(adsbygoogle = window.adsbygoogle || []).push({}); please help me for a calculation! why my value different from that of literature????

delta E= {h^2*(3*n/pi)^(2/3) }/(8*m)

here: h Plank constant.

n the concentration of electron. n=4.46e20 cm^(-3)

m the effective mass of electron. m=0.35me (me is the static mass of electron)

I calculated for many times, but my calculated values (0.6eV) always large than that of reference, 0.201eV.

Any help would be greatly appreciated!

ps:This is not my homework, please, Administrator, let me post my question here. many thanks!

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Please help me for a calculation! why my value different from that of literature?

**Physics Forums | Science Articles, Homework Help, Discussion**