Peculiarities of magnetic moment switching in the φ0-junction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F21%3A00382604" target="_blank" >RIV/68407700:21340/21:00382604 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/22:73610573

Výsledek na webu

<a href="https://doi.org/10.1209/0295-5075/ac45bf" target="_blank" >https://doi.org/10.1209/0295-5075/ac45bf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1209/0295-5075/ac45bf" target="_blank" >10.1209/0295-5075/ac45bf</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Peculiarities of magnetic moment switching in the φ0-junction

Popis výsledku v původním jazyce

We have investigated the dynamics of magnetization under a current pulse in a phi(0)-junction with a direct coupling between the magnetic moment and the superconducting current. The correspondence between the magnetization value at the end of the pulse m(z)* and the realization of the magnetization reversal along the easy axis of the ferromagnetic is considered. The crucial influence of the ratio w of the ferromagnetic frequency to the characteristic frequency of the Josephson junction on the results of reversal predictions is demonstrated. The effect of the w magnitude on the manifestation of periodicity bands in the m(z)* dependence on the model parameters is shown. There is a critical value of the Gilbert damping, above which the magnetization reversal is not realized. It is shown that at small w the magnitude m(z)* can be considered as a criterion of magnetization reversal. I. e. , if m(z)* < 0, the magnetization reversal would happen with 100 percent probability. The results can be used in various areas of superconducting spintronics, in particular, to create a memory element based on the Josephson phi(0)-junction.

Název v anglickém jazyce

Peculiarities of magnetic moment switching in the φ0-junction

Popis výsledku anglicky

We have investigated the dynamics of magnetization under a current pulse in a phi(0)-junction with a direct coupling between the magnetic moment and the superconducting current. The correspondence between the magnetization value at the end of the pulse m(z)* and the realization of the magnetization reversal along the easy axis of the ferromagnetic is considered. The crucial influence of the ratio w of the ferromagnetic frequency to the characteristic frequency of the Josephson junction on the results of reversal predictions is demonstrated. The effect of the w magnitude on the manifestation of periodicity bands in the m(z)* dependence on the model parameters is shown. There is a critical value of the Gilbert damping, above which the magnetization reversal is not realized. It is shown that at small w the magnitude m(z)* can be considered as a criterion of magnetization reversal. I. e. , if m(z)* < 0, the magnetization reversal would happen with 100 percent probability. The results can be used in various areas of superconducting spintronics, in particular, to create a memory element based on the Josephson phi(0)-junction.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Europhysics Letters

ISSN

0295-5075

e-ISSN

1286-4854

Svazek periodika

136

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

6

Strana od-do

—

Kód UT WoS článku

000773437300001

EID výsledku v databázi Scopus

2-s2.0-85127553093