Analysis of crystal structure and reflection loss of material based on La0.7Sr0.3Mn1-x(Ni, Ti)x/2O3 (x=0.1, 0.3, and 0.5) applications for microwave absorbers

Sitti Ahmiatri Saptari, Nada Hashida Lathifah, Arif Tjahjono, Deni Shidqi Khaerudini


In this research, structural engineering of lanthanum manganite material based on La0.7Sr0.3Mn1-x(Ni,Ti)x/2O3 (x = 0.1; 0.3 and 0.5) was synthesized using the sol-gel method. The prepared samples were then characterized using X-ray Diffraction (XRD) and Vector Network Analyzer (VNA). X-Ray Diffraction (XRD) characterization results obtained a single. Substitution of Ni and Ti ions with a concentration of x = 0.1; 0.3; and 0.5 indicate that the formed sample has a rhombohedral structure with a space group R -3c, the presence of Ni and Ti ion substitution does not cause a change in the structure but there is a change in the lattice parameters and crystal size. Vector Network Analyzer (VNA) characterization in the range of 8 – 12 GHz produces the most optimal reflection loss intensity value of -11.8 dB at an optimal frequency of 10.58 GHz at a concentration of x = 0.5 with the ability to absorb microwaves of 93.39%. Thus the material La0.7Sr0.3Mn1-x(Ni,Ti)x/2O3 (x = 0.1; 0.3 and 0.5) can be used as a microwave absorbent material.


LSMO, reflection loss, sol-gel

Full Text:



Admi, R. I. et al. 2021. “Synthesis and Characterization Microwave Absorber Properties of La0.7(Ca1-XSrx)0.3MnO3prepared by Sol-Gel Method.” Journal of Physics: Conference Series 1816(1): 0–7. Ahmiatri, Sitti, and Priyambodo. 2013. REKAYASA MATERIAL ABSORBER GELOMBANG. Jakarta: LP2M UIN SYarif HIdayatullah Jakarta. Ardani, Adinda, Sitti Ahmiatri Saptari, and Arif Tjahjono. 2021. “Analysis the Increased of Nickel Substitution on Crystal Structure and Magnetic Properties of Lanthanum Barium Manganate Material.” PROCEEDINGS OF THE 4TH INTERNATIONAL SEMINAR ON METALLURGY AND MATERIALS (ISMM2020): Accelerating Research and Innovation on Metallurgy and Materials for Inclusive and Sustainable Industry 2382(August): 040007. Ari Adi, Wisnu, Yosef Sarwanto, Yana Taryana, and Bambang Soegijono. 2018. “Effects of the Geometry Factor on the Reflection Loss Characteristics of the Modified Lanthanum Manganite.” Journal of Physics: Conference Series 1091(1). Elma, Muthia. 2018. Proses Sol-Gel Analisis, Fundamental Dan Aplikasi. Banjarmasin: Press, Lambung Mangkurat University. Gupta, Maneesha et al. 2012. “Low Temperature Synthesis and Magneto Resistance Study of Nano La 1-x Sr x MnO 3 ( x = 0 . 3 ,.” 3(December 2015). Lau, Lik Nguong et al. 2021. “The Physical Properties of Submicron and Nano-Grained La0.7sr0.3mno3 and Nd0.7sr0.3mno3 Synthesised by Sol–Gel and Solid-State Reaction Methods.” Coatings 11(3). Li, G. et al. 2002. “Attractive Microwave-Absorbing Properties of La1-XSrxMnO3 Manganite Powders.” Materials Chemistry and Physics 75(1–3): 101–4. Liang, Xiaohui et al. 2017. “Multiple Interfaces Structure Derived from Metal–Organic Frameworks for Excellent Electromagnetic Wave Absorption.” Particle and Particle Systems Characterization 34(5): 1–8. Liu, Jia Wei, Jian Jiang Wang, and Hai Tao Gao. 2018. “Infrared Emissivities and Microwave Absorption Properties of Perovskite La1-XCaxMnO3 (0≤x≤0.5).” Materials Science Forum 914: 96–101. Manjunatha, S. O. et al. 2015. “Effect of Ba Substitution on Structural, Electrical and Thermal Properties of La0.65Ca0.35-XBaxMnO3(0 ≤ x ≤ 0.25) Manganites.” Journal of Alloys and Compounds 619: 303–10. Masruroh, Algafari Manggara, Titus Papilaka, and Rahmad Triandi T. 2013. “Penentuan Ukuran Kristal Lapisan Tipis PZT Dengan Metode XRD Melalui Pendekatan Persamaan Debye Scherrer.” Jurusan Fisika dan Kimia FMIPA Universitas Brawijaya 1(2): 24–29. Saptari, Sitti Ahmiatri, Azwar Manaf, and Budhy Kurniawan. 2014. “Microwave Absorbing Properties of La0.67Ba0.33Mn1-XTixO3 in The Frequency Range 8 - 12 GHz.” international journal of basic & applied sciences 14(03). Saptari, Sitti, Azwar Manaf, and Budhy Kurniawan. 2014. “MICROWAVE ABSORBING PROPERTIES OF La0.67Ba0.33Mn1-XNiXO3.” Jurnal Sains Materi Indonesia 15(4): 183–86. Souza, Anita D et al. 2019. “Size Control on the Magnetism of La 0 . 7 Sr 0 . 3 MnO 3.” Journal of Alloys and Compounds 797: 874–82. Urushibara, A. et al. 1995. “Insulator-Metal Transition and Giant Magnetoresistance in La1-XSrxMnO3.” Physical Review B 51(20): 14103–9. Zhang, Shuyuan, and Quanxi Cao. 2012. “Electromagnetic and Microwave Absorption Performance of Some Transition Metal Doped La 0 . 7 Sr 0 . 3 Mn 1 − x TM x O 3 ± ı ( TM = Fe , Co or Ni ).” Materials Science & Engineering B 177(9): 678–84.


  • There are currently no refbacks.