Low temperature synthesis, and magnetic and magnetotransport properties of a (La1 xLux)0.67Ca0.33MnO3(0  x  0.12) system

Das, Debashish; Raj, Manil; Srivastava, C. M.; Nigam, A. K.; Bahadur, D.; Malik, S.K.

doi:10.1088/0953-8984/16/34/020

Cited by 6 publications

(2 citation statements)

References 40 publications

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“…A powerful technique for describing materials is called the ac dynamic magnetic susceptibility [40,41]. It is defined as the differential response of the magnetization to an oscillating magnetic field dM/dH [42]. To define the nature of magnetic ordering of LT-1h, LT-3h, and LT-6h systems, the dynamic magnetic characteristics were investigated for four different frequencies equal to 0.9, 9.9, 99.9, and 999.9 Hz as presented by figures 11(a)-(c).…”

Section: Ac Magnetic Results and Analysismentioning

confidence: 99%

La_0.6X_0.1Te_0.3MnO₃ system with significant refrigerant capacity at low magnetic field and double magnetic entropy change peaks: effect of ball-milling time on physical and critical behaviors

et al. 2023

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We have investigated the ball-milling time effect on different physical properties of La0.6◻0.1Te0.3MnO3 system (LT) milled for 1 hour (LT-1h), 3 hours (LT-3h), and 6 hours (LT-6h). According to Williamson-Hall method, as the ball-milling duration is increased, the material's crystallite size decreases from approximately 145 to 99 nm for LT-1h and LT-6h, respectively. Electronic study was also investigated. The Zero-Field-Cooling and Field-Cooling (ZFC/FC) magnetization measurements illustrated that all the systems are presenting a ferromagnetic to paramagnetic phase transition around Curie temperature (TC). This transition is around 176, 182, and 183 K accompanied by a decrease in the magnitude in both ZFC and FC data. Thus, increasing the ball-milling time of the sample leads to the elevation of TC and does not enhance the magnitude of the magnetization the fact that it affects the magnetic interactions between atoms. By increasing the ball-milling duration, the proportion of homogeneity is increased, and the material becomes slightly more resilient, according to the Curie-Weiss law. Additionally, it is accompanied with an increase in coercivity and a decrease in the saturation magnetization and remanence. Based on the AC-susceptibility, raising the ball-milling time facilitates the appearance of a spin-glass (SG) state. The relative cooling power (RCP) value in the LT-1h sample at 2 T is 108 % (211.758 J/kg) compared to that of the Gd at 2 T. Consequently, the LT sample could be a permanent magnet in a magnetic refrigerator. Noting that raising the ball-milling time weakens the RCP. Both LT-1h and LT-3h systems are belonging to the tricritical mean field model. However, for LT-6h, the model changed and the best one became the 3D-Ising model. Hence, the ball-milling time influences also the universality class.

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Section: Ac Magnetic Results and Analysismentioning

confidence: 99%

La_0.6X_0.1Te_0.3MnO₃ system with significant refrigerant capacity at low magnetic field and double magnetic entropy change peaks: effect of ball-milling time on physical and critical behaviors

et al. 2023

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“…The effects of divalent alkaline-earth element substitution in the stoichiometric perovskite manganites Ln 1−x Ae x Mn 1−y M y O 3 have been extensively studied [3][4][5]. These studies show that the Curie temperature, T C , and the magnetoresistance (MR) are optimized for a Mn 4+ content of about 33%.…”

Section: Introductionmentioning

confidence: 99%

Structural, magnetic and magneto-transport studies on the (La_2/3Sm_1/3)_0.67Ba_0.33−xSr_xMnO₃(x= 0, 0.1, 0.2 and 0.33) manganites

