A comparative study of the structural, optical, magnetic and magnetocaloric properties of HoCrO3 and HoCr0.85Mn0.15O3 orthochromites

Kanwar, Komal; Coondoo, Indrani; Anas, Mohd; Malik, V. K.; Kumar, Pankaj; Kumar, Sandeep; Kulriya, P.K.; Kaushik, S. D.; Panwar, Neeraj

doi:10.1016/j.ceramint.2020.09.245

Cited by 13 publications

(2 citation statements)

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“…They are synthesized from the incorporation of rare-earth (R) and transition metal (M) atoms. Specifically, orthochromites (RCrO 3 ) [9], orthomanganites (RMnO 3 ), and orthoferrites (RFeO 3 ) have attracted considerable attention [10][11][12]. Orthochromites crystallize in the orthorhombic Pnma space group and exhibit a wide range of technologically relevant properties.…”

Section: Introductionmentioning

confidence: 99%

Integrated study of the structural and magnetic characteristics of Nd(Mn, Cr)_0.5O₃: exploring perovskite material

Altowairqi,

Shariq,

Alasmari

et al. 2024

Phys. Scr.

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In this work, a perovskite material, Nd(Mn,Cr)0.5O3, is synthesized by a sol-gel chemical route method, and the structural and magnetic properties of the prepared samples were studied for a range of annealing temperatures. The variation of structural parameters against annealing temperatures is analyzed via Rietveld refinement, and it exhibits orthorhombic cubic geometry with non-monotonically increasing lattice parameters. lattice strain is due to canting in the Cr3+ and Mn3+ ions and the presence of strain is also confirmed by the shifting of XRD peaks towards a higher 2θ angle. The obtained Goldschmidt tolerance factor is 0.87, which confirms the stability of the perovskite structure. The magnetic properties of the prepared samples show the ferromagnetic transition temperature ranging from 86.5 K to 82.2 K due to super-exchange interaction between Cr3+ and Mn3+ ions via oxygen ions. The stability in crystal structure, lower value of strain, and ferromagnetic nature at low temperature for the samples annealed up to1000 C may make this material applicable for magnetic data storage.

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Section: Introductionmentioning

confidence: 99%

Integrated study of the structural and magnetic characteristics of Nd(Mn, Cr)_0.5O₃: exploring perovskite material

Altowairqi,

Shariq,

Alasmari

et al. 2024

Phys. Scr.

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“…The negative magnetization occurs due to the antiparallel coupling between the Cr 3+ moments and rare-earth ion moments [14]. Since the last decade, researchers have also been exploring these materials for their usefulness as a low-temperature refrigerant employing the magnetocaloric effect, which is measured in terms of magnetic entropy change and relative cooling power [10][11][12][13][15][16][17][18][19][20]. Magnetic refrigeration involving solid materials is a cooling technology that is more efficient, inexpensive, safer and more environmentally friendly than the conventional vapor-compression-based technology.…”

Section: Introductionmentioning

confidence: 99%

Low-Temperature Magnetic and Magnetocaloric Properties of Manganese-Substituted Gd0.5Er0.5CrO3 Orthochromites

et al. 2022

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Rare-earth chromites have been envisioned to replace gas-based refrigeration technology because of their promising magnetocaloric properties at low temperatures, especially in the liquid helium temperature range. Here, we report the low-temperature magnetic and magnetocaloric properties of Gd0.5Er0.5Cr1−xMnxO3 (x = 0, 0.1, 0.2, 0.3, 0.4 and 0.5) rare-earth orthochromites. The Néel transition temperature (TN) was suppressed from 144 K for Gd0.5Er0.5CrO3 to 66 K for the Gd0.5Er0.5Cr0.5Mn0.5O3 compound. Furthermore, magnetization reversal was observed in the magnetization versus temperature behavior of the Gd0.5Er0.5Cr0.6Mn0.4O3 and Gd0.5Er0.5Cr0.5Mn0.5O3 compounds at 100 Oe applied magnetic field. The magnetic entropy change (−∆S) value varied from 16.74 J/kg-K to 7.46 J/kg-K, whereas the relative cooling power (RCP) ranged from 375.94 J/kg to 220.22 J/kg with a Mn ion concentration at 5 T field and around 7.5 K temperature. The experimental results were substantiated by a theoretical model. The present values of the magnetocaloric effect are higher than those of many undoped chromites, manganites and molecular magnets in the liquid helium temperature range.

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Environmentally Friendly Energy Harvesting Using Magnetocaloric Solid-State Nanoparticles as Magnetic Refrigerator

2021

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A comparative study of the structural, optical, magnetic and magnetocaloric properties of HoCrO3 and HoCr0.85Mn0.15O3 orthochromites

Cited by 13 publications

References 52 publications

Integrated study of the structural and magnetic characteristics of Nd(Mn, Cr)_0.5O₃: exploring perovskite material

Integrated study of the structural and magnetic characteristics of Nd(Mn, Cr)_0.5O₃: exploring perovskite material

Low-Temperature Magnetic and Magnetocaloric Properties of Manganese-Substituted Gd0.5Er0.5CrO3 Orthochromites

Environmentally Friendly Energy Harvesting Using Magnetocaloric Solid-State Nanoparticles as Magnetic Refrigerator

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A comparative study of the structural, optical, magnetic and magnetocaloric properties of HoCrO3 and HoCr0.85Mn0.15O3 orthochromites

Cited by 13 publications

References 52 publications

Integrated study of the structural and magnetic characteristics of Nd(Mn, Cr)0.5O3: exploring perovskite material

Integrated study of the structural and magnetic characteristics of Nd(Mn, Cr)0.5O3: exploring perovskite material

Low-Temperature Magnetic and Magnetocaloric Properties of Manganese-Substituted Gd0.5Er0.5CrO3 Orthochromites

Environmentally Friendly Energy Harvesting Using Magnetocaloric Solid-State Nanoparticles as Magnetic Refrigerator

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Integrated study of the structural and magnetic characteristics of Nd(Mn, Cr)_0.5O₃: exploring perovskite material

Integrated study of the structural and magnetic characteristics of Nd(Mn, Cr)_0.5O₃: exploring perovskite material