Title :
Developments of multi-extreme THz ESR system and its application to cr-jarosite
Author :
Ohta, Hitoyoshi ; Okubo, Sho ; Sakurai, Takayasu ; Ohmichi, Eiji ; Weimin Zhang ; Shimokawa, Tokuro ; Nakata, Ryohei ; Okuta, Koji ; Hara, Satoshi ; Sato, Hikaru
Author_Institution :
Mol. Photoscience Res. Center, Kobe Univ., Kobe, Japan
Abstract :
Multi-extreme THz ESR measurements have been performed on Cr-jarosite, which is an ideal model substance of highly frustrated kagome antiferromagnet. The analysis of antiferromagnetic resonances observed at 1.9K revealed the Dzyaloshinsky-Moriya interaction, which plays an important role on the ground state.
Keywords :
antiferromagnetic materials; antiferromagnetic resonance; chromium compounds; frustration; ground states; iron compounds; paramagnetic resonance; potassium compounds; Cr-jarosite; CrKFe3(OH)6(SO4)2; Dzyaloshinsky-Moriya interaction; antiferromagnetic resonances; ground state; highly frustrated kagome antiferromagnet; multiextreme THz ESR system; temperature 1.9 K; Crystals; Educational institutions; Frequency measurement; Lattices; Magnetic fields; Millimeter wave measurements; Temperature dependence;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665463
