Thermodynamic properties of multiferroic Mg doped YbMnO3

Sattibabu, Bhumireddi; Bhatnagar, Anil K.; Samatham, S. Shanmukharao; Singh, Durgesh; Rayaprol, Sudhindra; Das, Dibakar; Siruguri, V.; Ganesan, V.

doi:10.1016/j.jallcom.2015.05.100

Cited by 12 publications

(3 citation statements)

References 15 publications

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“…The attained lattice parameters from the refinement data were well in agreement with the previously reported studies. 20 However, the goodness of fit values observed are quite high, which is due to the presence of the impurity phase. Upon doping Ho 3+ into Yb 3+ , a change in the lattice parameters can be observed due to the different ionic radii of Ho 3+ and Yb 3+ .…”

Section: Resultsmentioning

confidence: 98%

Effect of Ho³⁺ Doping on Structural and Magnetic Properties of Multiferroic YbMnO₃

Kishore Yadav,

K.,

et al. 2024

ECS J. Solid State Sci. Technol.

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Using the traditional solid-state reaction approach, multiferroic ceramics with the compositional formula Yb1-xHoxMnO3, where x = 0 to 0.4 with 0.1 variation were synthesized. The structural and magnetic properties of the prepared poly-crystalline samples Yb1-xHoxMnO3 were investigated to show the effect of higher magnetic moment Ho3+ ion over the Yb ion. X-ray diffraction was used to analyse the compound’s crystal structure and confirm that they have a hexagonal single-phase structure with a P63cm space group. The presence of functional groups and their shifting to lower frequency regions were revealed by Fourier-transform infrared spectroscopy. UV-Vis absorbance spectra were used to calculate the energy gap values, and the resultant data shows a decrease in band gap values with an increase in Ho3+ doping. Crystal deformation with the doping of Ho3+ was observed using Raman spectra. Room-temperature magnetic studies were used to reveal the paramagnetic nature of the samples and the increase in magnetic parameters due to the doping of the higher magnetic moment Ho3+ ion.

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Section: Resultsmentioning

confidence: 98%

Effect of Ho³⁺ Doping on Structural and Magnetic Properties of Multiferroic YbMnO₃

Kishore Yadav,

K.,

et al. 2024

ECS J. Solid State Sci. Technol.

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“…The increase in T N from 85 K for YbMnO 3 (ref. 16) to 94 K for Yb 0.8 Sc 0.2 MnO 3 sample also can be explained on the basis of smaller cell volume, which might lead to strong exchange interactions and therefore higher ordering temperatures.…”

Section: Magnetic Behaviorsmentioning

confidence: 97%

“…at a magnetic field H=1000 Oe. The increase in T N from 85 K for YbMnO 3[16] to 94 K for Yb 0.8 Sc 0.2 MnO 3 sample also can be explained on the basis of smaller cell volume, which might lead to strong exchange interactions and therefore higher ordering temperatures.Temperature variation of inverse magnetic susceptibility is plotted infig.2which shows that the Curie-Weiss (CW) law is well obeyed in temperature interval between 200 and 300 K in paramagnetic phase. A second anomaly (a kink) is observed at 90 K for x = 0.1 and 94 K for x= 0.2, as shown in the lower inset of figure 2, which correspond to the AFM ordering of the Mn 3+ moments and represent Neel temperatures (T N ) for these samples.…”

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confidence: 98%

Structural, magnetic and magnetocaloric properties of hexagonal multiferroic Yb_1−xSc_xMnO₃ (x = 0.1 and 0.2)

et al. 2015

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We have studied the effect of Sc doping on structural, magnetic and magnetocaloric properties of multiferroic Yb 1-x Sc x MnO 3 (x = 0.1 and 0.2) . X-ray powder diffraction shows that both samples crystallize in the hexagonal phase with P6 3 cm space group. The structural analysis shows decrease in lattice parameter a, decrease in cell volume of the hexagonal unit cell and decrease in the average bond length between Mn-O, with Sc substitution. Magnetic measurements show that the Néel temperature (T N ) increases from 90 K for x = 0.1 to 94 K for x = 0.2 sample. Isothermal magnetic curves show that the field variation in magnetization generates a metamagnetic transition. The maximum entropy change -∆S M max and the relative cooling power (RCP)of Yb 1-x Sc x MnO 3 are found to be 2.46± 0.40 J/mole-K and 38.5± 9 J /mol for x = 0.1 and 1.87± 0.31 J/mole-K and, 30.1± 8 J/mol for x = 0.2 with ∆H = 10 T. The rescaled magnetic entropy change curves for different applied fields collapse onto a single curve for materials with second-order phase transition. Polycrystalline samples of Yb 1-x Sc x MnO 3 (x = 0.1 and 0.2) were synthesized by the conventional solid state reaction method. High-purity (purity better than 99.9%) Yb 2 O 3 ,

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Specific heat of hexagonal Yb1−xSrxMnO3

Sattibabu

Bhatnagar

2017

J Therm Anal Calorim

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Thermodynamic properties of multiferroic Mg doped YbMnO3

Cited by 12 publications

References 15 publications

Effect of Ho³⁺ Doping on Structural and Magnetic Properties of Multiferroic YbMnO₃

Effect of Ho³⁺ Doping on Structural and Magnetic Properties of Multiferroic YbMnO₃

Structural, magnetic and magnetocaloric properties of hexagonal multiferroic Yb_1−xSc_xMnO₃ (x = 0.1 and 0.2)

Specific heat of hexagonal Yb1−xSrxMnO3

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Thermodynamic properties of multiferroic Mg doped YbMnO3

Cited by 12 publications

References 15 publications

Effect of Ho3+ Doping on Structural and Magnetic Properties of Multiferroic YbMnO3

Effect of Ho3+ Doping on Structural and Magnetic Properties of Multiferroic YbMnO3

Structural, magnetic and magnetocaloric properties of hexagonal multiferroic Yb1−xScxMnO3 (x = 0.1 and 0.2)

Specific heat of hexagonal Yb1−xSrxMnO3

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Effect of Ho³⁺ Doping on Structural and Magnetic Properties of Multiferroic YbMnO₃

Effect of Ho³⁺ Doping on Structural and Magnetic Properties of Multiferroic YbMnO₃

Structural, magnetic and magnetocaloric properties of hexagonal multiferroic Yb_1−xSc_xMnO₃ (x = 0.1 and 0.2)