Search Results for Dispersion

FIG. 1.10 Contour plot of the dispersion surface ɛ_k = −2t(cos k_xa + cos k_ya). The shapes shown here, for example, blue circle at the center (corresponding to low filling), green rhombus (half More about this image found in Contour plot of the dispersion surface ɛ_k = −2...

FIG. 3.23 The energy band dispersion with a Semenoff mass, m_I. A gap opens up at the Dirac points of magnitude 2m_I. More about this image found in The energy band dispersion with a Semenoff mass, m...

FIG. 3.25 The energy dispersion for a Semenoff insulator in a semi-infinite nanoribbon. A (trivial) gap is visible in the spectrum. More about this image found in The energy dispersion for a Semenoff insulator in a semi-infinite nanoribbo...

FIG. 3.29 The energy dispersion for a Chern insulator in a semi-infinite nanoribbon. The edge states are shown via the red lines that split from the bulk. In the yellow panel below, we show the chiral edge currents that flow in opposite directions along these edge modes. More about this image found in The energy dispersion for a Chern insulator in a semi-infinite nanoribbon. ...

FIG. 4.27 A schematic diagram of the dispersion E vs k corresponding to the Andreev reflection at the normal-superconductor (N-S) junction is shown. A cooper pair is created at the boundary, which can propagate at low bias inside a superconductor. The electron is specularly More about this image found in A schematic diagram of the dispersion E vs k...

FIG. 2.8 Zeta spectra for a fresh graphene—SDBS dispersion, an SDBS dispersion, and an aged (6 week old) graphene—SDBS dispersion. Inset: Zeta potential as a function of pH for SDBS—graphene dispersions. Reprinted with permission from Lotya et al., J. Am. Chem. Soc. 131 , 3611–3620 More about this image found in Zeta spectra for a fresh graphene—SDBS dispersion, an SDBS dispersion, and ...

spectroscopy (capacitance–frequency at different temperatures). The arrow indicates the presence of inflection point in the C–f plot associated with the deep trap emission that causes dispersion at higher frequencies ( Neal et al., 2017 ). More about this image found in Silicon dopant energy level detected from (a) temperature-dependent Hall co...