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Literature Study of Field-like Torques

This study delves into field-like torques through experiments by Li, Kubota, and Sankey, and theories by Theodonis and Li. The behavior of field-like torques derived from various phases is examined in detail.

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Literature Study of Field-like Torques

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  1. Literature Study of Field-like Torques Huanlong Liu

  2. Outline • Experiments: • Li(2008): Phase Diagram, FLT I|V|, change sign • Kubota(2008), Sankey(2008): ST-FMR, FLT  V2, do not change sign • Theory: • Theodonis(2006): tight-binding, FLT  V2, • Li(2008): inelastic tunneling, FLT I|V|,

  3. Experiments Li et al. PRL 100, 246602 (2008) Sankey et al. Nature Phys. 4, 67 (2008) Kubota et al Nature Phys. 4, 37 (2008)

  4. Theory Theodinis et al. PRL 97, 237205 (2006) Li et al. PRL 100, 246602 (2008)

  5. Only transverse component of δm,

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