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Magneto-optical Kerr effect (MOKE)
Dr. Jan Fikáček
Magneto‑optical Kerr effect (MOKE): When linearly polarized light reflects from a magnetized surface, the plane of polarization rotates from its original direction. The information depth of the MOKE is 10-15 nm in metals.
The setup is moreover equipped with electrical wireing (8 connections) for transport measurements in a 4-point geometry. 2 additional shielded cables allow to couple high frequency signals, e.g. for surface acoustic waves or other applications.
Equipment:
Reservation contact:
Dr. Fikáček, fikacek
fzu [dot] cz
Magneto‑optical Kerr effect (MOKE): When linearly polarized light reflects from a magnetized surface, the plane of polarization rotates from its original direction. The information depth of the MOKE is 10-15 nm in metals.
The setup is moreover equipped with electrical wireing (8 connections) for transport measurements in a 4-point geometry. 2 additional shielded cables allow to couple high frequency signals, e.g. for surface acoustic waves or other applications.
Equipment:
- optical cryostat with temperature range 2.5-370 K
- Laser source: 670 nm wavelength, 1.85 eV, ~ 1mW
- detection diode
- in-plane fields (0.125 T maximum)
- out-of-plane fields (0.065 T maximum)
- lock-in amplifier (Stanford SR830) for transport
fzu [dot] czFZÚ v médiích
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