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C. K. Ong - One of the best experts on this subject based on the ideXlab platform.

  • influence of static and dynamic dipolar fields in bulk yig thin film nife systems probed via spin Rectification Effect
    Journal of Magnetism and Magnetic Materials, 2017
    Co-Authors: Wee Tee Soh, Bin Peng, Z.j. Tay, N L Yakovlev, C. K. Ong
    Abstract:

    Abstract The characteristics of the static and dynamic components of the dipolar fields originating from a bulk polycrystalline yttrium iron garnet (YIG) substrate are probed by depositing a NiFe (Permalloy) layer on it, which acts as a detector. By measuring dc voltages generated via spin Rectification Effect (SRE) within the NiFe layer under microwave excitation, we characterize the influence of dipolar fields from bulk YIG on the NiFe layer. It is found that the dynamic YIG dipolar fields modify the self-SRE of NiFe, driving its own Rectification voltages within the NiFe layer, an Effect we term as non-local SRE. This non-local SRE only occurs near the simultaneous resonance of both YIG and NiFe. On the other hand, the static dipolar field from YIG manifests itself as a negative anisotropy in the NiFe layer which shifts the latter’s ferromagnetic resonance frequency.

  • Influence of static and dynamic dipolar fields in bulk YIG/thin film NiFe systems probed via spin Rectification Effect
    Journal of Magnetism and Magnetic Materials, 2017
    Co-Authors: Wee Tee Soh, Bin Peng, Z.j. Tay, Nikolai Yakovlev, C. K. Ong
    Abstract:

    Abstract The characteristics of the static and dynamic components of the dipolar fields originating from a bulk polycrystalline yttrium iron garnet (YIG) substrate are probed by depositing a NiFe (Permalloy) layer on it, which acts as a detector. By measuring dc voltages generated via spin Rectification Effect (SRE) within the NiFe layer under microwave excitation, we characterize the influence of dipolar fields from bulk YIG on the NiFe layer. It is found that the dynamic YIG dipolar fields modify the self-SRE of NiFe, driving its own Rectification voltages within the NiFe layer, an Effect we term as non-local SRE. This non-local SRE only occurs near the simultaneous resonance of both YIG and NiFe. On the other hand, the static dipolar field from YIG manifests itself as a negative anisotropy in the NiFe layer which shifts the latter’s ferromagnetic resonance frequency.

  • non local detection of spin dynamics via spin Rectification Effect in yttrium iron garnet sio2 nife trilayers near simultaneous ferromagnetic resonance
    AIP Advances, 2015
    Co-Authors: Wee Tee Soh, Bin Peng, C. K. Ong
    Abstract:

    The spin Rectification Effect (SRE), a phenomenon that generates dc voltages from ac microwave fields incident onto a conducting ferromagnet, has attracted widespread attention due to its high sensitivity to ferromagnetic resonance (FMR) as well as its relevance to spintronics. Here, we report the non-local detection of yttrium iron garnet (YIG) spin dynamics by measuring SRE voltages from an adjacent conducting NiFe layer up to 200 nm thick. In particular, we detect, within the NiFe layer, SRE voltages stemming from magnetostatic surface spin waves (MSSWs) of the adjacent bulk YIG which are excited by a shorted coaxial probe. These non-local SRE voltages within the NiFe layer that originates from YIG MSSWs are present even in 200 nm-thick NiFe films with a 50 nm thick SiO2 spacer between NiFe and YIG, thus strongly ruling out the mechanism of spin-pumping induced inverse spin Hall Effect in NiFe as the source of these voltages. This long-range influence of YIG dynamics is suggested to be mediated by dyna...

