460 citations · 771 across the 12 of their papers we have counts for
7 papers · 1 filter
Proton and Li-Ion Permeation through Graphene with Eight-Atom-Ring Defects
Eoin Griffin, Lucas Mogg, Guang-Ping Hao +21
Defect-free graphene is impermeable to gases and liquids but highly permeable to thermal protons. Atomic-scale defects such as vacancies, grain boundaries and Stone-Wales defects a…
Electric-field-induced magnetization changes in Co/Al2O3 granular multilayers
Ajeesh M. Sahadevan, Alan Kalitsov, Gopinadhan Kalon +3
We study experimentally the effect of electric field on the magnetization of Co/Al2O3 granular multilayers. We observe two distinct regimes: (a) low-field regime when the net magne…
Biaxial strain effect of spin dependent tunneling in MgO magnetic tunnel junctions
Ajeesh M. Sahadevan, Ravi K. Tiwari, Gopinadhan Kalon +3
We study the effect of strain on magnetic tunnel junctions (MTJ) induced by a diamond like carbon (DLC) film. The junction resistance as well as the tunnel magnetoresistance (TMR)…
Disorder-free sputtering method on graphene
Xue Peng Qiu, Young Jun Shin, Jing Niu +5
Deposition of various materials onto graphene without causing any disorder is highly desirable for graphene applications. Especially, sputtering is a versatile technique to deposit…
The role of charge traps in inducing hysteresis: capacitance - voltage measurements on top gated bilayer graphene
Gopinadhan Kalon, Young Jun Shin, Viet Giang Truong +2
Understanding the origin of hysteresis in the channel resistance from top gated graphene transistors is important for transistor applications. Capacitance - voltage measurements ac…
Tunable metal-insulator transitions in bilayer graphene by thermal annealing
Gopinadhan Kalon, Young Jun Shin, Hyunsoo Yang
Tunable and highly reproducible metal-insulator transitions have been observed in bilayer graphene upon thermal annealing at 400 K under high vacuum conditions. Before annealing, t…