Magnetic and Structural Properties of MnBi1-xTix Alloys

作者：Zhang, Suyin; Zhang, Pengyue^*; Jiang, HuanChang; Shi, Yaojun; Yu, Nengjun; Ge, Hongliang

来源：Journal of Magnetics, 2014, 19(3): 205-209.

DOI：10.4283/JMAG.2014.19.3.205

• MnBi
• phase transition
• magnetic properties

MnBi1-xTix (x =0, 0.4, 0.7, 1) alloys were prepared by arc-melting, followed by heat treatment. X-ray diffraction (XRD) and vibrating sample magnetometer (VSM) were used to measure and investigate the phase structure and magnetic properties. The temperature dependent magnetization curves indicate that the phase transitions between LTP and HTP MnBi occur with heating or cooling in MnBi1-xTix(x <= 0.7) samples. However, MnTi samples are in MnBi1-xTix single-phase, with very low magnetic properties. Furthermore, the coercivity exhibits a positive temperature coefficient. The results show that the optimal content of Ti for the coercivity of MnBi1-xTix alloy is x = 0.4. For MnBi sample, the coercivity reaches a maximum value of 1.13 T at 550 K. However, the remanence and energy product show apparent decrease with the addition of Ti in MnBil. Ti. alloys.

• 出版日期2014-9
• 单位中国计量大学