  • non local detection of spin dynamics via spin Rectification Effect in yttrium iron garnet sio2 nife trilayers near simultaneous ferromagnetic resonance
    AIP Advances, 2015
    Co-Authors: Wee Tee Soh, Bin Peng, C. K. Ong
    Abstract:

    The spin Rectification Effect (SRE), a phenomenon that generates dc voltages from ac microwave fields incident onto a conducting ferromagnet, has attracted widespread attention due to its high sensitivity to ferromagnetic resonance (FMR) as well as its relevance to spintronics. Here, we report the non-local detection of yttrium iron garnet (YIG) spin dynamics by measuring SRE voltages from an adjacent conducting NiFe layer up to 200 nm thick. In particular, we detect, within the NiFe layer, SRE voltages stemming from magnetostatic surface spin waves (MSSWs) of the adjacent bulk YIG which are excited by a shorted coaxial probe. These non-local SRE voltages within the NiFe layer that originates from YIG MSSWs are present even in 200 nm-thick NiFe films with a 50 nm thick SiO2 spacer between NiFe and YIG, thus strongly ruling out the mechanism of spin-pumping induced inverse spin Hall Effect in NiFe as the source of these voltages. This long-range influence of YIG dynamics is suggested to be mediated by dynamic fields generated from YIG spin precession near YIG/NiFe interface, which interacts with NiFe spins near the simultaneous resonance of both spins, to generate a non-local SRE voltage within the NiFe layer.

  • Non-local detection of spin dynamics via spin Rectification Effect in yttrium iron garnet/SiO2/NiFe trilayers near simultaneous ferromagnetic resonance
    AIP Advances, 2015
    Co-Authors: Wee Tee Soh, Bin Peng, C. K. Ong
    Abstract:

    The spin Rectification Effect (SRE), a phenomenon that generates dc voltages from ac microwave fields incident onto a conducting ferromagnet, has attracted widespread attention due to its high sensitivity to ferromagnetic resonance (FMR) as well as its relevance to spintronics. Here, we report the non-local detection of yttrium iron garnet (YIG) spin dynamics by measuring SRE voltages from an adjacent conducting NiFe layer up to 200 nm thick. In particular, we detect, within the NiFe layer, SRE voltages stemming from magnetostatic surface spin waves (MSSWs) of the adjacent bulk YIG which are excited by a shorted coaxial probe. These non-local SRE voltages within the NiFe layer that originates from YIG MSSWs are present even in 200 nm-thick NiFe films with a 50 nm thick SiO2 spacer between NiFe and YIG, thus strongly ruling out the mechanism of spin-pumping induced inverse spin Hall Effect in NiFe as the source of these voltages. This long-range influence of YIG dynamics is suggested to be mediated by dyna...

Wee Tee Soh - One of the best experts on this subject based on the ideXlab platform.

  • influence of static and dynamic dipolar fields in bulk yig thin film nife systems probed via spin Rectification Effect
    Journal of Magnetism and Magnetic Materials, 2017
    Co-Authors: Wee Tee Soh, Bin Peng, Z.j. Tay, N L Yakovlev, C. K. Ong
    Abstract:

    Abstract The characteristics of the static and dynamic components of the dipolar fields originating from a bulk polycrystalline yttrium iron garnet (YIG) substrate are probed by depositing a NiFe (Permalloy) layer on it, which acts as a detector. By measuring dc voltages generated via spin Rectification Effect (SRE) within the NiFe layer under microwave excitation, we characterize the influence of dipolar fields from bulk YIG on the NiFe layer. It is found that the dynamic YIG dipolar fields modify the self-SRE of NiFe, driving its own Rectification voltages within the NiFe layer, an Effect we term as non-local SRE. This non-local SRE only occurs near the simultaneous resonance of both YIG and NiFe. On the other hand, the static dipolar field from YIG manifests itself as a negative anisotropy in the NiFe layer which shifts the latter’s ferromagnetic resonance frequency.

  • Influence of static and dynamic dipolar fields in bulk YIG/thin film NiFe systems probed via spin Rectification Effect
    Journal of Magnetism and Magnetic Materials, 2017
    Co-Authors: Wee Tee Soh, Bin Peng, Z.j. Tay, Nikolai Yakovlev, C. K. Ong
    Abstract:

    Abstract The characteristics of the static and dynamic components of the dipolar fields originating from a bulk polycrystalline yttrium iron garnet (YIG) substrate are probed by depositing a NiFe (Permalloy) layer on it, which acts as a detector. By measuring dc voltages generated via spin Rectification Effect (SRE) within the NiFe layer under microwave excitation, we characterize the influence of dipolar fields from bulk YIG on the NiFe layer. It is found that the dynamic YIG dipolar fields modify the self-SRE of NiFe, driving its own Rectification voltages within the NiFe layer, an Effect we term as non-local SRE. This non-local SRE only occurs near the simultaneous resonance of both YIG and NiFe. On the other hand, the static dipolar field from YIG manifests itself as a negative anisotropy in the NiFe layer which shifts the latter’s ferromagnetic resonance frequency.

