S. V. Sazonov, “Ultrasonic spin echo caused by irreversible phase relaxation”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2023, Volume 117, Issue 7,Pages <nobr>543

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CONDENSED MATTER

Ultrasonic spin echo caused by irreversible phase relaxation

S. V. Sazonov^ab

^a Moscow Aviation Institute (National Research University), Moscow, 125993 Russia
^b National Research Center Kurchatov Institute, Moscow, 123182 Russia

Abstract: The possibility of the generation of a primary ultrasonic echo in the system of equidistant Zeeman triplets owing to irreversible phase relaxation has been predicted. The disappearance of phase relaxation results in the disappearance of an echo signal. This effect is due to the destructive interference of two allowed quantum transitions emitting in antiphase. The difference between the phase relaxation times at these transitions leads to an incomplete quenching of resulting coherence, leading to generation of the echo signal.

Received: 13.02.2023
Revised: 01.03.2023
Accepted: 01.03.2023

DOI: 10.31857/S1234567823070108