46 citations · 136 across the 11 of their papers we have counts for
11 papers
Ultrafast THz probing of nonlocal orbital current in transverse multilayer metallic heterostructures
Sandeep Kumar, Sunil Kumar
THz generation from femtosecond photoexcited spintronic heterostructures has recently become a versatile tool for investigating ultrafast spin-transport and transient charge-curren…
Probing of large interfacial contribution to spin orbit coupling in CoFeB/Ta heterostructure by ultrafast THz emission spectroscopy
Sandeep Kumar, Sunil Kumar
Ultrafast THz radiation generation from ferromagnetic/nonmagnetic bilayer heterostructure-based spintronic emitters generally exploits the conversion from spin- to charge-current w…
Optical Damage Threshold and THz Generation Efficiency of (Fe,CoFeB)/(Ta,Pt) Spintronic Emitters
Sandeep Kumar, Anand Nivedan, Arvind Singh +5
THz pulses are generated from femtosecond pulse-excited ferromagnetic/nonmagnetic spintronic heterostructures via inverse spin Hall effect. The contribution from ultrafast demagnet…
Sub-bandgap activated charges transfer in a graphene-MoS2-graphene heterostructure
Sunil Kumar, Arvind Singh, Anand Nivedan +7
Monolayers of transition metal dichalcogenides are semiconducting materials which offer many prospects in optoelectronics. A monolayer of molybdenum disulfide (MoS2) has a direct b…
THz pulses from optically excited Fe, Pt and Ta based Spintronic Heterostructures
Sandeep Kumar, Anand Nivedan, Arvind Singh +1
Spintronic heterostructures are considered to be the new generation THz sources for their capability in producing high power and broadband THz radiation. Here, we provide a brief r…
Enhancement in optically induced ultrafast THz response of MoSe2MoS2 heterobilayer
Sunil Kumar, Arvind Singh, Sandeep Kumar +7
THz conductivity of large area MoS2 and MoSe2 monolayers as well as their vertical heterostructure, MoSe2MoS2 is measured in the 0.3-5 THz frequency range. Compared to the monolaye…