Influence of interstitial and substitutional atoms on magnetocaloric effects in RNi compounds

Chzhan, V. B.; Kurganskaya, A. A.; Терешина, И. С.; Karpenkov, A. Yu.; Ovchenkova, I.A.; Tereshina-Chitrova, E. A.; Андреев, А.В.; Gorbunov, D. I.; Lushnikov, S. A.; Verbetsky, V.N.

doi:10.1016/j.matchemphys.2021.124455

Cited by 13 publications

(1 citation statement)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Magnetic refrigeration based on the magnetocaloric effect (MCE) is a promising alternative compared to the conventional gas compression-expansion technique [1][2][3][4][5][6][7][8]. The magnetocaloric effect of materials has been widely investigated experimentally and theoretically in order to better understand the fundamental physical properties of these materials [9][10][11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Structural, magnetic and magnetocaloric effect of pyrochlore iridate Er₂Ir₂O₇

et al. 2023

View full text Add to dashboard Cite

The structural, morphological, magnetic and magnetocaloric properties of Er2Ir2O7 are investigated. The X-ray diffraction analysis showed that Er2Ir2O7 has a cubic structure with the Fđ3m space group. Using Williamson-Hall (W-H) plot, the crystallite size was found to be smaller than that obtained from the SEM image. Magnetic measurements revealed a weak ferromagnetic transition at TC =140K, caused by the appearance of magnetic order of the Ir moments. ΔT (temperature at full width of half maxima) was estimated to be 27K and 40K for magnetic field changes of 40 kOe and 50 kOe, corresponding to the relative cooling power (RCP) values of 98 J/kg and 128 J/kg, respectively. Temperature-averaged Entropy Change (TEC) was calculated for all applied magnetic fields, and found to be slightly lower than (-∆S_M^max) values, indicating less hysteresis loss in the compound Er2Ir2O7 during the magnetic transition. This study provides a new pyrochlore material for MCE magnetocaloric applications.

show abstract