Study on structural, magnetic and electrical properties of perovskite lanthanum strontium manganite nanoparticles

First-Principle Investigation of La0.7Ba0.3Mn(1-x)FexO3 Structural Properties Using CASTEP

“…This deliberate engineering profoundly influences the crystal structure and the resulting magnetization value of the material. Recent research in doping Lanthanum-based perovskites [5][6][7][8] strengthens the argument that explained doping on the La site of lanthanum manganate material induces the presence of two valence states for Mn ions, namely Mn 3+ and Mn 4+ , due to double exchange interaction events. Furthermore, doping on the Mn site influences the double exchange interaction, altering the material's structural properties.…”

Crystal structure, composition and valence state of cations in mixed-valence A1−xCdxMnO3 (A=Pr, La) ceramics

“…Manganese oxides with the perovskite structure are of great interest due to their physical properties which have significant potential for various applications [1][2][3][4][5][6][7][8][9][10]. For decades, steady interest has been focused on manganese compounds with a general formula A 1−x B x MnO 3 , where A is a rare earth element (La, Pr, Sm, Nb), and B, a divalent cation (Ca, Ba, Sr, Pb) [1,2].…”

“…The initial interest in these compounds stemmed from the discovery of a colossal magnetoresistance effect [3][4][5][6]. Later, a variety of intriguing magnetic and electrical effects were uncovered in these compounds [7][8][9][10][11][12][13][14][15][16], including the observation of both positive and negative temperature resistance coefficients [17], metal-insulator transitions [18], ferromagnetic-paramagnetic transitions [19,20], and charge ordering [21,22]. These properties make these materials promising for use in magnetic sensors [23], supercapacitors [24], and infrared bolometers [25,26].…”

Poly(vinyl alcohol)/sodium alginate/magnetite composites: magnetic force microscopy for tracking magnetic domains

“…[7][8][9] The morphology, size, elemental composition and crystal lattice of a single MNP or small clusters can be assessed by high-resolution electron microscopy (HRTEM). 10,11 The vibrating sample (VSM) and superconducting quantum interference device (SQUID) magnetometry techniques are used to measure magnetization and coercivity of MNPs and solid magnetic films. [12][13][14] However, these techniques fail to map the magnetic signals of a single nanoparticle or small MNP clusters distributed on the polymer matrix.…”