Electrical properties and magnetoelectric effect measurement in La0.7Ca0.2Sr0.1MnO3/xCoFe2O4 composites

Structural and magnetic properties of hard-soft BaFe12O19/(Zn0.5Co0.5)Fe2O4 ferrites

“…Furthermore, the XRD peaks of all samples did not show any alteration in their positions with the increase of (Zn 0.5 Co 0.5 )Fe 2 O 4 content. This is due to the weak diffusion of the two-phases system [22]. By using Maud software, lattice parameters, volume fractions, and crystallite sizes were estimated and listed in table 1.…”

Synthesis and characterization of La 0.75 Ca 0.15 Sr 0.05 Ba 0.05 MnO 3 –Ni 0.9 Zn 0.1 Fe 2 O 4 multiferroic composites

“…67 [14], LCMO/NiFe 2 O 4 [15][16][17], La 2/3 (Ca 0.6 Ba 0.4 ) 1/3 MnO 3 /NiFe 2 O 4 [18], La 0.7 Sr 0.3 MnO 3 /NiFe 2 O 4 [19], La 0.7 Sr 0.3 MnO 3 / CuFe 2 O 4 [20,21], La 0.7 Sr 0.3 MnO 3 /ZnFe 2 O 4 [22], La 0.67 Ca 0.33 MnO 3 / CuFe 2 O 4 [23], La 0.7 Sr 0.3 MnO 3 /CoFe 2 O 4 [24,25], La 0. 67 [29], La 2/3 Sr 1/3 MnO 3 /BaFe 12 O 19 [30], La 0.7 Sr 0.3 MnO 3 /SrFe 12 O 19 [31], and SrFe 12 O 19 /La 1 À x Ca x MnO 3 [32] with a view to enhance the magnetoresistance because the introduction of high resistivity second phase in the manganites has the barrier effect to the tunneling process and also causes the magnetic disorder near the grain boundary.…”

Effect of La3+ Substitution at Bi-Site on Transport Properties of Bi0.3-xLaxPr0.3Ca0.4Mn0.1Cr0.9MnO3

“…Quite recently, a number of works have been focused on mixed valence manganites of the type Ln 1-x D x MnO 3 , where Ln represents trivalent rare earth ions such as La, Pr, Nd, Eu , Y and D represents alkaline ions such as Ca, Sr, Pb, Ba due to its unique physical properties such as the observation of colossal magnetoresistance effect (CMR) and transition of metal to insulator behavior which simultaneously occur at the same temperature region of ferromagnetic to paramagnetic transition [1][2]. The CMR effect, which is a phenomena related to the change of resistivity attributed to the improvement of charge carrier spin alignment induced by external magnetic field has generated considerable interest due to its potential application such as in spintronic based technologies [1][2]. The observed physical phenomena of metal-insulator transition and the MR effect can be understood by the double exhange (DE) mechansim which involves the interaction between pairs of Mn 3+ and Mn 4+ ions as proposed by Zener [3].…”