- Anomalous Hall magnetoresistance in metastable... - AIP Publishing.
- Large spin hall magnetoresistance and its correlation.
- Observation of transverse spin Nernst magnetoresistance... - Nature.
- Interface-induced spin Hall magnetoresistance enhancement in Pt-based.
- Byong Guk Park - Google Scholar.
- Manipulation of spin Hall magnetoresistance and unidirectional spin.
- Giant spin Hall magnetoresistance in metallic bilayers.
- Efficient perpendicular magnetization switching by a magnetic.
- Large spin Hall magnetoresistance and its correlation to.
- (PDF) Large spin Hall magnetoresistance and its.
- PDF Large spin Hall magnetoresistance and its correlation to the spin-orbit.
- Large magnetoelectric resistance in the topological Dirac.
- Anomalous Hall magnetoresistance in a ferromagnet - Nature.
Anomalous Hall magnetoresistance in metastable... - AIP Publishing.
Spin current represents a flow of spin angular momentum carried by electrons. The spin Hall effect allows electrical generation of spin current in materials with strong spin-orbit interaction (SOI) ().The spin Hall angle, a material parameter that characterizes charge to spin conversion efficiency, scales with the longitudinal resistivity and the spin Hall conductivity ().
Large spin hall magnetoresistance and its correlation.
In recent years, spin Hall magnetoresistance (SMR) has emerged as an efficient way to probe the spontaneous magnetization state in ordered magnetic systems, by electrical current.... (NM) such as Pt with large spin orbit coupling (SOC) [ ] [ ]... In NGO with L=6, a strong correlation between spin and orbital angular momentum is expected. We review the so-called spin Hall magnetoresistance (SMR) in bilayers of a magnetic insulator and a metal, in which spin currents are generated in the normal metal by the spin Hall effect. The associated angular momentum transfer to the ferromagnetic layer and thereby the electrical resistance is modulated by the angle between the applied.
Observation of transverse spin Nernst magnetoresistance... - Nature.
In spite of this, the physical origin behind the conduction mechanism and its correlation with magnetoresistance, especially at low temperatures is still elusive. Recently, work on La–Ca–Mn–O manganites has been published , ,. In fact, there is no clear experimental evidence in the case of large bandwidth manganites such as La–Ba–Mn. We investigate the spin Hall magnetoresistance in thin-film bilayer heterostructures of the heavy metal Pt and the antiferromagnetic insulator NiO. While rotating an external magnetic field in the easy plane of NiO, we record the longitudinal and the transverse resistivity of the Pt layer and observe an amplitude modulation consistent with the spin Hall magnetoresistance. In comparison to Pt.
Interface-induced spin Hall magnetoresistance enhancement in Pt-based.
We investigate the spin Hall magnetoresistance (SMR) at room temperature in thin-film heterostructures of antiferromagnetic insulating (0001)-oriented α − Fe 2 O 3 (hematite) and Pt. We measure their longitudinal and transverse resistivities while rotating an applied magnetic field of up to 17 T in three orthogonal planes.
Byong Guk Park - Google Scholar.
It is worth noting that the maximum θAH value of 0.03 is comparable to the lower end of spin Hall angles reported for Pt (which itself is scattered over a large range) 46, but is two times as large.
Manipulation of spin Hall magnetoresistance and unidirectional spin.
Physical origin of the AMR: spin-orbit interaction effect: λL.S ⇒⇒⇒⇒It is expected to be large only in systems with large spin-orbit interaction and anisotropic charge distribution 1) It was shown in magnetoresistance measurements of rare-earth-doped gold that the AMR was large in all cases except for Gd, with L=0 (Gd +3 ⇒4f 7). The spin Hall effect in heavy metals generates spin current that enables control of magnetization of an nearby magnetic layer. Conversely, such flow of spin current can influence the transport. In this work, we show that a strong MPE from the neighbouring Ga,FeSb layer induces giant proximity magnetoresistance PMR approximately 80 at 14 T and a large spin-splitting energy E. Spin Hall magnetoresistance in paramagnetic NdGaO3. The spin Hall effect is of current interest from a fundamental and a device application point of view.
