Now that's small!

[Lyle]

the first single molecule transistor!
Lyle

http://www.liv.ac.uk/newsroom/press_releases/2005/06/molecular_electronic.htm

 

[Mike Monett]

Lyle wrote:

the first single molecule transistor!
Lyle

http://www.liv.ac.uk/newsroom/press_releases/2005/06/molecular_electronic.htm

Yes, but the real question is whether it is voltage or current controlled.

Mike Monett

 

[Kevin Aylward]

Mike Monett wrote:

Lyle wrote:

the first single molecule transistor!
Lyle

http://www.liv.ac.uk/newsroom/press_releases/2005/06/molecular_electronic.htm

Yes, but the real question is whether it is voltage or current
controlled.

Ahmmm....

That's trivial. Unless the device is magnetically, operated, its voltage
control. As I keep noting, F=q(E + vxB). If one wants to get charge
(collector) to *move* (change its motion) one must apply a force.

Indeed:

"Dr Hofer explains: "Our experiments demonstrate that we can control the
current through a single molecule by charging a single atom on a silicon
surface, while all surrounding atoms remain neutral" "

One could split hairs and argue that it is charge since, it is charge
that is producing the electric field. Ultimately, all electro-magnetic
effects are caused by charge.

Kevin Aylward
informationEXTRACT@anasoft.co.uk
http://www.anasoft.co.uk
SuperSpice, a very affordable Mixed-Mode
Windows Simulator with Schematic Capture,
Waveform Display, FFT's and Filter Design.

 

[Mike Monett]

Kevin Aylward wrote:

[...]

Yes, but the real question is whether it is voltage or current
controlled.

Ahmmm....

That's trivial. Unless the device is magnetically, operated, its voltage
control. As I keep noting, F=q(E + vxB). If one wants to get charge
(collector) to *move* (change its motion) one must apply a force.

Indeed:

"Dr Hofer explains: "Our experiments demonstrate that we can control the
current through a single molecule by charging a single atom on a silicon
surface, while all surrounding atoms remain neutral" "

One could split hairs and argue that it is charge since, it is charge
that is producing the electric field. Ultimately, all electro-magnetic
effects are caused by charge.

Kevin Aylward

Jes' trying to pull your chain, Kevin.

I have no problem with your explanation. Voltage causes charge movement.
Simple and intuitively obvious.

The only problem I see is, except for a few pathological cases,
everything electronic becomes voltage-controlled.

Diodes, transistors, FETs, MOSFETS, SCRs, Triacs, tubes, CRTs, relays,
VOMs, DVMs, and so on. Regardless of how they function, they all fit in
the same category.

So the term loses any meaning.

Mike Monett