Electromagnon in the Y-type hexaferrite BaSrCoZnFel1Al022

We studied single crystals of BaSrCoZnFellAI022, a multiferroic with the Y - hexaferrite crystal structure. A purely electric-dipole-active electromagnon near ca. 1.2 THz was observed in time-domain terahertz and Raman spectra. The electromagnon is sensitive to applied magnetic field, and its activi...

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Bibliographic Details
Published in:	2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) pp. 1 - 2
Main Authors:	Kadlec, Filio, Vit, Jakub, Kadlec, Christelle, Borodavka, Fedir, Chai, Yi Sheng, Zhai, Kun, Surr, Young, Kamba, Stanislav
Format:	Conference Proceeding
Language:	English
Published:	IEEE 01-09-2018
Subjects:	Crystals Magnetic hysteresis Magnetic resonance Magnetic resonance imaging Magnetoelectric effects Magnetomechanical effects Temperature measurement
Online Access:	Get full text
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Summary:	We studied single crystals of BaSrCoZnFellAI022, a multiferroic with the Y - hexaferrite crystal structure. A purely electric-dipole-active electromagnon near ca. 1.2 THz was observed in time-domain terahertz and Raman spectra. The electromagnon is sensitive to applied magnetic field, and its activity can be correlated with the existence of various magnetic phases. Selection rules show that the electromagnon involves spins vibrating along the hexagonal axis c and that it is activated by exchange striction.
ISSN:	2162-2035
DOI:	10.1109/IRMMW-THz.2018.8509962