Simultaneous determination of effective spin-orbit torque fields in magnetic structures with in-plane anisotropy

Luo, Feilong; Goolaup, S.; Law, Wai Cheung; Li, Sihua; Tan, Funan; Engel, Christian; Zhou, Tiejun; Lew, Wen Siang

doi:10.1103/physrevb.95.174415

Cited by 21 publications

(12 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also, the switch to an in-plane magnetization configuration, which also could be responsible for a first harmonic Hall resistance state between the ±z-axis magnetized states. However, the second harmonic Hall resistance, then, follows another relationship as explained elsewhere [61,96]. This observation is consistent with the imaged DWM in section 3.…”

Section: Probing Of Current-induced Domain Wall Depinning Field Modulsupporting

confidence: 88%

Current-induced spin-orbit torque effective fields in multilayer structures with perpendicular magnetic anisotropy

Engel¹

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Probing Of Current-induced Domain Wall Depinning Field Modulsupporting

confidence: 88%

Current-induced spin-orbit torque effective fields in multilayer structures with perpendicular magnetic anisotropy

Engel¹

Self Cite

View full text Add to dashboard Cite

show abstract

“…For the high temperature FMR measurement setup, the signal trace length for the grounded coplanar waveguide (GCPW) was elongated to minimize heat transfer to the end launch connectors [28,29]. A ceramic jig was created to confine the heating to the sample, as well as a sample holder made of silver to minimize Oersted field arising from the ceramic heating element.…”

Section: Methodsmentioning

confidence: 99%

High temperature ferromagnetic resonance study on pMTJ stacks with diffusion barrier layers

Law¹,

Tahmasebi²,

Tan³

et al. 2018

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

We investigate the impact of Ru, Mo and W as an insertion layer between the second MgO and the top electrode in dual-MgO pMTJ stacks on the free layer magnetic properties from 25 °C to 260 °C. The insertion of Ru helps to improve the room temperature thermal stability by 97% in comparison to the control sample as its closely packed structure and large grain size suppresses interlayer diffusion. The effective anisotropy field (H eff) of these samples were found to decay linearly at an increased rate as compared to the areal moment (M s t) for the range of temperature measured through high temperature ferromagnetic resonance spectrometer and vibrating sample magnetometer. Furthermore, the extrapolated H eff values across all samples having the same free layer composition converge towards zero at T = 325 °C, independent of the initial H eff values measured at room temperature. Our measurement reveals that the free layer saturation magnetization plays a more significant role than H eff in achieving higher thermal stability at typical MRAM operating temperatures.

show abstract

“…Hall effect in Pt heavy metal layer. Following these works, various experimental methods have been proposed to measure the Rashba field and SL-field in such structures and the SL field is found to be dominated over the Rashba field [87][88][89][90] .…”

Section: Spin-orbit Torque Induced Domain Wall Dynamicsmentioning

confidence: 99%

“…These effective fields are direct measurements of the SOTs strength. So far, a large amount of the work has been dedicated to quantify the SOTs strength in single FM layers with perpendicular 83 , inplane 88,153,163 and modulated magnetic anisotropies [164][165][166] . However, the SAF structures have been proposed for realization of DW based memory devices with high packing density 22 .…”

Section: Motivationmentioning

confidence: 99%

Current-driven domain wall dynamics in coupled ferromagnetic structures

Krishnia¹

View full text Add to dashboard Cite

I would like to thank Mr. Funan for his assistance in developing the Labview codes. I thank to Mr. Feilong and Mr. Shane for helping me in the SOT measurements. I would like to acknowledge my other group members Christian, Sihua, Liu Ning, Andita, Wai Cheung, Shawn and Desmond for their help in many ways. I would like to thank Mr. Felix Bögelspacher from KIT Germany for his assistance in irradiating our magnetic memory samples. I also would like to thank Prof. J. Ding and Dr. Herng from NUS Singapore for their help in hysteresis characterizations of our magnetic thin films. I am so grateful to my parents for the freedom and support they have given me since my school days. My father always believed in me and encouraged me to purse higher studies from the world class universities. My younger brother Vipin and cousin Deepika always stand beside me in all the situations.

show abstract

Simultaneous determination of effective spin-orbit torque fields in magnetic structures with in-plane anisotropy

Abstract: Simultaneous determination of effective spin-orbit torque elds in magnetic structures with in-plane anisotropy. Physical Review B, 95, article no. 174415. For guidance on citations see FAQs.

Cited by 21 publications

References 56 publications

Current-induced spin-orbit torque effective fields in multilayer structures with perpendicular magnetic anisotropy

Current-induced spin-orbit torque effective fields in multilayer structures with perpendicular magnetic anisotropy

High temperature ferromagnetic resonance study on pMTJ stacks with diffusion barrier layers

Current-driven domain wall dynamics in coupled ferromagnetic structures

Contact Info

Product

Resources

About