  • non local detection of spin dynamics via spin Rectification Effect in yttrium iron garnet sio2 nife trilayers near simultaneous ferromagnetic resonance
    AIP Advances, 2015
    Co-Authors: Wee Tee Soh, Bin Peng, C. K. Ong
    Abstract:

    The spin Rectification Effect (SRE), a phenomenon that generates dc voltages from ac microwave fields incident onto a conducting ferromagnet, has attracted widespread attention due to its high sensitivity to ferromagnetic resonance (FMR) as well as its relevance to spintronics. Here, we report the non-local detection of yttrium iron garnet (YIG) spin dynamics by measuring SRE voltages from an adjacent conducting NiFe layer up to 200 nm thick. In particular, we detect, within the NiFe layer, SRE voltages stemming from magnetostatic surface spin waves (MSSWs) of the adjacent bulk YIG which are excited by a shorted coaxial probe. These non-local SRE voltages within the NiFe layer that originates from YIG MSSWs are present even in 200 nm-thick NiFe films with a 50 nm thick SiO2 spacer between NiFe and YIG, thus strongly ruling out the mechanism of spin-pumping induced inverse spin Hall Effect in NiFe as the source of these voltages. This long-range influence of YIG dynamics is suggested to be mediated by dyna...

  • non local detection of spin dynamics via spin Rectification Effect in yttrium iron garnet sio2 nife trilayers near simultaneous ferromagnetic resonance
    AIP Advances, 2015
    Co-Authors: Wee Tee Soh, Bin Peng, C. K. Ong
    Abstract:

    The spin Rectification Effect (SRE), a phenomenon that generates dc voltages from ac microwave fields incident onto a conducting ferromagnet, has attracted widespread attention due to its high sensitivity to ferromagnetic resonance (FMR) as well as its relevance to spintronics. Here, we report the non-local detection of yttrium iron garnet (YIG) spin dynamics by measuring SRE voltages from an adjacent conducting NiFe layer up to 200 nm thick. In particular, we detect, within the NiFe layer, SRE voltages stemming from magnetostatic surface spin waves (MSSWs) of the adjacent bulk YIG which are excited by a shorted coaxial probe. These non-local SRE voltages within the NiFe layer that originates from YIG MSSWs are present even in 200 nm-thick NiFe films with a 50 nm thick SiO2 spacer between NiFe and YIG, thus strongly ruling out the mechanism of spin-pumping induced inverse spin Hall Effect in NiFe as the source of these voltages. This long-range influence of YIG dynamics is suggested to be mediated by dynamic fields generated from YIG spin precession near YIG/NiFe interface, which interacts with NiFe spins near the simultaneous resonance of both spins, to generate a non-local SRE voltage within the NiFe layer.

  • Non-local detection of spin dynamics via spin Rectification Effect in yttrium iron garnet/SiO2/NiFe trilayers near simultaneous ferromagnetic resonance
    AIP Advances, 2015
    Co-Authors: Wee Tee Soh, Bin Peng, C. K. Ong
    Abstract:

    The spin Rectification Effect (SRE), a phenomenon that generates dc voltages from ac microwave fields incident onto a conducting ferromagnet, has attracted widespread attention due to its high sensitivity to ferromagnetic resonance (FMR) as well as its relevance to spintronics. Here, we report the non-local detection of yttrium iron garnet (YIG) spin dynamics by measuring SRE voltages from an adjacent conducting NiFe layer up to 200 nm thick. In particular, we detect, within the NiFe layer, SRE voltages stemming from magnetostatic surface spin waves (MSSWs) of the adjacent bulk YIG which are excited by a shorted coaxial probe. These non-local SRE voltages within the NiFe layer that originates from YIG MSSWs are present even in 200 nm-thick NiFe films with a 50 nm thick SiO2 spacer between NiFe and YIG, thus strongly ruling out the mechanism of spin-pumping induced inverse spin Hall Effect in NiFe as the source of these voltages. This long-range influence of YIG dynamics is suggested to be mediated by dyna...

