Solid State Science and Technology, Vol. 20, No 1 & 2 (2012) 148-153

ISSN 0128-7389

148

EFFECT OF SINTERING DURATION ON MAGNETIC PROPERTIES OF

La0.67Sr0.33MnO3 PEROVSKITE

 

Chin Hui Wei*, Lim Kean Pah, Abdul Halim Shaari, Chen Soo Kien, Albert Gan,

Ng Siau Wei and Wong Jen Kuen

 

Department of Physics, Faculty of Science, Universiti Putra Malaysia,

43300 UPM Serdang, Selangor, Malaysia

*Corresponding author: huiweis2@hotmail.com

 

ABSTRACT

La0.67Sr0.33MnO3 (LSMO) powder has been prepared by conventional solid state method. The evolution of structure formation on magnetic properties via single-stage and multi-stage sintering process were studied. X-ray diffraction (XRD), scanning electron microscopy (SEM) and vibrating sample magnetometer (VSM) analysis showed that better crystallinity was observed in multi-stage sintered sample. The enhancement of crystallinity in multi-stage sintered sample is due to intermediate grinding process which provides more homogenous size, better diffusion and grain connection between particles. The increasing of crystallinity enhanced the magnetization for multi-stage sintered sample.

Keywords: crystallinity; magnetization; grain size

 

http://journal.masshp.net/wp-content/uploads/Journal/2012/Chin%20Hui%20Wei%20148-153.pdf

 

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