Induced quadrupole effects near a crossover in a tetragonal TbLiF4 sheelite in a strong magnetic field up to 50 T

Kazei, Z. A.; Snegirev, V. V.; Broto, J. M.; Abdulsabirov, R. Yu.; Кораблева, С. Л.

doi:10.1134/s1063776112110040

Cited by 1 publication

(1 citation statement)

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“…The ΔT ad values at magnetization and demagnetization nearly coincide, which indicates the cycling ability. The largest ΔT ad value of LiTbF 4 was obtained at 4.2 K, which is as high as 30 K, consistent with a previous study 37 . It is reasonable that LiTbF 4 is FM in nature below 2.85 K, and the largest magnetic fluctuations are expected at a temperature slightly higher than T C .…”

Section: δT Ad Of Lirefsupporting

confidence: 92%

Ultralow-field magnetocaloric materials for compact magnetic refrigeration

et al. 2023

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Magnetic refrigeration around the liquid-helium temperature plays a critical role in many technological sectors. Even if gallium gadolinium garnet (GGG) has been regarded as the benchmark, its application is highly limited by the small magnetic entropy changes, the requirement of superconducting magnets, and the large device sizes. Here, we report that LiREF4 (RE = rare earth) single crystals exhibit significantly superior magnetocaloric performance levels to commercial GGG. Under a small magnetic field of 5 kOe, which can be easily achieved by a permanent magnet, the magnetic entropy change reaches a record-high value of 16.7 J kg−1 K−1 in LiHoF4 in contrast to the value of 1.0 J kg−1 K−1 in GGG. The combination of small driving fields, large entropy changes, and excellent thermal and/or magnetic reversibility enables this series to be employed as the ideal working material for compact magnetic refrigeration around the liquid-helium temperature.

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Section: δT Ad Of Lirefsupporting

confidence: 92%