Magnetic Structures of the LiNi0.9Co0.1PO4 Crystal

• Published in: Surface investigation, x-ray, synchrotron and neutron techniques Vol. 15; no. 5; pp. 890 - 895
• Main Authors: Semkin, M. A., Urusova, N. V., Hoser, A., Beskrovnyi, A. I., Pirogov, A. N.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-09-2021; Springer Nature B.V
• Subjects: Antiferromagnetism; Chemistry and Materials Science; Crystal structure; Low temperature; Magnetic moments; Magnetic properties; Materials Science; Neutron diffraction; Neutrons; Phase transitions; Polycrystals; Single crystals; Surfaces and Interfaces; Thin Films; neutron scattering; single-crystal and polycrystalline samples; lithium orthophosphate; magnetometry
• ISSN: 1027-4510; 1819-7094
• DOI: 10.1134/S1027451021050165

We present the magnetic structures and properties of single crystal and polycrystalline samples LiNi
0.9
Co
0.1
PO
4
obtained by conventional self-flux (LiCl) growth from solution and glycerol-nitrate methods, respectively. The samples were studied with magnetic property measurement system, X-ray and neutron diffraction. A symmetry analysis of possible magnetic structures for the propagation vectors
k
C
= 0 and
k
IC
= (0,
k
, 0) was carried out. The magnetic structures in the LiNi
0.9
Co
0.1
PO
4
single crystal are commensurate (
k
C

=
0) and incommensurate (
k
IC
= (0,
k
, 0)) antiferromagnetic orders. The module
k
is equal 0.10–0.12 reciprocal lattice units at low temperatures. At 7 K, the magnetic moment of the 3
d
-ion is 2.0 μ
B
and decreases to zero at 21 K. The temperatures of magnetic phase transitions determined during magnetic property measurements are similar in single-crystal and polycrystalline samples. Single crystal neutron diffraction is made it possible to observe some details of the incommensurate structure.