The international group of scientists under the leadership of the Laboratory of Lawrence Berkel (Berkeley Lab) has made a breakthrough in the study of quantum phenomena, which can have a significant impact on the development of quantum calculations and energy -efficient electronics. Scientists for the first time received atomic-perching images and demonstrated electrical control over the chiral interface condition, which ensures the creation of conductivity channels without resistance, allowing electrons to move in only one direction.
This discovery can radically change the approach to the development of energy -efficient electronics, since such channels eliminate the reverse dissipation of electrons, thereby preventing electrical resistance, which leads to energy losses. The work published in the journal Nature Physics has become part of Berkeley Lab wider studies aimed at promoting quantum calculations and development of quantum materials.
Using a scanning tunnel microscope based on UC Berkeley, the team of researchers was able to visualize the wave function of the chiral interface state and demonstrated how to control this state, moving it on the model by changing the voltage on the gate electrode. Moreover, the researchers have shown that it is possible to “write” the chiral interface state in the sample, wash it and even rewrite, changing the direction of the electron flow.
These discoveries can lead to the creation of custom -made electronic channels that will be used in energy -efficient microelectronics, low -energy magnetic memory devices and in quantum calculations based on the exotic properties of electrons in the quantum abnormal effect of the Hall (QAH).
As the first author of the study by Tsansyun Zhang, now postdoxterant in the UC Santa Barbara, this work opens up new opportunities for studying exotic physics in connected materials, including anions – a new type of quasigrapist, which can become the key to quantum calculations. “Our results provided information that was previously inaccessible. We have a long way, but this is a good first step,” said Zhang.