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钟智勇
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期刊论文
Changing the exchange bias of spin valves by means of current pulses: Role of the Joule heating
JOURNAL OF APPLIED PHYSICS 105(2009)073914-1-073914-4 ，-0001，（）：
In-plane alternating pulses of current applied with an external magnetic field that changes the strength and direction of the exchange bias are observed in NiFe/Cu/NiFe/FeMn spin valves. To provide clear evidence of this spin-polarized current for antiferromagnets incorporated in spin valves, a series of measurements was carried out to rule out the influence of Joule heating caused by the pulse. The measurements revealed that Joule heating plays a minor role in the impact of exchange bias, thus providing more convincing evidence of the spin torque exerted on the interfacial antiferromagnetic moments.
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