Match!
Shojan P. Pavunny
United States Naval Research Laboratory
14Publications
3H-index
40Citations
Publications 15
Newest
#1Abdel El Fatimy (Georgetown University)H-Index: 3
#2Peize Han (Georgetown University)H-Index: 1
Last.Paola Barbara (Georgetown University)H-Index: 19
view all 12 authors...
Abstract At high phonon temperature, defect-mediated electron-phonon collisions (supercollisions) in graphene allow for larger energy transfer and faster cooling of hot electrons than the normal, momentum-conserving electron-phonon collisions. Disorder also affects the heat flow between electrons and phonons at very low phonon temperature, where the phonon wavelength exceeds the mean free path. In both cases, the cooling rate is predicted to exhibit a characteristic cubic power law dependence on...
Source
#1Shojan P. Pavunny (NRL: United States Naval Research Laboratory)H-Index: 3
#2R. L. Myers-Ward (NRL: United States Naval Research Laboratory)H-Index: 28
Last.D. Kurt Gaskill (NRL: United States Naval Research Laboratory)H-Index: 21
view all 11 authors...
Abstract A comprehensive photogenerated carrier assisted etching investigation is carried out on the Si polar surface of high-quality p- and n-type (0001) 4H–SiC epilayers. The epilayers have intentional or unintentional doping densities in the 1014–1018 cm−3 range. Cyclic voltammetry and chronoamperometry studies under a non-focused above bandgap (280–400 nm) light illumination (≤0.66 Wcm−2) in a highly basic etching medium (1 wt% KOH solution, pH ∼12) complemented by Mott-Schottky characteriza...
Source
#1Abdel El FatimyH-Index: 3
#2Peize HanH-Index: 1
Last.Paola BarbaraH-Index: 19
view all 12 authors...
At high phonon temperature, defect-mediated electron-phonon collisions (supercollisions) in graphene allow for larger energy transfer and faster cooling of hot electrons than the normal, momentum-conserving electron-phonon collisions. Disorder also affects the heat flow between electrons and phonons at very low phonon temperature, where the phonon wavelength exceeds the mean free path. In both cases, the cooling rate is predicted to exhibit a characteristic cubic power law dependence on the elec...
#1Matthew T. Dejarld (NRL: United States Naval Research Laboratory)H-Index: 1
#2Paul M. Campbell (NRL: United States Naval Research Laboratory)H-Index: 36
Last.D. K. Gaskill (NRL: United States Naval Research Laboratory)H-Index: 35
view all 10 authors...
Metal films deposited on graphene are known to influence its electronic properties, but little is known about graphene’s interactions with very low work function rare earth metals. Here we report on the work functions of a wide range of metals deposited on n-type epitaxial graphene (EG) as measured by Kelvin Probe Force Microscopy (KPFM). We compare the behaviors of rare earth metals (Pr, Eu, Er, Yb, and Y) with commonly used noble metals (Cr, Cu, Rh, Ni, Au, and Pt). The rare earth films oxidiz...
1 CitationsSource
#1R. L. Myers-Ward (NRL: United States Naval Research Laboratory)H-Index: 28
#2Karl D. Hobart (NRL: United States Naval Research Laboratory)H-Index: 28
Last.D. Kurt Gaskill (NRL: United States Naval Research Laboratory)H-Index: 21
view all 14 authors...
2 CitationsSource
#1Rohit Medwal (NTU: Nanyang Technological University)H-Index: 7
#2S. Gupta (NTU: Nanyang Technological University)H-Index: 12
Last.Ram S. Katiyar (UPR: University of Puerto Rico)H-Index: 60
view all 6 authors...
In recent years, ferroelectric random access memory has drawn considerable attention as promising replacement to both dynamic random access memory and flash memory. Specifically in metal–ferroelectric–insulator–semiconductor (MFIS)-based structures, bi-stable polarization of ferroelectric gate even in absence of power holds the resistance state of semiconductor-drain channel between two logic states and offers additional features of non-destructive readout and non-volatile storage capability. Ho...
2 CitationsSource
#1Shojan P. Pavunny (NRL: United States Naval Research Laboratory)H-Index: 3
#2Hunter Banks (NRL: United States Naval Research Laboratory)
Last.Kurt Gaskill (NRL: United States Naval Research Laboratory)H-Index: 2
view all 9 authors...
#1Alvaro A. InstanH-Index: 2
#2Shojan P. PavunnyH-Index: 3
Last.R. S. KatiyarH-Index: 24
view all 4 authors...
5 Citations
#1Rajesh Kumar MalikH-Index: 2
#2Rajesh KhannaH-Index: 13
Last.Ram S. KatiyarH-Index: 60
view all 5 authors...
1 CitationsSource
12