सामग्री विज्ञान और नैनो सामग्री जर्नल

खुला एक्सेस

हमारा समूह 1000 से अधिक वैज्ञानिक सोसायटी के सहयोग से हर साल संयुक्त राज्य अमेरिका, यूरोप और एशिया में 3000+ वैश्विक सम्मेलन श्रृंखला कार्यक्रम आयोजित करता है और 700+ ओपन एक्सेस जर्नल प्रकाशित करता है जिसमें 50000 से अधिक प्रतिष्ठित व्यक्तित्व, प्रतिष्ठित वैज्ञानिक संपादकीय बोर्ड के सदस्यों के रूप में शामिल होते हैं।

ओपन एक्सेस जर्नल्स को अधिक पाठक और उद्धरण मिल रहे हैं
700 जर्नल और 15,000,000 पाठक प्रत्येक जर्नल को 25,000+ पाठक मिल रहे हैं


Properties Elucidations of Mn-doped Ba0.7Sr0.3Ti1-xMnxO3 Ceramics

Jamal Uddin Ahamed, Robayet Ahasan, Fairoz Abida, MNI Khan

Ba0.7Sr0.3Ti1-xMnxO3 ceramic with fixed doping of Sr at Ba site and Mn doping with various concentrations at the Ti site has been carefully prepared with conventional solid state reaction technique. As the behavior of materials with the variation of frequency, electric field, and temperature is a focus of interest for technological advantage in the field of microelectronics, telecommunication and spintronics, we have evaluated different characteristics of the synthesized samples. X-ray diffraction and Scanning Electron Microscopy (SEM) were employed to measure structural and morphological properties of the prepared samples. XRD analysis confirm the tetragonality of the crystal and the volume of the unit cell is observed slightly different except for x=0.3, with the increase of Mn content. SEM images confirm increasing grain size with Mn doping. Dielectric constant and AC conductivity assessed the dielectric properties of Ba0.7Sr0.3Ti1-xMnxO3 in a wide frequency range from kHz to GHz region. This result reveals that with the concentration of Mn the dielectric constant also increases, most importantly for 30% Mn substance with Ti. The results also showed that there is a high dielectric constant at the KHz region for the sample which decreases with the upward frequency. Magnetic permeability was observed to increase with 10% and 30% Mn substitution. VSM data indicated that samples exhibit ferromagnetic properties with feeble coercive field and with the increase of Mn ion concentration ferromagnetic order also found to increase. The multiferroic materials that we have developed can be used in spintronic devices like memory devices, spin transistors, spin diodes, sensors.