Effects of Ni2+ and Cr3+ Substitution at Mn-Site on Structural and Electrical Resistivity of Charge Ordered Divalent-Doped Sm0.5Ca0.5MnO3 Manganite

Muhammad Zulharni Taqzim Kamaruzzaman; Rozilah Rajmi; Nur Aina Hanum Abdulruhim; Norazila Ibrahim; Zakiah Mohamed

doi:10.56532/mjsat.v6iS1.788

Authors

Muhammad Zulharni Taqzim Kamaruzzaman Faculty of Applied Sciences, Universiti Teknologi MARA, Perlis Branch, 02600, Arau, Perlis, Malaysia https://orcid.org/0009-0003-9673-7858
Rozilah Rajmi Faculty of Applied Sciences, Universiti Teknologi MARA, Perlis Branch, 02600, Arau, Perlis, Malaysia https://orcid.org/0000-0002-1639-6172
Nur Aina Hanum Abdulruhim Faculty of Applied Sciences, Universiti Teknologi MARA, Perlis Branch, 02600, Arau, Perlis, Malaysia https://orcid.org/0009-0008-5429-6317
Norazila Ibrahim Faculty of Applied Sciences, Universiti Teknologi MARA, 40450, Shah Alam, Selangor, Malaysia
Zakiah Mohamed Faculty of Applied Sciences, Universiti Teknologi MARA, 40450, Shah Alam, Selangor, Malaysia

DOI:

https://doi.org/10.56532/mjsat.v6iS1.788

Keywords:

Sm-Based Manganite, Ni-Substitution, Cr-Substitution, Charge Ordered, Electrical Resistivity

Abstract

Perovskite manganites (R_1-xA_xMnO₃) are widely studied for their unique magneto-transport properties, especially the metal-insulator transitions. Sm_0.5Ca_0.5MnO₃ is a prototypical half-doped manganite known for its strong charge-ordering (CO) behaviour and high CO temperature (T_CO ≈ 270 K), which limits its practical applications due to persistent insulating characteristics. Throughout this study, the effect of partial Mn-site substitution with Ni²⁺and Cr³⁺ions in relation to the structural and electrical transport properties of Sm_0.5Ca_0.5Mn_1-xA_xO₃ (A = Ni, Cr; x = 0.07) is investigated to explore potential suppression of the CO state and the promotion of ferromagnetic metallic (FMM) behaviour. Polycrystalline of the samples were synthesized via solid-state reaction. X-ray diffraction tied with Rietveld refinement confirmed single-phase orthorhombic pnma structure across all samples. Substitution with Ni²⁺resulted in an increase in unit cell volume while Cr³⁺ substitution slightly reduced it and attributed to differences in ionic radii. Both substitutions reduced the Jahn–Teller distortion; however, Cr³⁺ was more effective due to its stronger coupling with the Mn–O–Mn network and enhanced double-exchange interactions. The Ni²⁺-substituted sample remains insulating, although its resistivity is reduced due to lattice disorder.In contrast, Cr³⁺ substitution induced a clear metallic-insulating transition at T_MI= 55 K (0 T) and 75 K (0.8 T), evidencing effective CO suppression and enhancement of double exchange driven FMM interactions. These findings demonstrate that Mn-site Cr³⁺substitution is a promising approach for destabilizing the CO state and inducing metallic behavior in strongly CO manganites with implications for future magnetoresistive and spintronic device applications.

References

Wang, H., Zhang, H., Su, K., Huang, S., Tan, W., & Huo, D. (2020). Structure, charge ordering, and magnetic properties of perovskite Sm0.5Ca0.5MnO3 manganite. Journal of Materials Science: Materials in Electronics, 31(17), 14421–14425. doi: https://doi.org/10.1007/s10854-020-04001-6

Giri, S. K., Yusuf, S. M., Mukadam, M. D., & Nath, T. K. (2014). Enhanced exchange bias effect in size modulated Sm0.5Ca0.5MnO3 phase separated manganite. Journal of Applied Physics, 115(9). doi: https://doi.org/10.1063/1.4867523

Xu, X., Li, Y., Hou, F., Cheng, Q., & Su, R. (2015). Effect of Co substitution on magnetic ground state in Sm0.5Ca0.5MnO3. Journal of Alloys and Compounds, 628, 89–96. doi: https://doi.org/10.1016/j.jallcom.2014.12.116

Rozilah, R., Ibrahim, N., & Yahya, A. K. (2019). Inducement of ferromagnetic–metallic phase and magnetoresistance behavior in charged ordered monovalent-doped Pr0.75Na0.25MnO3 manganite by Ni substitution. Solid State Sciences, 87, 64–80. doi: https://doi.org/10.1016/j.solidstatesciences.2018.11.005

Ariffiin, M., Ibrahim, N., Mohamed, Z., Yahya, A. K., Khan, N. A., & Khan, M. N. (2018). Revival of Metal-Insulator and Ferromagnetic-Paramagnetic Transitions by Ni Substitution at Mn Site in Charge-Ordered Monovalent Doped Nd0.75Na0.25MnO3 Manganites. Journal of Superconductivity and Novel Magnetism, 31(9), 2851–2868. doi: https://doi.org/10.1007/s10948-017-4521-7

Das, K., Banu, N., Das, I., & Dev, B. N. (2018). Magnetocaloric effect of polycrystalline Sm0.5Ca0.5MnO3 compound: Investigation of low temperature magnetic state. Solid State Communications, 274, 36–40. doi: https://doi.org/10.1016/j.ssc.2018.02.014