Bin Peng - One of the best experts on this subject based on the ideXlab platform.

  • influence of static and dynamic dipolar fields in bulk yig thin film nife systems probed via spin Rectification Effect
    Journal of Magnetism and Magnetic Materials, 2017
    Co-Authors: Wee Tee Soh, Bin Peng, Z.j. Tay, N L Yakovlev, C. K. Ong
    Abstract:

    Abstract The characteristics of the static and dynamic components of the dipolar fields originating from a bulk polycrystalline yttrium iron garnet (YIG) substrate are probed by depositing a NiFe (Permalloy) layer on it, which acts as a detector. By measuring dc voltages generated via spin Rectification Effect (SRE) within the NiFe layer under microwave excitation, we characterize the influence of dipolar fields from bulk YIG on the NiFe layer. It is found that the dynamic YIG dipolar fields modify the self-SRE of NiFe, driving its own Rectification voltages within the NiFe layer, an Effect we term as non-local SRE. This non-local SRE only occurs near the simultaneous resonance of both YIG and NiFe. On the other hand, the static dipolar field from YIG manifests itself as a negative anisotropy in the NiFe layer which shifts the latter’s ferromagnetic resonance frequency.

  • Influence of static and dynamic dipolar fields in bulk YIG/thin film NiFe systems probed via spin Rectification Effect
    Journal of Magnetism and Magnetic Materials, 2017
    Co-Authors: Wee Tee Soh, Bin Peng, Z.j. Tay, Nikolai Yakovlev, C. K. Ong
    Abstract:

    Abstract The characteristics of the static and dynamic components of the dipolar fields originating from a bulk polycrystalline yttrium iron garnet (YIG) substrate are probed by depositing a NiFe (Permalloy) layer on it, which acts as a detector. By measuring dc voltages generated via spin Rectification Effect (SRE) within the NiFe layer under microwave excitation, we characterize the influence of dipolar fields from bulk YIG on the NiFe layer. It is found that the dynamic YIG dipolar fields modify the self-SRE of NiFe, driving its own Rectification voltages within the NiFe layer, an Effect we term as non-local SRE. This non-local SRE only occurs near the simultaneous resonance of both YIG and NiFe. On the other hand, the static dipolar field from YIG manifests itself as a negative anisotropy in the NiFe layer which shifts the latter’s ferromagnetic resonance frequency.

  • separation of inverse spin hall Effect and spin Rectification Effect by inverting spin injection direction in nife ta bilayers film
    Solid State Communications, 2016
    Co-Authors: Qiuru Wang, Bin Peng, Wanli Zhang, Wenxu Zhang
    Abstract:

    Abstract The inverse spin Hall Effect (ISHE) has been detected and separated from spin Rectification Effect (SRE) by inverting spin injection direction in metallic system. This work is based on the relation between the two Effects and the spin injection direction: the sign of VISHE changes because of the reversing direction of spin injection while the VSRE is independent on it. According to the different voltage signals before and after the spin injection inverted, the pure VISHE and VSRE are calculated by utilizing the method of addition and subtraction. The signals can be separated in a wide range of frequency and power.

  • Methods to obtain the inverse spin hall Effect voltage in permalloy/normal metal bilayer
    2016 IEEE International Nanoelectronics Conference (INEC), 2016
    Co-Authors: Qiuru Wang, Bin Peng, Wanli Zhang, Ting Wu, Fangbin Han, Wenxu Zhang
    Abstract:

    In this work, the inverse spin Hall Effect was separated from the spin Rectification Effect by two methods. One is originated from that the inverse spin Hall Effect which is an odd function of the spin injection direction while the spin Rectification Effect is independent on it. The second method is based on the relation between the direction of static magnetic field and the symmetric and anti-symmetric components of voltage.

