(IMAGE)

Tohoku University

Caption

Fig. 1) Spatial distribution of electron spins in a specially designed semiconductor quantum well.

The spatial distribution of electron spins in a semiconductor quantum well are measured by the magneto-optic Kerr effect. As shown in the figure, electron spins were transported directly over 100μm in a quantum well with in-plane electric field. In addition, in this quantum well, we found that electron spins propagate with (without) spin precession in the x(y) direction, reflecting the crystal orientation dependence of effective magnetic field.

Credit

Y. Kunihashi (NTT Basic Research labs)

Usage Restrictions

Credit: Y. Kunihashi (NTT Basic Research labs)

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.