Studying the magnetic properties of CoSi single crystals

• Published in: Journal of experimental and theoretical physics Vol. 116; no. 5; pp. 780 - 784
• Main Authors: Narozhnyi, V. N., Krasnorussky, V. N.
• Format: Journal Article
• Language: English
• Published: Moscow Nauka/Interperiodica 01.05.2013; Springer
• Subjects: Classical and Quantum Gravitation; COBALT SILICIDES; CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DEFECTS; Disorder; Elementary Particles; IMPURITIES; MAGNETIC FIELDS; Magnetic properties; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; MONOCRYSTALS; NONLINEAR PROBLEMS; Order; PARAMAGNETISM; Particle and Nuclear Physics; Phase Transition In Condensed System; Physics; Physics and Astronomy; Quantum Field Theory; Relativity Theory; Solid State Physics; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0065-0273 K; Magnetic Center; Magnetic Impurity; Entire Temperature Range; Iron Impurity; Ideal Crystal
• ISSN: 1063-7761; 1090-6509
• DOI: 10.1134/S106377611305021X

The magnetic properties of CoSi single crystals have been measured in a range of temperatures T = 5.5–450 K and magnetic field strengths H ≤ 11 kOe. A comparison of the results for crystals grown in various laboratories allowed the temperature dependence of magnetic susceptibility χ( T ) = M ( T )/ H to be determined for a hypothetical “ideal” (free of magnetic impurities and defects) CoSi crystal. The susceptibility of this ideal crystal in the entire temperature range exhibits a diamagnetic character. The χ( T ) value significantly increases in absolute value with decreasing temperature and exhibits saturation at the lowest temperatures studied. For real CoSi crystals of four types, paramagnetic contributions to the susceptibility have been evaluated and nonlinear (with respect to the field) contributions to the magnetization have been separated and taken into account in the calculations of χ( T ).