326 citations · 963 across the 14 of their papers we have counts for
14 papers
Room Temperature Giant Charge-to-Spin Conversion at SrTiO3/LaAlO3 Oxide Interface
Yi Wang, Rajagopalan Ramaswamy, M. Motapothula +5
Two-dimensional electron gas (2DEG) formed at the interface between SrTiO3 (STO) and LaAlO3 (LAO) insulating layer is supposed to possess strong Rashba spin-orbit coupling. To date…
Interfacial Rashba magnetoresistance of two-dimensional electron gas at LaAlO/SrTiO interface
Kulothungasagaran Narayanapillai, Gyungchoon Go, Rajagopalan Ramaswamy +6
We report the angular dependence of magnetoresistance in two-dimensional electron gas at LaAlO/SrTiO interface. We find that this interfacial magnetoresistance exhibits a s…
Spin-orbit torque engineering via oxygen manipulation
Xuepeng Qiu, Kulothungasagaran Narayanapillai, Yang Wu +7
Spin transfer torques allow the electrical manipulation of the magnetization at room temperature, which is desirable in spintronic devices such as spin transfer torque memories. Wh…
Current-driven spin orbit field in LaAlO3/SrTiO3 heterostructures
Kulothungasagaran Narayanapillai, Kalon Gopinadhan, Xuepeng Qiu +4
We demonstrate a current tunable Rashba spin orbit interaction in LaAlO3/SrTiO3 (LAO/STO) quasi two dimensional electron gas (2DEG) system. Anisotropic magnetoresistance (AMR) meas…
Band structure of magnonic crystals with defects: Brillouin spectroscopy and micromagnetic simulations
Kai Di, Vanessa Li Zhang, Meng Hau Kuok +4
Using Brillouin spectroscopy, the first observation has been made of the band structures of nanostructured defect magnonic crystals. The samples are otherwise one-dimensional perio…
Control of domain wall motion at vertically etched nanotrench in ferromagnetic nanowires
Kulothungasagaran Narayanapillai, Hyunsoo Yang
We study field-induced domain wall motion in permalloy nanowires with vertically etched nanotrench pinning site. Micromagnetic simulations and electrical measurements are employed…
Thermally assisted domain wall nucleation in perpendicular anisotropy trilayer nanowires
Kulothungasagaran Narayanapillai, Xuepeng Qiu, Jan Rhensius +1
We study thermally assisted domain wall generation in perpendicular magnetic anisotropy CoFeB trilayer nanowires by the effect of Joule heating. The anomalous Hall effect is utiliz…
Angular and temperature dependence of current induced spin-orbit effective fields in Ta/CoFeB/MgO nanowires
Xuepeng Qiu, Praveen Deorani, Kulothungasagaran Narayanapillai +4
Current induced spin-orbit effective magnetic fields in metal/ferromagnet/oxide trilayers provide a new way to manipulate the magnetization, which is an alternative to the conventi…
Spin-orbit torques in Co/Pd multilayer nanowires
Mahdi Jamali, Kulothungasagaran Narayanapillai, Xuepeng Qiu +3
Current induced spin-orbit torques have been studied in ferromagnetic nanowires made of 20 nm thick Co/Pd multilayers with perpendicular magnetic anisotropy. Using Hall voltage and…
A new route to spin-orbit torque engineering via oxygen manipulation
Xuepeng Qiu, Kulothungasagaran Narayanapillai, Yang Wu +6
Spin transfer torques allow for electrical manipulation of magnetization at room temperature, which is utilized to build future electronic devices such as spin transfer torque memo…
Stochastic Nonlinear Electrical Characteristics of Graphene
Young Jun Shin, Kalon Gopinadhan, Kulothungasagaran Narayanapillai +3
A stochastic nonlinear electrical characteristic of graphene is reported. Abrupt current changes are observed from voltage sweeps between the source and drain with an on/off ratio…
Detection of domain wall eigenfrequency in infinity-shaped magnetic nanostructures
Mahdi Jamali, Kulothungasagaran Narayanapillai, Jae Hyun Kwon +1
The dynamics of a magnetic infinity-shaped nanostructure has been experimentally studied by two different techniques such as the sinusoidal resonance excitation and the damped shor…
Observation of magnetocapacitance in ferromagnetic nanowires
Kulothungasagaran Narayanapillai, Mahdi Jamali, Hyunsoo Yang
The authors have investigated magnetic domain wall induced capacitance variation as a tool for the detection of magnetic reversal in magnetic nanowires for in-plane (NiFe) and out-…
Electrical measurement of antivortex wall eigenfrequency
Mahdi Jamali, Jae Hyun Kwon, Kulothungasagaran Narayanapillai +1
The dynamics of a ferromagnetic antivortex wall has been experimentally studied in a magnetic nanostructure. Two different techniques have been used to independently measure the ei…