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narrow band gap semiconductors

Steady state and transient Brillouin gain in narrow band-gap magnetized semiconductors

Steady state and transient Brillouin gain in narrow band-gap magnetized semiconductors

... in III-V semiconductors. In the recent past, a significant amount of research work on SBS and its consequent instabilities in magnetized doped semiconductors have been reported by several groups [19-23]; ...

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Periodic DFT Study of Molecular Crystals

Periodic DFT Study of Molecular Crystals

... a narrow peak observed around -17 eV. An energy band which can be considered as the upper valence band (VB) is formed by a number of sub-bands, the widths of which range from ...conduction ...

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Band Gap Nonlinearity in Lead Chalcogenide (PbQ, Q = Te, Se, S) Alloys

Band Gap Nonlinearity in Lead Chalcogenide (PbQ, Q = Te, Se, S) Alloys

... other semiconductors due to their interesting electronic and transport properties, such as narrow band gaps, low resistivities, large carrier mobilities, and positive temperature coe ffi cients, ...

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DYNAMIC CHARACTERISTICS OF IMPATT DIODES BASED ON WIDE BANDGAP AND NARROW BANDGAP SEMICONDUCTORS AT W-BAND

DYNAMIC CHARACTERISTICS OF IMPATT DIODES BASED ON WIDE BANDGAP AND NARROW BANDGAP SEMICONDUCTORS AT W-BAND

... The DC and small signal properties of the Impatts, obtained from simulation, at the optimum bias current density are shown in Table-3. The bias current is optimized with respect to highest conversion efficiency and ...

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H-tailored surface conductivity in narrow band gap In(AsN)

H-tailored surface conductivity in narrow band gap In(AsN)

... In summary, we have shown that the n-type surface conductivity of In(AsN) is modified by the controlled incor- poration of H-atoms through the formation of donors within a well-defined subsurface region of the In(AsN) ...

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New Method of Determining the Landau Levels in Narrow Gap Semiconductors

New Method of Determining the Landau Levels in Narrow Gap Semiconductors

... the band gap is determined by the temperature dependence of the density of the energy state of the conduction band and valence band of the ...conduction band and valence band is ...

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Computational Studies of Compressed Diborane and Engineered Narrow-Gap Semiconductors

Computational Studies of Compressed Diborane and Engineered Narrow-Gap Semiconductors

... of band gap engineering with ZnO and ZnS has so far been explored computationally for bulk ZnO/ZnS heterostructures [26], multilayered structures and solid solutions of ZnO or ZnS with group-13 phosphides ...

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Progress in Antimonide Based III V Compound Semiconductors and Devices

Progress in Antimonide Based III V Compound Semiconductors and Devices

... Two-color or dual-band infrared detectors have the ability of inhibiting the complex background and im- proving the target detection efficiency and can signifi- cantly improve the system performances. ...

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OFDM CHANNEL ESTIMATION WITH NARROW BAND INTERFERENCE

OFDM CHANNEL ESTIMATION WITH NARROW BAND INTERFERENCE

... The I/p data is in the binary form. This binary information is given to the signal mapper, in this the given data is divided into adjacent blocks of length = 2 +1.Then the guard band N− zeros is inserted. After ...

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Mechanical filtering for narrow band hearing in the weta

Mechanical filtering for narrow band hearing in the weta

... Such narrow mechanical filtering is uncommon in Orthoptera. For example, the tympanic membranes of the tree cricket O. henryi display a flat, non-resonant mechanical response across a broad range of frequencies ...

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Narrow band photometry of Wolf-Rayet stars

Narrow band photometry of Wolf-Rayet stars

... As pointed out by Roberts (1 9 6 2 ), there appears to be a complete lack of WR stars in the directions between = l40° and 220°. From Figure IV.1 it is clear that there are comparatively few WR stars outside ...

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Narrow band anisotropic electronic structure of ReS2

Narrow band anisotropic electronic structure of ReS2

... of narrow valence bands, which we attribute to the combined influence of the structural distortion and spin-orbit ...valence band, where a more three-dimensional character is recovered with the fundamental ...

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Phase measurements and narrow spectral band inference

Phase measurements and narrow spectral band inference

... the narrow band of frequencies about A^ the phase is effec­ tively constanto If, over the narrow band, the second component were now to occur with lag £, relative to the first component then ...

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Electromagnetic Band Gap Structures Incorporate with Dual Band Microstrip Antenna Array

Electromagnetic Band Gap Structures Incorporate with Dual Band Microstrip Antenna Array

... having a gap of 0.5 mm between each other, were used to reject the 5.8 GHz band of frequency. These EBG structures were printed on the second layer (FR4 board) of a thickness of 1.6 mm and were shorted to ...

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Analysis of the spectrum transform for narrow band signal passing through nonlinear section of a digital radar receiver

Analysis of the spectrum transform for narrow band signal passing through nonlinear section of a digital radar receiver

... Figure 1 shows the normalized spectrum of the items from the first to fifth power of the baseband signal. It can be seen from the figure that the bandwidth of the signal increases by times of corresponding power order. ...

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Frequency Tunable Antenna for Digital Video Broadcasting Hand-Held Application

Frequency Tunable Antenna for Digital Video Broadcasting Hand-Held Application

... the narrow operating frequency band of the antenna derived from a monopole coupled loop antenna, a tuning system has been proposed to sweep the narrow band on a large frequency range in order ...

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Natural variability and anthropogenic effects in a Central Mediterranean core

Natural variability and anthropogenic effects in a Central Mediterranean core

... Abstract. We evaluate the contribution of natural variability to the modern decrease in foraminiferal δ 18 O by relying on a 2200-yr-long, high-resolution record of oxygen isotopic ratio from a Central Mediterranean ...

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First light of the VLT planet finder SPHERE. II. The physical properties and the architecture of the young systems PZ Telescopii and HD 1160 revisited

First light of the VLT planet finder SPHERE. II. The physical properties and the architecture of the young systems PZ Telescopii and HD 1160 revisited

... The J-band SINFONI spectrum and low-resolution LSS spectrum of PZ Tel B have an identical slope from 1.2 to 1.3 µm (Fig. 4). The LSS spectrum is, however, not a ff ected by strong telluric residuals shortward of ...

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A Novel Multi-Band Electromagnetic Band-Gap Structure

A Novel Multi-Band Electromagnetic Band-Gap Structure

... A novel multi-band electromagnetic band-gap (EBG) structure is presented. The transmission line method is used to simulate the transmission coefficients of the EBG structure. The effects of the width ...

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Computational Design of Flat Band Material

Computational Design of Flat Band Material

... conduction band has large energy dispersion. Magnetic properties arise when the band dispersion is ...the band dispersion is determined by the char- acter of atomic wave ...

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