Commit 9760846c authored by Anton Akhmerov's avatar Anton Akhmerov
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typo fix

parent 9d2f8f49
......@@ -80,7 +80,7 @@ $$
\rho_{xy}=\frac{B}{ne}\equiv -R_{\rm H}B
$$
where $R_{\rm H}=-\frac{1}{ne}$ is the _Hall coefficient. So by measuring the Hall coefficient, we can obtain $n$, the density of free electrons in a material.
where $R_{\rm H}=-\frac{1}{ne}$ is the *Hall coefficient*. So by measuring the Hall coefficient, we can obtain $n$, the density of free electrons in a material.
While most materials have $R_{\rm H}<0$, interestingly some materials are found to have $R_{\rm H}>0$. This would imply that the charge of the carriers is positive. We will see later (chapter 17) how to interpret this.
## Conclusions
......
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