scholarly journals Room-temperature ultrafast carrier and spin dynamics in GaAs probed by the photoinduced magneto-optical Kerr effect

2001 ◽  
Vol 63 (23) ◽  
Author(s):  
A. V. Kimel ◽  
F. Bentivegna ◽  
V. N. Gridnev ◽  
V. V. Pavlov ◽  
R. V. Pisarev ◽  
...  
Keyword(s):  
Kerr Effect ◽  
Room Temperature ◽  
Spin Dynamics ◽  
Optical Kerr Effect ◽  
Ultrafast Carrier ◽  
Magneto Optical Kerr Effect

Ultrafast spin dynamics in InP probed by the photo-induced magneto-optical Kerr effect

2003 ◽  
Vol 0 (5) ◽  
pp. 1527-1531 ◽  
Author(s):  
A. V. Kimel ◽  
A. A. Tsvetkov ◽  
A. Kirilyuk ◽  
V. N. Gridnev ◽  
Th. Rasing
Keyword(s):  
Kerr Effect ◽  
Spin Dynamics ◽  
Optical Kerr Effect ◽  
Magneto Optical Kerr Effect

Large room-temperature magneto-optical Kerr effect in CuCr2Se4−xBrx (x = 0 and 0.3)

1991 ◽  
Vol 93 ◽  
pp. 207-210 ◽  
Author(s):  
H. Brändle ◽  
J. Schoenes ◽  
P. Wachter ◽  
F. Hulliger ◽  
W. Reim
Keyword(s):  
Kerr Effect ◽  
Room Temperature ◽  
Optical Kerr Effect ◽  
Magneto Optical Kerr Effect

Morphology and Curie Temperature Changes upon Annealing of Co/W(110)

1997 ◽  
Vol 475 ◽  
Author(s):  
A. Bauer ◽  
A. Mühlig ◽  
T. Günther ◽  
M. Farle ◽  
K. Baberschke ◽  
...  
Keyword(s):  
Curie Temperature ◽  
Ultrathin Films ◽  
Kerr Effect ◽  
Room Temperature ◽  
The Other ◽  
Scanning Tunneling ◽  
Optical Kerr Effect ◽  
Tunneling Microscopy ◽  
Temperature Changes ◽  
Magneto Optical Kerr Effect

ABSTRACTAnnealing of CoAV(110) ultrathin films causes rather strong changes of film morphology and magnetic properties, which has been studied by scanning tunneling microscopy (STM) and alternating-current magneto-optical Kerr effect (ac-MOKE). Annealing above 500 K of room-temperature grown 2 monolayers (ML) thick Co/W(110) films leads to the formation of islands and a decrease of the Curie temperature 7C. At 4 ML, on the other hand, a network of interconnected islands is formed upon annealing, resulting in an enhanced TC. While the increase of TC at 4 ML is explained by an increase of the local film thickness, the anomalous TC behavior at 2 ML is assigned to the occurrence of superparamagnetism.

Large room‐temperature magneto‐optical Kerr effect in CuCr2Se4

1990 ◽  
Vol 56 (26) ◽  
pp. 2602-2603 ◽  
Author(s):  
H. Brändle ◽  
J. Schoenes ◽  
P. Wachter ◽  
F. Hulliger ◽  
W. Reim
Keyword(s):  
Kerr Effect ◽  
Room Temperature ◽  
Optical Kerr Effect ◽  
Magneto Optical Kerr Effect

scholarly journals Asymmetric Hysteresis Loops in Co Thin Films

2020 ◽  
Vol 5 (4) ◽  
pp. 71
Author(s):  
Andrea Ehrmann ◽  
Tomasz Blachowicz
Keyword(s):  
Exchange Bias ◽  
Kerr Effect ◽  
Room Temperature ◽  
Magnetic Hysteresis ◽  
Hysteresis Loops ◽  
Blocking Temperature ◽  
Optical Kerr Effect ◽  
Thin Film System ◽  
Magnetic Hysteresis Loops ◽  
Magneto Optical Kerr Effect

Asymmetric magnetic hysteresis loops are usually found in exchange bias (EB) systems, typically after field cooling a system below the Néel temperature of an antiferromagnet exchange coupled to a ferromagnet. Alternatively, asymmetric hysteresis loops may occur due to undetected minor loops or in systems with a rotational anisotropy. Here, we report on an exchange bias thin film system MgO(100)/Co/CoO, examined at room temperature, which is far above the blocking temperature, by the magneto-optical Kerr effect (MOKE). While the longitudinal hysteresis loops partly show steps which are well-known from diverse purely ferromagnetic systems, the transverse hysteresis loops exhibit clear asymmetries, similar to exchange biased systems at low temperatures, and unusual transverse magnetization values at saturation. Since minor loops and a rotational anisotropy can be excluded in this case, this asymmetry can possibly be a residue of the exchange bias coupling at lower temperatures.

Sign in / Sign up

Export Citation Format

Share Document