  • Separation of inverse spin hall Effect and spin Rectification Effect by inverting spin injection direction in NiFe/ta bilayers film
    Solid State Communications, 2016
    Co-Authors: Qiuru Wang, Bin Peng, Wanli Zhang, Wenxu Zhang
    Abstract:

    Abstract The inverse spin Hall Effect (ISHE) has been detected and separated from spin Rectification Effect (SRE) by inverting spin injection direction in metallic system. This work is based on the relation between the two Effects and the spin injection direction: the sign of VISHE changes because of the reversing direction of spin injection while the VSRE is independent on it. According to the different voltage signals before and after the spin injection inverted, the pure VISHE and VSRE are calculated by utilizing the method of addition and subtraction. The signals can be separated in a wide range of frequency and power.

N. Mecking - One of the best experts on this subject based on the ideXlab platform.

  • The rf magnetic-field vector detector based on the spin Rectification Effect
    Applied Physics Letters, 2008
    Co-Authors: Lihui Bai, Yongsheng Gui, A. Wirthmann, E. Recksiedler, N. Mecking, Z. H. Chen, S. C. Shen
    Abstract:

    Ferromagnetic resonances on three Permalloy strips under an in-plane external magnetic field are detected electrically. By measuring and analyzing the angular dependence of the photovoltage induced by the spin Rectification Effect, an approach is demonstrated for making microwave detectors capable of detecting the rf magnetic field vector at subwavelength scale.

  • realization of a room temperature spin dynamo the spin Rectification Effect
    Physical Review Letters, 2007
    Co-Authors: N. Mecking, X Zhou, G P Williams, C M Hu
    Abstract:

    : We demonstrate a room-temperature spin dynamo where the precession of electron spins in ferromagnets converts energy from microwaves to a bipolar current of electricity. The current/power ratio is at least 3 orders of magnitude larger than that found previously for spin-driven currents in semiconductors. The observed bipolar nature and intriguing symmetry are fully explained by the spin Rectification Effect via which the nonlinear combination of spin and charge dynamics creates dc currents.

  • realization of a room temperature spin dynamo the spin Rectification Effect
    arXiv: Materials Science, 2006
    Co-Authors: N. Mecking, X Zhou, G P Williams, C M Hu
    Abstract:

    We demonstrate a room temperature spin dynamo where the precession of electron spins in ferromagnets driven by microwaves manifests itself in a collective way by generating d.c. currents. The current/power ratio is at least three orders of magnitude larger than that found previously for spin-driven currents in semiconductors. The observed bipolar nature and intriguing symmetry are fully explained by the spin Rectification Effect via which the nonlinear combination of spin and charge dynamics creates d.c. currents.

C M Hu - One of the best experts on this subject based on the ideXlab platform.

  • realization of a room temperature spin dynamo the spin Rectification Effect
    Physical Review Letters, 2007
    Co-Authors: N. Mecking, X Zhou, G P Williams, C M Hu
    Abstract:

    : We demonstrate a room-temperature spin dynamo where the precession of electron spins in ferromagnets converts energy from microwaves to a bipolar current of electricity. The current/power ratio is at least 3 orders of magnitude larger than that found previously for spin-driven currents in semiconductors. The observed bipolar nature and intriguing symmetry are fully explained by the spin Rectification Effect via which the nonlinear combination of spin and charge dynamics creates dc currents.

  • realization of a room temperature spin dynamo the spin Rectification Effect
    arXiv: Materials Science, 2006
    Co-Authors: N. Mecking, X Zhou, G P Williams, C M Hu
    Abstract:

    We demonstrate a room temperature spin dynamo where the precession of electron spins in ferromagnets driven by microwaves manifests itself in a collective way by generating d.c. currents. The current/power ratio is at least three orders of magnitude larger than that found previously for spin-driven currents in semiconductors. The observed bipolar nature and intriguing symmetry are fully explained by the spin Rectification Effect via which the nonlinear combination of spin and charge dynamics creates d.c. currents.