Anti-site disorder driven short-range order and canted antiferromagnetism in inverse spinel LiNiVO4

Ranaut, Dheeraj; kumar, J.sanjeevi; Mukherjee, K.

doi:10.1016/j.jmmm.2023.170833

Cited by 5 publications

(4 citation statements)

References 45 publications

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“…The fit using equation ( 3 The curves show a broad hump followed by an upturn at low temperatures. This kind of hump in C m (T) data has also been observed in several frustrated systems owing to the presence of short-range magnetic correlations [31,32,37]. Hence, it can be said that the observed hump in the present case is possibly due to short-range magnetic correlations.…”

Section: Heat Capacitysupporting

confidence: 83%

“…This deviation, arising at much higher temperatures than θ CW , might be due to the robust spin fluctuation as a consequence of short-range magnetic correlations. This type of feature has also been reported for various systems such as LiNiVO 4 and BiGdO 3 [31,32]. In these systems also, AFM ordering takes place at temperatures much lower than θ CW .…”

Section: Magnetizationsupporting

confidence: 75%

“…The competition between these magnetic interactions and magnetic frustration (arising due to the stretched diamond geometry) will possibly lead to shortrange correlations at low temperatures. Similar behaviour has also been observed in other frustrated systems that have competing magnetic interactions [31,33]. Further, to explore the effect of magnetic field (H) on the ground state behaviour, the isothermal magnetization, i.e.…”

Section: Magnetizationsupporting

confidence: 55%

“…Similarly, in our case, a significant frustration may arise due to the competing interactions. Literature reports also suggest that the competing magnetic interactions can stabilize the short-range magnetic correlations in other systems [31].…”

Section: Structural Analysismentioning

confidence: 97%

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Enhanced cryogenic magnetocaloric performance and the existence of short-range magnetic correlations in frustrated diamond geometries

Kumar,

Mukherjee

2024

J. Phys. D: Appl. Phys.

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Magnetocaloric effect in cryogenic temperature regime has gained enormous attention due to its application in the field of cryogenic refrigeration technology, which is required for quantum computing, space sciences and basic research activities. In this context, Gd and Dy based frustrated systems are considered as promising cryogenic magnetocaloric materials. Hence, magnetic and magnetocaloric properties of GdTaO4, GdNbO4 and DyNbO4 are comprehensively investigated. Structural analysis suggest that these compounds crystallize in monoclinic structure, wherein magnetic ions form an elongated diamond geometry. The analysis of magnetization, heat capacity and field dependent magnetic entropy change confirm the presence of short-range magnetic correlations in these compounds. Additionally, a remarkably large magnetic entropy change, and relative cooling power are noted. The mechanical efficiency is found comparable (or even better) to those reported for good magnetic refrigerants. Our study suggests that GdTaO4, GdNbO4 and DyNbO4 can be regarded as promising cryogenic magnetic refrigerant materials.

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Section: Heat Capacitysupporting

confidence: 83%

Section: Magnetizationsupporting

confidence: 75%

Section: Magnetizationsupporting

confidence: 55%

Section: Structural Analysismentioning

confidence: 97%

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