Asthana¹,

Bahadur²

2007

J. Phys. D: Appl. Phys.

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The effect of substituting Sr for Ba on the magneto-transport and magnetic properties of the (La2/3Sm1/3)0.67Ba0.33MnO3 system has been investigated. The samples of (La2/3Sm1/3)0.67Ba0.33−xSrxMnO3 (x = 0.0, 0.1, 0.2 and 0.33) are synthesized by the citrate gel route and crystallize in an orthorhombic structure. The unit cell volume decreases while the metal–insulator transition temperature (TMI) increases with increasing Sr content. The atomic disorder, which is represented by the size variance, increases with Ba content. The small anomaly in ρ(T) due to the atomic disorder which leads to the different magnetic ordering followed by a broad metal–insulator transition is observed in Ba-rich systems. The peak at T* (small anomaly) is presumed to be due to spin-dependent interfacial tunnelling that causes the difference in magnetic order between the surface and the core. The suppression in the resistivity values with increasing Sr content could be due to the more symmetric MnO6 octahedra network. The paramagnetic phase coexists with the magnetically ordered phase between T* (∼TC) and TMI. The suppression of the metastable magnetic phase leads to the high magnetoresistance in Ba-rich samples. The transport data has been analysed using a small polaron correlated model. The magnetic behaviour may be understood by the Ising model. The overall magnetic behaviour could be accounted for by the competing antiferromagnetic and ferromagnetic interactions.

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Effect of interface coupling between polarization and magnetization in La0.7Pb0.3MnO3 (LPMO)/P(VDF-TrFE) flexible nanocomposite films

et al. 2022

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Low temperature synthesis, and magnetic and magnetotransport properties of a (La_1 xLu_x)_0.67Ca_0.33MnO₃(0 x 0.12) system

Abstract: We have been able to synthesize Lu +3

Cited by 6 publications

References 40 publications

La_0.6X_0.1Te_0.3MnO₃ system with significant refrigerant capacity at low magnetic field and double magnetic entropy change peaks: effect of ball-milling time on physical and critical behaviors

La_0.6X_0.1Te_0.3MnO₃ system with significant refrigerant capacity at low magnetic field and double magnetic entropy change peaks: effect of ball-milling time on physical and critical behaviors

Structural, magnetic and magneto-transport studies on the (La_2/3Sm_1/3)_0.67Ba_0.33−xSr_xMnO₃(x= 0, 0.1, 0.2 and 0.33) manganites

Effect of interface coupling between polarization and magnetization in La0.7Pb0.3MnO3 (LPMO)/P(VDF-TrFE) flexible nanocomposite films

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Low temperature synthesis, and magnetic and magnetotransport properties of a (La1 xLux)0.67Ca0.33MnO3(0 x 0.12) system

Abstract: We have been able to synthesize Lu +3

Cited by 6 publications

References 40 publications

La0.6X0.1Te0.3MnO3 system with significant refrigerant capacity at low magnetic field and double magnetic entropy change peaks: effect of ball-milling time on physical and critical behaviors

La0.6X0.1Te0.3MnO3 system with significant refrigerant capacity at low magnetic field and double magnetic entropy change peaks: effect of ball-milling time on physical and critical behaviors

Structural, magnetic and magneto-transport studies on the (La2/3Sm1/3)0.67Ba0.33−xSrxMnO3(x= 0, 0.1, 0.2 and 0.33) manganites

Effect of interface coupling between polarization and magnetization in La0.7Pb0.3MnO3 (LPMO)/P(VDF-TrFE) flexible nanocomposite films

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Low temperature synthesis, and magnetic and magnetotransport properties of a (La_1 xLu_x)_0.67Ca_0.33MnO₃(0 x 0.12) system

La_0.6X_0.1Te_0.3MnO₃ system with significant refrigerant capacity at low magnetic field and double magnetic entropy change peaks: effect of ball-milling time on physical and critical behaviors

La_0.6X_0.1Te_0.3MnO₃ system with significant refrigerant capacity at low magnetic field and double magnetic entropy change peaks: effect of ball-milling time on physical and critical behaviors

Structural, magnetic and magneto-transport studies on the (La_2/3Sm_1/3)_0.67Ba_0.33−xSr_xMnO₃(x= 0, 0.1, 0.2 and 0.33) manganites