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Registration Number

0223U000490, 0122U001885 , R & D reports

Title

Magnetic dynamics of composite nanostructures with antiferromagnetic coupling

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Head

Holub Volodymyr O., Доктор фізико-математичних наук
Tovstolytkin Oleksandr І., Доктор фізико-математичних наук

Registration Date

09-01-2023

Organization

Institute of Magnetism NAS of Ukraine and MES of Ukraine

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  Model of a high-frequency spin-Hall nanooscillator based on a domain wall in an easy-axis antiferromagnet is proposed. It is shown that the spin current, polarized along the anisotropy axis, excites the conical precession of the Néel vector in such domain wall, which allows obtaining a reliable alternating current output signal, in contrast to the planar precession in a homogeneous uniaxial antiferromagnet, where alternating current generation is difficult to achieve. A new method of visualization of the direction of the Néel vector using spin moment microscopy with submicron spatial resolution is proposed. Using the developed method and ab-initio calculations, it has been shown that in Mn2Au there is a violation of the symmetry of antiferromagnetic pairing.

Product Description

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Ivanov Boris O.
Bondarenko Pavlo V.
Borynskiy Vladyslav Yu.
Verba Roman V.
Golud Volodymyr O
Davidenko YU. B.
Samorskiy Vadim O.
Koslov Oleksiy А.
Kosohor Anna О.
Kravets Anatoly Fedorovych
Lytvynenko Yaryna M.
Mamilov Serhii O.
Nakonechna Olesya Ivanivna
Nevdacha Vitaliy V.
Nefedova Galina M.
Polischuk Dmitriy M
Polinchuk Pavlo Yu.
Porev Sergiy M.
Reshetniak Serhii O
Ryabokony Olga L.
Salyuk Olga Yu.
Slobodianiuk Denys V.
Tovstolytkіn Olexandr I.
Trotschenkov Yuriy M
Harlan Yuliia I.
Sharai Irina Viktorоvna
Yaremkevich Dmеtro D