Giant spin Hall magnetoresistance in metallic bilayers.
Large Spin Hall Magnetoresistance and Its Correlation to the Spin-Orbit Torque in W/CoFeB/MgO Structures Scientific Reports - United Kingdom doi 10.1038/srep14668. This thermally induced magnetoresistance in a fm/hm bilayer, which can be called spin nernst magnetoresistance (snmr), originates from combined effects of two processes: (i) sne-induced spin. We attribute this significant SMR in W-based structures to the large effective spin Hall angle of W21,22. The spin Hall angle and the spin diffusion length of W are 0.22 0.03 and 2.0 0.5.
Efficient perpendicular magnetization switching by a magnetic.
The measured magnetoresistance of the nonlocal spin valve as a function of magnetic field is shown in Figure 13. The nonlocal spin valve removes the AMR contribution and the Hall effects of the ferromagnetic electrodes (Jedema et al., 2003). The magnetoresistance for the nonlocal spin valves show a similar change with varying magnetic field as.
Large spin Hall magnetoresistance and its correlation to.
. The transmission and reflection of the spin current depends on the relative orientation of the magnetization and spin polarization direction, leading to the change of resistance with magnetization direction, which is named as spin Hall magnetoresistance (SMR) [6], [7].
(PDF) Large spin Hall magnetoresistance and its.
More recently, a new magnetoresistance phenomenon has been discovered, the so-called spin Hall magnetoresistance (SMR) 21, 22, which is connected with the SHE and ISHE. The SMR behavior occurs when. Interconversion between charge and spin through spin-orbit coupling lies at the heart of condensed-matter physics. In normal metal/ferromagnet bilayers, a concerted action of the interconversions, the spin Hall effect and its inverse effect of normal metals, results in spin Hall magnetoresistance, whose sign is always positive regardless of the sign of spin Hall conductivity of normal metals. This implies the existence of an inverse effect, in which the conductivity in such structures should depend on the magnetization orientation. In this work, we report a systematic study of the magnetoresistance (MR) of W/CoFeB/MgO structures and its correlation with the current-induced torque to the magnetization.
PDF Large spin Hall magnetoresistance and its correlation to the spin-orbit.
Second-harmonic resistance ( R2ω) as a function of the magnetic field angle for a 4-nm α-Sn film. The data in ( A) were measured with a Hall bar whose length is along [11ˉ2] of the α-Sn film, while those in ( B) were measured with a Hall bar with its length along [1ˉ10]. OPEN IN VIEWER. Anomalous Hall magnetoresistance (AHMR) in single ferromagnetic layers arises from anomalous Hall effect induced spin current and its backflow. Here, we have studied the correlation between AHMR and weak ferromagnetism as well as the antiferromagnetic property in metastable FeMn layers.
Large magnetoelectric resistance in the topological Dirac.
The report of a systematic study of the magnetoresistance of W/CoFeB/MgO structures and its correlation with the current-induced torque to the magnetization demonstrates that MR in a non-magnet/ferromagnet structure can be utilized to understand other closely correlated spin-orbit coupling effects such as the inverse spin Hall effect or thespin. The spin-orbit interaction in heavy metal/ferromagnet/oxide structures has been extensively investigated because it can be employed in manipulation of the magnetization direction by in-plane current. This implies the existence of an inverse effect, in which the conductivity in such structures should depend on the magnetization orientation. In this work, we report a systematic study of the. (a) High resolution TEM image of the Pt/MnPSe3 bilayer cross-section, revealing a ~2-nm-thick granular layer interposing between the Van der Waals compound and the Pt film. The inset shows the.
Anomalous Hall magnetoresistance in a ferromagnet - Nature.
In this work, we show that a strong MPE from the neighbouring (Ga,Fe)Sb layer induces giant proximity magnetoresistance (PMR) (approximately 80% at 14 T) and a large spin-splitting energy ∆E. In magnetic multilayer systems, a large spin-orbit coupling at the interface between heavy metals and ferromagnets can lead to intriguing phenomena such as the perpendicular magnetic anisotropy,.
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