TY - JOUR
T1 - Magnetic structure and effect of magnetic field on its domain structure in magnetoelectric Ba1.3Sr0.7CoZnFe11AlO22
AU - Ueda, H.
AU - Tanaka, Y.
AU - Nakajima, H.
AU - Mori, S.
AU - Ohta, K.
AU - Haruki, K.
AU - Hirose, S.
AU - Wakabayashi, Y.
AU - Kimura, T.
N1 - Funding Information:
We thank Y. Hiraoka, M. Oura, and F. Ye for the fruitful discussions and support for the experiments. This work was supported by KAKENHI (Grants Nos. 24244058 and 25247054), MEXT, Japan, and by the ImPACT Program of Council for Science, Technology and Innovation (Cabinet Office, Government of Japan). The resonant X-ray diffraction experiments were performed at beamline 17SU in SPring-8 with an approval of RIKEN (Proposal Nos. 20140046 and 20150051).
Publisher Copyright:
© 2016 Author(s).
PY - 2016/10/31
Y1 - 2016/10/31
N2 - The magnetic structure and the effect of a magnetic field on its domain structure were investigated in a magnetoelectric Y-type hexaferrite, Ba1.3Sr0.7CoZnFe11AlO22, by means of mapping with a micro-focused and circularly polarized X-ray beam in the resonant X-ray diffraction. It was revealed that this hexaferrite exhibits a magnetic order characterized by two distinct antiferromagnetic components: incommensurate helical and commensurate collinear ones, which can be explained as the development of the so-called alternating longitudinal conical structure. A multi-domain state due to the handedness of the helical component, i.e., spin-chirality, is transformed into nearly a mono-domain one by using only a magnetic field. Furthermore, the sign of the spin-chirality in the mono-domain state is reversed by reversing the sign of a magnetic field. These results demonstrate that the spin-chirality in this hexaferrite can be manipulated by a magnetic field alone at room temperature.
AB - The magnetic structure and the effect of a magnetic field on its domain structure were investigated in a magnetoelectric Y-type hexaferrite, Ba1.3Sr0.7CoZnFe11AlO22, by means of mapping with a micro-focused and circularly polarized X-ray beam in the resonant X-ray diffraction. It was revealed that this hexaferrite exhibits a magnetic order characterized by two distinct antiferromagnetic components: incommensurate helical and commensurate collinear ones, which can be explained as the development of the so-called alternating longitudinal conical structure. A multi-domain state due to the handedness of the helical component, i.e., spin-chirality, is transformed into nearly a mono-domain one by using only a magnetic field. Furthermore, the sign of the spin-chirality in the mono-domain state is reversed by reversing the sign of a magnetic field. These results demonstrate that the spin-chirality in this hexaferrite can be manipulated by a magnetic field alone at room temperature.
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U2 - 10.1063/1.4966623
DO - 10.1063/1.4966623
M3 - Article
AN - SCOPUS:84994365212
SN - 0003-6951
VL - 109
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 18
M1 - 182902
ER -