Nanosecond-resolved XMCD on ID24 at the ESRF to investigate the element-selective dynamics of magnetization switching of Gd-Co amorphous thin film.
The one-bunch filling mode of the ESRF is combined with a microcoil to generate a pulsed-magnetic-field pump phased with respect to the probe that is given by the bunch of photons emitted each turn (357 kHz). Nanosecond-resolved X-ray magnetic circular dichroism (XMCD) is carried out. Besides the microcoil, the two other key-elements are the energy-dispersive XAS spectrometer, which yields parallel data acquisition, and the diamond-based quarter-wave plate, which tunes the helicity of the photon alternatively left and right.
Bonfim
M
M
LLN, CNRS, BP 166, 38042 Grenoble CEDEX, France.
Mackay
K
K
Pizzini
S
S
San Miguel
A
A
Tolentino
H
H
Giles
C
C
Neisius
T
T
Hagelstein
M
M
Baudelet
F
F
Malgrange
C
C
Fontaine
A
A