Resistance hysteresis correlated with synchrotron radiation surface studies in atomic sp² layers of carbon synthesized on ferroelectric (001) lead zirconate titanate in an ultrahigh vacuum

Abstract

Graphene-like layers synthesized in ultrahigh vacuum, characterized by surface science techniques, exhibit resistance hysteresis depending on the carbon coverage.

Spectrum adapted expectation-conditional maximization algorithm for extending high–throughput peak separation method in XPS analysis

“…Such line shape function was introduced by Joyce et al [24], and it seems to be suitable for practical uses in the spectral data such as C 1s spectra e.g [25]. Here, the scale parameter, γ, specifies the half-width at halfmaximum (HWHM) of the distribution.…”

Electrostatic doping of graphene from a LiNbO3 (0001) substrate

“…In order to solve these problems, field-effect transistors based on graphene/ferroelectric have attracted much attention. Unlike traditional SiO 2 substrates, ferroelectric films with considerable dielectric constants can induce high levels of electrostatic doping by using a low gate voltage, and the tunable ferroelectric polarization can lead to different stable resistance states in graphene [17][18][19][20][21][22][23][24][25][26][27]. In 2009, Zheng et al [17] studied the graphene upon polyvinylidene fluoride trifluoroethylene (P(VDF-TrFE)) organic ferroelectric films, and found that controlling the ferroelectric polarization using a gate voltage would change the electrostatic doping level in graphene, thus a bistable state of high and low resistance was realized.…”