Muon Spin Spectroscopy in Multiferroic (Cu,Zn)3Mo2O9

• DOI: 10.7566/jpscp.2.010206
• Publication Date: 2014-04-11T05:40:08Z
• Authors: Haruhiko Kuroe; Kento Aoki; Tasuku Sato; Ryo Kino; Hideki Kuwahara; Tomoyuki Sekine; Masashi Hase; Ikuto Kawasaki; Takayuki Kawamata; Takao Suzuki; Isao Watanabe; Kunihiko Oka; Toshimitsu Ito; Hiroshi Eisaki
• Keywords: Muon spin spectroscopy

We present the muon spin relaxation/rotation spectra in multiferroic compound (Cu,Zn) 3 Mo 2 O 9 .The parent material Cu has a phase below T N = 8.0 K, where canted antiferromagnetism and ferroelectricity coexist.The asymmetry time taken at RIKEN-RAL pulsed facility show drastic change .At low temperatures weakly beating oscillation caused by static internal magnetic fields antiferromagnetic was observed lightly (0.5%) Zn-doped sample.From fitting of oscillating term, we obtain order parameter these samples: ferromagnetic moment two sublattices antiferromagnet.In heavily (5.0%) sample, muon-spin is rapidly damped.The frequency-domain spectrum this sample suggests formation superstructure.