脉冲电源制作镍纳米接触及其BMR效应

Using pulse source to electrodeposit Ni Nanocontacts and its BMR effect

通过不同电源制作结果的比较,我们发现采用高频脉冲电流源并在电沉积过程中施加磁场的方法,制作镍纳米接触.这样制备的样品其弹道磁电阻(BMR)更加明显稳定,成功率也得以大幅提高.在所测样品中BMR值最大可达13 500%,而在保存2个月后个别样品BMR依然明显稳定,这些为镍纳米接触BMR效应的研究和应用提供了必要条件.

Through comparing different electrical sources,we found using high-f（frequency） pulse current source to electrodeposit nanocontacts,applying magnetic field during the deposition process and covering the nanocontacts with glue when it is formed,these improvements make Ni nanocontacts stable and its success rate improved greatly.The BMR value could reach to 13 500% and even after keeping for two months very few samples still have obvious and stable BMR.All of these are necessary for our next step research and the practical application.