V. O. Yapaskurt, A. V. Morozkin

AIP Advances· Volume 15· Issue 3
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Abstract

Magnetic properties of polycrystalline Er6MnTe2 compound of hexagonal structure (Fe2P-type, non-centrosymmetric space group P-62m, no. 189, hP9) has been studied using dc magnetization measurements and powder neutron diffraction. The compound Er6MnTe2 orders ferromagnetically at 76 K (TC) and undergoes another transition at ∼10 K (Tm) within the ordered state. Magnetization shows a tendency to saturate at 2 K in fields of 70 kOe to 9.8 μB/Er3+. In the neutron diffraction data, commensurate magnetic reflections are present in the temperature range of 68 K to 48 K indicating collinear ferromagnetic ordering of Er sublattice with propagation vector (k0 = [0, 0, 0]). A non-collinear ferromagnetic ordering with moments in ab-plane is observed from about 38 K to 8 K. At TC, the moments at two Er sites (3f and 3g) are different whereas below Tm (i.e., at 8 K), both Er moments approach value of about 9 μB.
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Research context

Metals & alloys

OpenAlex topics: Rare-earth and actinide compounds · Magnetic Properties of Alloys · Magnetic and transport properties of perovskites and related materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics, Indian Institute of Technology Madras 1 , Chennai 600036,

Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research 2 , Mumbai 400005,

Department of Chemistry, Moscow State University 3 , Leninskie Gory, House 1, Building 3, GSP-2, Moscow 119991,

Faculty of Materials Science, Moscow State University 4 , Leninskie Gory, House 1, Building 73, GSP-1, Moscow 119991,

Department of Petrology, Geological Faculty, Moscow State University 5 , Leninskie Gory, Moscow 119992,

Funding

Department of Science and Technology, India · M. V. Lomonosov Moscow State University Program of Development

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