Coherent Raman spectroscopy for the detection of electron spin resonance. Daniel Wolverson Department of Physics University of Bath. Spintronics motivation. Magnetic semiconductors from well-known to highly controversial... CdMnTe (Mg) ZnMnSe (Be,S) GaMnAs (Al) GaMnN
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Department of Physics
University of Bath
dilute magnetic semiconductor (DMS)
M Oestreich et al, Appl. Phys. Letts 74 (1999) 1251 (Marburg / Hull)
R Fiederling et al, Nature 402 (1999) 787 (Wuerzburg)
D Ferrand et al., Sol. St. Commun. 119 (2001) 237 (Grenoble / Wuerzburg / Warsaw)
ScatteringOptical measurement of g factors
(sensitivity and resolution)
Magnetic field B0
magnetic field B1
RCP / LCP
f2 - f1
f1Why optical heterodyne detection?
S. J. Bingham, J. J. Davies and D. Wolverson, Phys. Rev. B 65 155301 (2002)
a: strained to substrate;
b: free-standing ZnSe;
c: ZnSe attached to silica.
T0 = 0.3K
Effective x is 0.0048CB and VB splittings, Cd0.995Mn0.005Te
EPSRC, DFG, INTAS
Dr. Stephen Bingham
Prof. J. John Davies
Dr. Gazi Aliev
Dr David Richards, KCL.
Prof. Jean Geurts and Prof. Laurens Molenkamp, Würzburg.
Dr. Richard Harley, Southampton.
A.F. Ioffe Institute
Polish Acad. Sci., Warsaw
U. WürzburgTeam and collaborators