| Deliver and maintain services, like tracking outages and protecting against spam, fraud, and abuse• "Quantum Hall effect in polar oxide heterostructures" | "Quantized Hall conductivity in two dimensions" |
|---|---|
| Deliver and measure the effectiveness of ads• Google uses and data to:• Improve the quality of our services and develop new ones• You can also visit g | Personalized content and ads can be based on those things and your activity like Google searches and videos you watch on YouTube |
"Quantized Hall conductivity in two dimensions".
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