- #1
JanSpintronics
- 32
- 2
Hello,
I've got some questions about a four-point measurement method. So first just consider we have a combination of 4 layers: on top an insulator like Slizium, than a heavy metal, that is conducting, than a ferromagnet that is also conducting and than another insulating sheet like glass or something:
1. How the hell can even, if you take your first 2 probes on top of the layer, a current go through the first Silizium layer? It is insulating...how is that possible?
2. If i have like here more than one sheet which is conducting, i can only say something about it if i know the other conducting properties of one layer from another experiement right?
3. Does somebody know where i can find a good describtion of the resistivity of more than one layer? With the correctionfactors and so on?
I've got some questions about a four-point measurement method. So first just consider we have a combination of 4 layers: on top an insulator like Slizium, than a heavy metal, that is conducting, than a ferromagnet that is also conducting and than another insulating sheet like glass or something:
1. How the hell can even, if you take your first 2 probes on top of the layer, a current go through the first Silizium layer? It is insulating...how is that possible?
2. If i have like here more than one sheet which is conducting, i can only say something about it if i know the other conducting properties of one layer from another experiement right?
3. Does somebody know where i can find a good describtion of the resistivity of more than one layer? With the correctionfactors and so on?