Current Dependence of Spin Torque Switching Barrier

Abstract

The current dependence of the switching barrier for spin torque switching of an in-plane magnetized ferromagnet was studied. Two scaling currents, I_{c}$ and I_{c}^{*}(>I_{c}), were introduced to distinguish the magnetization stability. In the low-current region I<I_{c}, the switching barrier is linear to the current with another scaling current \tilde{I}_{c}, while such linear scaling does not hold in the high-current region I_{c} < I < I_{c}^{*}. The linear scaling is valid for the high temperature and the long current pulse duration time.

4 pages, 3 figures

References in corpus (5)

• Spin-torque switching: Fokker-Planck rate calculation
• Spin-transfer pulse switching: From the dynamic to the thermally activated regime
• Thermally assisted spin transfer torque switching in synthetic free layers
• Spin torque switching of an in-plane magnetized system in a thermally activated region
• Numerical Study on Spin Torque Switching in Thermally Activated Region

Cited by in corpus (3)

• Magnetization reversal condition for a nanomagnet within a rotating magnetic field
• Thermally activated switching rate of a nanomagnet in the presence of spin torque
• Current dependence of spin torque switching rate based on Fokker-Planck approach