Investigating the impact of sodium (Na) dopant on the structural, morphological, optical, and magnetic properties of LaPrSrMnO3 perovskite nanoflakes

被引：3

作者：

Srinivasan, Padmavathi ^{[2
,3
]}

Sahadevan, Jhelai ^{[4
]}

Sankaran, Esakki Muthu ^{[1
]}

Kim, Ikhyun ^{[5
]}

Arangarasan, Viji ^{[6
]}

Paramasivam, Sivaprakash ^{[5
]}

机构：

[1] Karpagam Acad Higher Educ, Ctr Mat Sci, Dept Phys, Coimbatore 641021, India

[2] Karpagam Acad Higher Educ, Dept Phys, Coimbatore 641021, India

[3] Karpagam Coll Engn, Dept Phys, Coimbatore 641032, India

[4] Karpagam Acad Higher Educ, Ctr Mat Chem, Coimbatore 641021, India

[5] Keimyung Univ, Dept Mech Engn, Daegu 42601, South Korea

[6] Kongunadu Coll Engn & Technol, Dept Phys, Thottiyam 621215, Tamil Nadu, India

来源：

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS | 2024年 / 238卷 / 10期

基金：

新加坡国家研究基金会;

关键词：

nanoflake; hexagonal structure; ferromagnetism; exchange bias; ball mill and band gap; OXIDES;

D O I：

10.1515/zpch-2023-0490

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Here we report the structural, optical and magnetic properties of La0.4Pr0.25Na (x) Sr0.35-xMnO3 (x = 0, 0.05, and 0.1) synthesized using ball milling method. After milling, the precursors are calcinated at 1,200 degrees C for 12 h. The phase purity, crystal structure, lattice parameter, and crystallite size of the samples were determined using X-ray diffraction (XRD). The peaks from XRD provide the perovskite hexagonal structure with an R (3) over barc space group. Surface morphology shows the recreation of spherical structure to nanoflakes/layered structures. The ultraviolet-visible diffused reflectance spectroscopy (UV-vis DRS) study indicates that the decrease in the band gap is observed with the increase of Na content. The intensity of the luminescence peak decreases progressively with the increase of Na doping. The room temperature (RT) magnetization of the samples reveals weak ferromagnetism and shows a novel vertical shift in magnetization at room temperature.

引用

页码：1943 / 1957

页数：15

共 30 条

[1] Comparative study of optical phonons in the rhombohedrally distorted perovskites LaAlO3 and LaMnO3 [J].

Abrashev, MV ;

Litvinchuk, AP ;

Iliev, MN ;

Meng, RL ;

Popov, VN ;

Ivanov, VG ;

Chakalov, RA ;

Thomsen, C .

PHYSICAL REVIEW B, 1999, 59 (06) :4146-4153

[2]

Arroyo A., 2004, J MAGN MAGN MATER, P17

[3] Revealing the origin of the vertical hysteresis loop shifts in an exchange biased Co/YMnO3 bilayer [J].

Barzola-Quiquia, J. ;

Lessig, A. ;

Ballestar, A. ;

Zandalazini, C. ;

Bridoux, G. ;

Bern, F. ;

Esquinazi, P. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2012, 24 (36)

[4] Synthesis, characterization and microwave absorption properties of La0.6Sr0.4MnO3/polyaniline composite [J].

Cui, Kun ;

Cheng, Yulan ;

Dai, Jianming ;

Liu, Jieping .

MATERIALS CHEMISTRY AND PHYSICS, 2013, 138 (2-3) :810-816

[5]

Divya S., 2023, APPL NANOSCI, V13

[6] Vacancies at Mn-site in Mn3+ rich manganites:: a route to ferromagnetism but not to metallicity [J].

Hébert, S ;

Wang, B ;

Maignan, A ;

Martin, C ;

Retoux, R ;

Raveau, B .

SOLID STATE COMMUNICATIONS, 2002, 123 (6-7) :311-315

[7]

Jhelai S., MAT SCI ENG B, VB2022

[8] Improved NOx Reduction in the Presence of SO2 by Using Fe2O3-Promoted Halloysite-Supported CeO2-WO3 Catalysts [J].

Kang, Lin ;

Han, Lupeng ;

He, Jiebing ;

Li, Hongrui ;

Yan, Tingting ;

Chen, Guorong ;

Zhang, Jianping ;

Shi, Liyi ;

Zhang, Dengsong .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2019, 53 (02) :938-945

[9] The effect of strontium deficiency in Pr0.6Sr0.4MnO3 perovskite manganites [J].

Koubaa, W. Cheikhrouhou ;

Koubaa, M. ;

Cheikhrouhou, A. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (12) :4363-4366

[10] A bimetallic sulfide CuCo2S4 with good synergistic effect was constructed to drive high performance photocatalytic hydrogen evolution [J].

Li, Lingjiao ;

Xu, Jing ;

Ma, JinPing ;

Liu, Zeying ;

Li, Yanru .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2019, 552 :17-26

← 1 2 3 →