A DFT study on structure,energy gap and spectrum property of the conjugated polymer poly(2,5-furylene vinylene);

The determining method for energy gap and energy-band parameters of conducting polymers;

Study on specific heat and two energy gaps of MgB_2 samplesprepared by ambient pressure and high pressure;

PAS is a semiconductor material with quite small band gap and good pristine electric conductivity.

7, which showed different band gap values.

The results indicate that, with compressibility increasing , the width of band gap becomes wider,and that the interaction between Fe d electrons and S p electrons is stronger,and length of Fe-S bond becomes shorter.

A Precise CMOS Bandgap Voltage Reference;

A new low-voltage bandgap voltage reference was presented.

Based upon analysis of several type s of bandgap voltage reference circuit, we demonstrate a high precision circuit of bandgap voltage reference with relatively simple structure for high-speed se rial link.

The results show that the superconducting energy gap (2?(T)) is about 80 meV at Tc (93 K), and decreases smoothly as the temperature increasing.

The conclusion was that superconducting energy gap could not be obtained by measuring the emergence work of the metal.

Anomalies in transport properties due to the normal-state pseudogap in doped YBa_2(Cu_(1-x) M_x) 3O_(7-δ) (M =Co,Zn) thin films;

It reaches the minimum at Tc and exhibits pseudogap above Tc.

This article reviews insights on high-T_c superconductors from the nuclear magnetic resonance (NMR) technique, with emphasis on local hole density, d-wave superconducting gap and its consequences, and the nature of the pseudogap.