Anisotropy of Magnetic Properties in Single Crystals of CH3NH3PbI3 Hybrid Perovskites

Hybrid metal-organic CH 3 NH 3 PbI 3 perovskites are promising materials for photovoltaics and optoelectronics, and the recently discovered magnetic and electrical ordering in them stimulates their potential applications in spintronics. The temperature (in the range of 5–300 K) and magnetic field (u...

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Bibliographic Details
Published in:JETP letters 2022-07, Vol.116 (1), p.48-53
Main Authors: Zhevstovskikh, I. V., Charikova, T. B., Klepikova, A. S., Popov, M. R., Stepanova, E. A., Semenova, O. I.
Format: Article
Language:English
Subjects:
Anisotropy
Antiferromagnetism
Atomic
Biological and Medical Physics
Biophysics
Condensed Matter
Crystallography
Diamagnetism
Ferromagnetism
Low temperature
Magnetic fields
Magnetic moments
Magnetic permeability
Magnetic properties
Magnetism
Magnetization
Molecular
Optical and Plasma Physics
Optoelectronics
Orthorhombic phase
Particle and Nuclear Physics
Perovskites
Phase transitions
Photovoltaic cells
Physics
Physics and Astronomy
Quantum Information Technology
Single crystals
Solid State Physics
Spintronics
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Summary:Hybrid metal-organic CH 3 NH 3 PbI 3 perovskites are promising materials for photovoltaics and optoelectronics, and the recently discovered magnetic and electrical ordering in them stimulates their potential applications in spintronics. The temperature (in the range of 5–300 K) and magnetic field (up to 50 kOe) dependences of the magnetization of CH 3 NH 3 PbI 3 single crystals for different directions of the magnetic field are measured. A strong anisotropy of the magnetic properties is found. If the magnetic field is perpendicular to the (001) crystallographic plane, the diamagnetic behavior of the magnetization is observed. If the field is oriented in the (001) plane, a transition from the ferromagnetic state to the paramagnetic state is revealed at a temperature of about 115 K. The features of the magnetic susceptibility observed in the low-temperature range are characteristic of the presence of antiferromagnetic correlations. In addition, in the CH 3 NH 3 PbI 3 hybrid perovskite, a relation between the magnetic properties and the structural phase transition from the tetragonal to the orthorhombic phase is determined. The effective magnetic moment equals 0.76μ B and 0.39μ B in the tetragonal and orthorhombic phases, respectively.
ISSN:0021-3640
1090-6487
DOI:10.1134/S0021364022601014