A Magnetic Arithmetic Logic Device That Can Realize the Operation Function of Half Adder
An arithmetic logic, half adder technology, applied in the field of spintronics, can solve complex problems, achieve high output ratio, maintain non-volatile effect
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Embodiment 1
[0021] like figure 1 As shown, the magnetic half adder includes a magnetic unit part 101 , a differential negative resistance element part 102 , a three-terminal resistance network 103 and two current output channels 104 and 105 . The magnetic unit portion 101 includes two identical magnetic units 111 and 121 therein. MgO / CoFeB / Ta magnetic thin films were grown on thermally oxidized SiO2 / Si substrates by magnetron sputtering and vacuum annealed, and then processed into devices with the shapes shown in 111 and 121 by photolithography and reactive ion etching. Well-contact electrodes are deposited by sputtering on three ends of the device for external connection. Place two identical magnetic units 111 and 121 with figure 1 The illustrated approach is connected in parallel so that the transport properties of both magnetic units contribute to the overall device performance.
[0022] The differential negative resistance element part 102 includes four identical differential negat...
Embodiment 2
[0029] On the basis of the magnetic half adder 100, such as image 3 As shown, in the magnetic half adder 400 integrated with storage and operation, the ammeters 104 and 105 used to measure the output current are replaced with other two magnetic units 404 and 405 with upward magnetization directions, and at the same time, resistances with the magnetic units 404 and 405 are added. The constant value resistors 406 and 407 of the same value are used to compensate for the change in the relative magnitude of the current of each branch caused by the introduction of the magnetic units 404 and 405 .
[0030] The magnetic half adder 400 integrating the storage and computation is connected as shown in the figure, and current is introduced. Since the resistances 406 and 407 balance the influence of the resistances of the magnetic units 404 and 405 , the magnetic half adder 400 with integrated storage and operation can still be realized. figure 1 The half adder operation function of the ...
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