Fundamental Limits on the Repetition Rate of Photomagnetic Recording

被引：17

作者：

Szerenos, K. ^{[1
,2
]}

Kimel, A., V ^{[1
]}

Maziewski, A. ^{[2
]}

Kirilyuk, A. ^{[1
,3
]}

Stupakiewicz, A. ^{[2
]}

机构：

[1] Radboud Univ Nijmegen, Inst Mol & Mat, NL-6525 AJ Nijmegen, Netherlands

[2] Univ Bialystok, Fac Phys, PL-15245 Bialystok, Poland

[3] Radboud Univ Nijmegen, FELIX Lab, NL-6525 ED Nijmegen, Netherlands

来源：

PHYSICAL REVIEW APPLIED | 2019年 / 12卷 / 04期

关键词：

SUPERCONDUCTIVITY;

D O I：

10.1103/PhysRevApplied.12.044057

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The recently discovered phenomena of photomagnetic recording using femtosecond laser pulses in magnetic dielectrics opens up intriguing opportunities for ultrafast least-dissipative magnetic writing. Fundamental questions remain, however, about the processes, which limit the repetition rate of such writing. We report the magnetization dynamics and switching caused by a double-pulse excitation with various orientations of pump polarization. In particular, we study write and erase sequences, showing that mutual interference of the effects caused by two laser pulses can occur if the pulses are temporally separated by less than 60 ps. This imposes the fundamental limit for the repetition rate of writing (20 GHz), but this could be increased even further by strengthening the photoinduced magnetic anisotropy.

引用

页数：7

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