Title :
Submillimeter and millimeter wave ESR measurements of frustrated triangular lattice substance InMnO3
Author :
Matsumi, N. ; Okubo, S. ; Fujisawa, M. ; Sakurai, T. ; Ohta, H. ; Furukawa, K. ; Nakamura, T. ; Kikuchi, H.
Author_Institution :
Grad. Sch. of Sci., Kobe Univ., Kobe, Japan
Abstract :
Spin dynamics of S=2 triangular lattice antiferromagnet have been investigated by the submillimeter and the millimeter wave ESR measurements of polycrystalline samples of InMnO3. Single absorption line is observed in whole temperature range from 2.0 K to 265 K. The resonance field shifts due to the development of internal field are observed below 40 K. The spin dynamics of InMnO3 will be discussed in connection with other triangular lattice antiferromagnets.
Keywords :
antiferromagnetic materials; frustration; indium compounds; millimetre wave spectra; paramagnetic resonance; spin dynamics; submillimetre wave spectra; ESR measurement; InMnO3; geometrical spin frustration; millimeter wave measurement; paramagnetic resonance measurement; resonance field shift; spin dynamics; submillimeter wave measurement; temperature 2.0 K to 265 K; triangular lattice antiferromagnet; Antiferromagnetic materials; Frequency measurement; Lattices; Magnetic field measurement; Magnetic susceptibility; Millimeter wave measurements; Paramagnetic resonance; Performance evaluation; Powders; Temperature;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4244-5416-7
Electronic_ISBN :
978-1-4244-5417-4
DOI :
10.1109/ICIMW.2009.5325595
