Preparation, and Structural and Magnetic Properties of Ca Substituted Magnesium Ferrite with Composition MgCa<sub><i>x</i></sub>Fe<sub>2−<i>x</i></sub>O<sub>4</sub> (<svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" style="vertical-align:-0.162pt;width:12.65px;" id="M1" height="10.4375" version="1.1" viewBox="0 0 12.65 10.4375" width="12.65">
	
		
			<g transform="matrix(.022,-0,0,-.022,.062,10.1)"><path id="x1D465" d="M536 404q0 -17 -13.5 -31.5t-26.5 -14.5q-8 0 -15 10q-11 14 -25 14q-22 0 -67 -50q-47 -52 -68 -82l37 -102q31 -88 55 -88t78 59l16 -23q-32 -48 -68.5 -78t-65.5 -30q-19 0 -37.5 20t-29.5 53l-41 116q-72 -106 -114.5 -147.5t-79.5 -41.5q-21 0 -34.5 14t-13.5 37
q0 16 13.5 31.5t28.5 15.5q12 0 17 -11q5 -10 25 -10q22 0 57.5 36t89.5 111l-40 108q-22 58 -36 58q-21 0 -67 -57l-19 20q81 107 125 107q17 0 30 -22t39 -88l22 -55q68 92 108.5 128.5t74.5 36.5q20 0 32.5 -14t12.5 -30z"></path></g>

		
	
</svg> = 0.00, 0.01, 0.03, 0.05, 0.07)

<table>The saturation magnetization (<svg height="15.45" id="M113" style="vertical-align:-3.22282pt" version="1.1" viewbox="0 0 23.8125 15.45" width="23.8125" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.112)"><path d="M998 650l-8 -28q-71 -4 -86 -16t-22 -69l-50 -397q-3 -28 -4.5 -44t2 -29t6.5 -18.5t17 -10.5t24.5 -6.5t37.5 -3.5l-8 -28h-271l7 28q63 6 78 22t25 90l60 415h-2l-353 -552h-23l-130 536h-2l-70 -254q-44 -158 -47 -188q-5 -38 9 -51t71 -18l-6 -28h-241l8 28
q45 4 67 18.5t35 45.5q16 38 74 233l52 173q24 79 11.5 98t-89.5 26l6 28h177l136 -508l337 508h172z" id="x1D440"></path></g>
<g transform="matrix(.012,-0,0,-.012,17.412,15.187)"><path d="M457 488l-30 -3q-17 148 -131 148q-53 0 -84.5 -34.5t-31.5 -82.5q0 -42 25.5 -72t74.5 -62l33 -22q63 -42 95 -85t32 -102q0 -84 -67 -137t-163 -53q-58 0 -113 22t-70 43l-4 152l27 4q4 -32 15 -62.5t31 -59.5t53.5 -47t76.5 -18q56 0 92 35t36 96q0 39 -25 70t-78 68
l-31 22q-32 23 -53.5 41.5t-45 57t-23.5 77.5q0 82 58 132.5t156 50.5q46 0 101 -17l18.5 -6t17 -6t8.5 -3q-4 -55 0 -147z" id="x1D446"></path></g>
</svg>) as a function of temperature for pure and Ca substituted MgFe at a fixed field of 50 oersted.</table>

Journal of Materials

fig6

Figure 6

Figure 6: Preparation, and Structural and Magnetic Properties of Ca Substituted Magnesium Ferrite with Composition MgCa<sub><i>x</i></sub>Fe<sub>2−<i>x</i></sub>O<sub>4</sub> (<svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" style="vertical-align:-0.162pt;width:12.65px;" id="M1" height="10.4375" version="1.1" viewBox="0 0 12.65 10.4375" width="12.65">
	
		
			<g transform="matrix(.022,-0,0,-.022,.062,10.1)"><path id="x1D465" d="M536 404q0 -17 -13.5 -31.5t-26.5 -14.5q-8 0 -15 10q-11 14 -25 14q-22 0 -67 -50q-47 -52 -68 -82l37 -102q31 -88 55 -88t78 59l16 -23q-32 -48 -68.5 -78t-65.5 -30q-19 0 -37.5 20t-29.5 53l-41 116q-72 -106 -114.5 -147.5t-79.5 -41.5q-21 0 -34.5 14t-13.5 37
q0 16 13.5 31.5t28.5 15.5q12 0 17 -11q5 -10 25 -10q22 0 57.5 36t89.5 111l-40 108q-22 58 -36 58q-21 0 -67 -57l-19 20q81 107 125 107q17 0 30 -22t39 -88l22 -55q68 92 108.5 128.5t74.5 36.5q20 0 32.5 -14t12.5 -30z"></path></g>

		
	
</svg> = 0.00, 0.01, 0.03, 0.05, 0.07) 

Figure 6 | Preparation, and Structural and Magnetic Properties of Ca Substituted Magnesium Ferrite with Composition MgCaxFe2−xO4 (
	
		
			

		
	
 = 0.00, 0.01, 0.03, 0.05, 0.07) 

Journal of Materials

Preparation, and Structural and Magnetic Properties of Ca Substituted Magnesium Ferrite with Composition MgCaxFe2−xO4 ( = 0.00, 0.01, 0.03, 0.05, 0.07)

Figure 6

Preparation, and Structural and Magnetic Properties of Ca Substituted Magnesium Ferrite with Composition MgCa_xFe_2−xO₄ ( = 0.00, 0.01, 0.03, 0.05, 0.07)