分析了应用于磁性生物检测的GMR传感器的工作原理.直流磁控溅射法制备了Ni65Fe15CO20/Cu多层膜,研究了室温下多层膜的GMR效应对缓冲层(NiFeCo)厚度、间隔层(Cu)厚度及铁磁层(NiFeCo)厚度等参数的依赖关系,得到了GMR值达8.8%的多层膜样品:缓冲层(NiFeCo)5nm,间隔层(Cu)2.4nm,铁磁层(NiFeCo)1.6nm,且饱和场低、磁滞小、灵敏度较高,符合磁性生物检测技术的要求.制备了基于优化参数NiFeCo/Cu多层膜的GMR传感器,对器件的性能进行了测试,结果表明所制备的GMR传感器能够检测磁微球.
参考文献
| [1] | Baibich M N;Broto J M;Fert A et al.Giant magnetoresistance of(001)Fe/Cr magnetic superlattices[J].Physical Review Letters,1988,61(21):2472-2475. |
| [2] | Parkin S S P;More N;Roche K P .Oscillations in exchange coupling and magnetoresistance in metallic superlattice strtctures:Co/Ru,Co/Cr,and Fe/Cr[J].Physical Review Letters,1990,64(19):2304-2308. |
| [3] | Parkin S S P;Bhadra R;Roche K P .Oscillatory magnetic exchange coupling through thin copper layers[J].Physical Review Letters,1991,66(16):2152-2155. |
| [4] | Jimbo Mutsuko;Tsunashima Shigeru;Kanda Tatsuaya et al.Giant magnetoresistance in soft magnetic NiFeCo/Cu multilayers[J].Journal of Applied Physics,1993,74(05):3341-3344. |
| [5] | JIANG Hong-wei .Giant magnetoresistance in ferromagnetic metallic multilayers[J].Physica,1997,26(09):562-567. |
| [6] | 陈庆永,邵明辉,姜宏伟,郑鹉,王艾玲.不同缓冲层和保护层对NiFe/PtMn双层膜磁性的影响[J].功能材料与器件学报,2006(04):317-321. |
| [7] | David R Baselt;Gil U Lee;Mohan Natesan et al.A biosensor based on magnetoresistance technology[J].Biosensots & Bioelectronics,1998,13:731-739. |
| [8] | M M Miller;P E Sheehan;R L Edelstein et al.A DNA army sensor utilizing magnetic microbeads and magnetoelectronic detection[J].Journal of Magnetism and Magnetic Materials,2001,225:138-144. |
| [9] | J C Rife;M M Miller;P E Sheehan et al.Design and performance of GMR sensor for the detection of magnetic microbeads in biosensors[J].Sensors and Actuators,2003,A 107:209-218. |
| [10] | Graham DL.;Ferreira HA.;Freitas PP.;Cabral JMS. .High sensitivity detection of molecular recognition using magnetically labelled biomolecules and magnetoresistive sensors[J].Biosensors & Bioelectronics: The International Journal for the Professional Involved with Research, Technology and Applications of Biosensers and Related Devices,2003(4):483-488. |
| [11] | Li Guanxiong;Sun Shouheng;Wilson Robert J et al.Spin valve sensors for uhrasensitive detection of superparamagnetic nanoparticles for biological applications[J].Sensors and Actuators,2006,A 126:98-106. |
| [12] | Schotter J;Kamp PB;Becker A;Puhler A;Reiss G;Bruckl H .Comparison of a prototype magnetoresistive biosensor to standard fluorescent DNA detection[J].Biosensors & Bioelectronics: The International Journal for the Professional Involved with Research, Technology and Applications of Biosensers and Related Devices,2004(10):1149-1156. |
| [13] | Parker M.R.;Hossain S. .Low-field giant magnetoresistance in Co/Cu, CoFe/Cu and CoNiFe/Cu multilayer systems[J].IEEE Transactions on Magnetics,1994(2):358-363. |
| [14] | MAI Zhen-hong;XU Ming .The structure of metallic magnetic muhilayers and its effect on giant magnetoresistance[J].Physica,1999,2a(05):302-307. |
| [15] | Hossain SA.;Yang J.;Parker MR.;Pirkle BH. .GIANT MAGNETORESISTANCE MULTILAYERS OF HIGH THERMAL STABILITY WITH THICKER MAGNETIC LAYERS[J].Journal of Applied Physics,1996(8 Pt.2b):5817-5819. |
| [16] | Hossain S;Seah D;Qiu G et al.Hysteresis reduction in NiFeCo/Cu muhilayers exhibiting large low-field giant magnetoresistance[J].Journal of Applied Physics,1994,75(10):7067-7069. |
| [17] | Hong Xu;Longlan Cui;Naihu Tong .Development of High Magnetization Fe_3O_4/Polystyrene/SilIca Nanospheres via Combined Miniemulsion/Emulsion Polymerization[J].Journal of the American Chemical Society,2006(49):15582-15583. |
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