Электронный каталог

Статья

Salamatin, D.A.
Some Magnetic Properties and Magnetocaloric Effects in the High-Temperature Antiferromagnet YbCoC&sub(2) / D.A.Salamatin, A.Velichkov, Z.Surowiec, [a.o.] // Magnetochemistry [Electronic resource]. – 2023. – Vol.9, No.6. – P.152. – URL: https://doi.org/10.3390/magnetochemistry9060152. – Bibliogr.:28.

The YbCoC2 compound, which crystallizes in a base-centered orthorhombic unit cell in the 𝐴𝑚𝑚2 space group CeNiC2 structure, is unique among Yb-based compounds due to the highest magnetic ordering temperature of 𝑇𝑁=27 K. Magnetization measurements have made it possible to plot the H-T magnetic phase diagram and determine the magnetocaloric effect of this recently discovered high-temperature heavy-fermion compound, YbCoC2. YbCoC2 undergoes spin transformation to the spin-polarized state through a metamagnetic transition in an external magnetic field. The transition is found to be of the first order. The dependencies of magnetic entropy change Δ𝑆𝑚(𝑇)—have segments with positive and negative magnetocaloric effects for Δ𝐻≤6 T. For Δ𝐻=9 T, the magnetocaloric effect becomes positive, with a maximum Δ𝑆𝑚(𝑇) value of 4.1 J (kg K)−1 at 𝑇𝑁 and a refrigerant capacity value of 56.6 J kg−1.



ОИЯИ = ОИЯИ (JINR)2023
Спец.(статьи,препринты) = С 326.3 - Ферми-системы. Спиновые системы
Спец.(статьи,препринты) = С 44 г - Физико-химические методы анализа элементов. Анализ с помощью ядерных методов
Спец.(статьи,препринты) = С 332 - Электромагнитные взаимодействия
Бюллетени = 5/024