Magnetocaloric Properties of Nanostructured La0.7-xBixSr0.3MnO3 (x=0.0, 0.1) Manganites Using Phenomenological Model

被引：13
|
作者：
Souza, Anita D. [1 ]
Daivajna, Mamatha [1 ]
机构：
[1] Manipal Acad Higher Educ, Manipal Inst Technol, Dept Phys, Manipal 576104, Karnataka, India
来源：
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2020年 / 33卷 / 06期
关键词：
Milling; Grain size; Magnetic entropy; Magnetocaloric effect; Theoretical model; MAGNETIC ENTROPY CHANGE; STRUCTURAL-CHARACTERIZATION; TRANSPORT-PROPERTIES; SUBSTITUTION; MAGNETORESISTANCE; TRANSITION; PREDICTION; COMPOUND; BEHAVIOR; CHARGE;
D O I：
10.1007/s10948-020-05428-y
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetocaloric properties of nanostructured pristine and Bi-doped La0.7Sr0.3MnO3 samples, synthesised by high-energy planetary ball milling, are presented here. The aim of the study is to understand the effect of milling time on magnetic entropy change, relative cooling power and change in specific heat. The magnetocaloric property, defined as the change in the magnetic entropy, has been determined by using a phenomenological model applied to the magnetic susceptibility plots. Replacing 10% La by Bi in La0.7Sr0.3MnO3 significantly alters the change in magnetic entropy. Correlation between the particle size and magnetic entropy is observed in the present study. As the milling time increases from 0 h (bulk) to 48 h, the particle size reduces causing significant modifications in the magnetocaloric properties.
引用
收藏
页码：1781 / 1788
页数：8
相关论文
共 50 条
  • [1] Magnetocaloric Properties of Nanostructured La0.7-xBixSr0.3MnO3 (x = 0.0, 0.1) Manganites Using Phenomenological Model
    Anita D. Souza
    Mamatha Daivajna
    Journal of Superconductivity and Novel Magnetism, 2020, 33 : 1781 - 1788
  • [2] Effect of Bi doping on magnetic and magnetocaloric properties of La0.7-xBixSr0.3MnO3 (0≤x≤0.4)
    Barik, S. K.
    Mahendiran, R.
    JOURNAL OF APPLIED PHYSICS, 2010, 107 (09)
  • [3] Electrical, thermal and magnetic properties of Bi doped La0.7-xBixSr0.3MnO3 manganites
    Daivajna, Mamatha D.
    Rao, Ashok
    Okram, G. S.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 617 : 345 - 351
  • [4] Effect of milling on structure and magnetism of nanocrystalline La0.7-xBixSr0.3MnO3 (x=0.35, 0.40) manganites
    Souza, Anita D.
    Rayaprol, Sudhindra
    Murari, M. S.
    Daivajna, Mamatha
    PHYSICA B-CONDENSED MATTER, 2021, 606
  • [5] Magnetic phase transformation in La0.7-xBixSr0.3MnO3 (0.25 ≤ x ≤ 0.40)
    Souza, Anita D.
    Rayaprol, Sudhindra
    Sagdeo, Archana
    Sinha, A. K.
    Daivajna, Mamatha
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2020, 511 (511)
  • [6] Effect of Bi Doping on Magnetoresistance in La0.7-xBixSr0.3MnO3
    Barik, S. K.
    Mahendiran, R.
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2011, 11 (03) : 2603 - 2606
  • [7] Effect of Bi3+ on magnetic properties of nanosized La0.7-xBixSr0.3MnO3
    Souza, D. Anita
    Rayaprol, Sudhindra
    Daivajna, D. Mamatha
    MATERIALS TODAY-PROCEEDINGS, 2021, 47 : 635 - 640
  • [8] Magnetocaloric effect and critical field analysis in Eu substituted La0.7-xEuxSr0.3MnO3 (x=0.0, 0.1, 0.2, 0.3) manganites
    Vadnala, Sudharshan
    Asthana, Saket
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2018, 446 : 68 - 79
  • [9] Structural, magnetic and magnetocaloric study of La0.7-xEuxSr0.3MnO3 (x=0.1, 0.2 and 0.3) manganites
    Bouderbala, A.
    Makni-Chakroun, J.
    Cheikhrouhou-Koubaa, W.
    Koubaa, M.
    Cheikhrouhou, A.
    Nowak, S.
    Ammar-Merah, S.
    CERAMICS INTERNATIONAL, 2015, 41 (06) : 7337 - 7344
  • [10] Magnetocaloric properties of (La1-xPrx)0.85K0.15MnO3 (x=0.0, 0.1, 0.3 and 0.5) perovskite manganites
    Akca, Gonul
    Cetin, Selda Kilic
    Gunes, Mustafa
    Ekicibil, Ahmet
    CERAMICS INTERNATIONAL, 2016, 42 (16) : 19097 - 19104
12345