Back to Search
Start Over
Two types of all-optical magnetization switching mechanisms using femtosecond laser pulses.
- Source :
-
Physical Review B . Aug2016, Vol. 94 Issue 6, p1-1. 1p. - Publication Year :
- 2016
-
Abstract
- Using a time-dependent electrical investigation of the all-optical switching in ferrimagnetic and ferromagnetic Hall crosses via the anomalous Hall effect, intriguing insights into the rich physics underlying the all-optical switching are provided. We demonstrate that two different all-optical magnetization switching mechanisms can be distinguished; a "single pulse" switching for ferrimagnetic GdFeCo alloys, and a "two regimes" switching process for both ferrimagnetic TbCo alloys and ferromagnetic Pt/Co multilayers. We show that the latter takes place at two different time scales, and consists of a steplike helicity-independent multiple-domain formation within the first 1 ms followed by a helicity-dependent remagnetization on several tens of milliseconds. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 24699950
- Volume :
- 94
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Physical Review B
- Publication Type :
- Academic Journal
- Accession number :
- 119148198
- Full Text :
- https://doi.org/10.1103/PhysRevB.94.064412