Francesco Blanda

6 Questions 3 Answers 0 Followers

Questions related from Francesco Blanda

Could resistance increase with time only?

Is it possible that at fixed temperature and magnetic field the resistance increases with time in a semiconductor?

09 September 2018 9,289 3 View

What does it mean to have a negative magnetoresistance?

If I have a semiconductor that shows negative magnetoresistance at low temperature, what does it mean? It is an oxide.

09 September 2018 3,409 5 View

How is it possible that a sapphire substrate turned black after annealing?

After annealing at high temperature in vacuum for 12h the Al2O3 alpha phase substrate, it has turned into black and it is not transparent anymore. It is a black mirror. XRD peaks don't suggest...

09 September 2018 8,786 3 View

Is it possible that the resistance of a semiconductor increase changing the magnetic field, no matter what it is?

If you have a semiconductor with temperature and current thorugh it fixed, is it possible that the resisitivity changes with the magnetic field, both it decreases or increases?

08 August 2018 3,366 5 View

How do MEMS sensors mesure the temperature?

Micro-electro-mechanical Systems are used as trasducer. But what is the exactly way they mesure temperature?

05 May 2018 6,560 5 View

Is there any relation between between the KH instability and the dark current in semiconductor devices?

Since two layers of moving matter can experience the Kelvin Helmoltz instability due to different velocity of the one respect with the other at the interface, I was wondering about the existence...

04 April 2018 6,133 1 View