Li, Y., Cheng, Q., & Qi, D. (2012). CERAMICS Effects of Al doping upon ac susceptibility of Pr0.5Ca0.5MnO3. doi: https://doi.org/10.1016/j.ceramint.2012.07.072

Liu, Y., Kong, H., & Zhu, C. (2007). Coexistence of charge ordering and ferromagnetism in Nd0.5Ca0.5Mn1-xCoxO3 (x ≤ 0.1). Journal of Alloys and Compounds, 439(1–2), 33–36. doi: https://doi.org/10.1016/j.jallcom.2006.08.315

Pi, L., Hébert, S., Yaicle, C., Martin, C., Maignan, A., & Raveau, B. (2003). The Pr0.5Ca0.5Mn1-xCrx O3 series (0 x 0.5): evidence of steps in the magnetic and transport properties for a narrow composition range. In J. Phys.: Condens. Matter (Vol. 15). doi: https://doi.org/10.1088/0953-8984/15/17/322

Rajmi, R. (2023). Revival of Ferromagnetic-Metallic Phase and Emergence of Griffiths Phase via Ni and Cr Substitution in Charged-Ordered Pr0.75Na0.25MnO3 Manganite. Scientific Research Journal, 20(2), 53–69. doi: https://doi.org/10.24191/srj.v20i2.22185

Abdelhadi, M. M., & Ziq, K. A. (2013). Effect of mn-site doping with nickel on the electric and magnetic properties of Sm0.55Sr0.45MnO3 manganites. Journal of Superconductivity and Novel Magnetism, 26(5), 1445–1450. doi: https://doi.org/10.1007/s10948-012-1945-y

Sumaiyah, S., Ibrahim, N., Mohamed, Z., Rozilah, R., Kazmi, J., Masood, A., & Muhammed Ali, S. (n.d.). Tuning magnetic interaction by Cr substitution in Pr-based Pr0.75Na0.05K0.20Mn1-xCrxO3 (x = 0-0.05) monovalent doped manganites. doi: https://doi.org/10.2139/ssrn.4536478

Bartel, C. J., Sutton, C., Goldsmith, B. R., Ouyang, R., Musgrave, C. B., Ghiringhelli, L. M., & Scheffler, M. (2019). New tolerance factor to predict the stability of perovskite oxides and halides. doi: https://doi.org/10.1126/sciadv.aav0693

Rozilah, R., Ibrahim, N., Mohamed, Z., Yahya, A. K., Khan, N. A., & Khan, M. N. (2017). Inducement of ferromagnetic-metallic phase in intermediate-doped charge-ordered Pr0.75Na0.25MnO3 manganite by K+ substitution. Physica B: Condensed Matter, 521, 281–294. doi: https://doi.org/10.1016/j.physb.2017.07.001

Smari, M., Hamouda, R., Walha, I., Dhahri, E., Mompeán, F. J., & García-Hernández, M. (2015). Magnetic and magnetoresistance in half-doped manganite La0.5Ca0.5MnO3 and La0.5Ca0.4Ag0.1MnO3. Journal of Alloys and Compounds, 644, 632–637. doi: https://doi.org/10.1016/j.jallcom.2015.05.026

Bhaskar, A., Huang, M. S., & Liu, C. J. (2018). Suppression of charge ordering and thermal hysteresis of electronic transport and magnetisation in La0.5Ca0.5Mn1-xNixO3. Philosophical Magazine, 98(2), 139–154. doi: https://doi.org/10.1080/14786435.2017.1396376

Oumezzine, M., Peña, O., Kallel, S., Guizouarn, T., & Oumezzine, M. (2012). Structural studies and magnetic and transport properties of Cr-substituted La0.67Ba0.33Mn1-xCrxO3 (0 ≤ x ≤ 0.15) perovskites. Journal of Alloys and Compounds, 533, 33–40 doi: https://doi.org/10.1016/j.jallcom.2012.04.026

Carneiro, A. S., Fonseca, F. C., Jardim, R. F., & Kimura, T. (2003). Phase coexistence in Cr-doped Nd0.5Ca0.5MnO3 compounds. Journal of Applied Physics, 93(103), 8074–8076. doi: https://doi.org/10.1063/1.1540181

Asmira, N., Ibrahim, N., Mohamed, Z., & Yahya, A. K. (2018). Effect of Cr3+ substitution at Mn-site on electrical and magnetic properties of charge ordered Bi0.3Pr0.3Ca0.4MnO3 manganites. Physica B: Condensed Matter, 544, 34–46. doi: https://doi.org/10.1016/j.physb.2018.05.020

Vitayaya, O., Zul Nehan, P. Z., Munazat, D. R., Manawan, M. T. E., & Kurniawan, B. (2024). Magnetoresistance (MR) properties of magnetic materials. In RSC Advances (14(26), 18617–18645). doi: https://doi.org/10.1039/d4ra01989j

Zahrin, A., Azhar, N. A., Ibrahim, N., & Mohamed, Z. (2022). Structural, Magnetic, and Electrical Properties and Magnetoresistance of Monovalent K-Substituted La0.7Ba0.3-xKxMnO3 (x=0 and 0.04) Manganite. Condensed Matter, 7(3). doi: https://doi.org/10.3390/condmat7030051

Zawawi, R. A., Ibrahim, N., & Shamsuddin, S. (2018). Enhancement of Double-Exchange Mechanism in Charge-Ordered Pr0.7Na0.25MnO3 Ceramics by Cr Doped at Mn-Site. International Journal of Current Research in Science, Engineering & Technology, 1(Spl-1), 101. doi: https://doi.org/10.30967/ijcrset.1.s1.2018.101-105