Regulating spin reversal in dipolar systems by the quadratic Zeeman effect

Article

关键词: MAGNETIZATION REVERSAL;    DYNAMICS;    BEHAVIOR;    PROGRESS;   

DOI  :  10.1103/PhysRevB.98.144438

来源: SCIE

【 摘 要 】

A mechanism is advanced suggesting the resolution of the dichotomy of long-lived spin polarization storage versus fast spin reversal at the required time. A system of atoms or molecules is considered interacting through magnetic dipolar forces. The constituents are assumed to possess internal structure allowing for the generation of the alternating-current quadratic Zeeman effect, whose characteristics can be efficiently regulated by quasiresonant dressing. The sample is connected to an electric circuit producing a feedback field acting on spins. By switching on and off the alternating-current quadratic Zeeman effect it is possible to realize spin reversals with a required delay time. The suggested technique of regulated spin reversal can be used in quantum information processing and spintronics.

【 授权许可】

Free