title: Effect of charge ordering and disordering on terahertz radiation characteristics of magnetoresistive Pr0.7Ca0.3MnO3 thin films.
abstract: Terahertz (THz) radiation from voltage-biased photoswitching devices made on magnetoresistive manganite Pr0.7Ca0.3MnO3 have been investigated for thin films grown under different conditions. We find that the temperature dependence of THz radiation near the charge-ordering temperature strongly depends on the growth condition of Pr0.7Ca0.3MnO3, whereas THz radiation shows no such temperature dependence near the spin-ordering temperature.
authors.affiliation: Research Center for Superconductor Photonics, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan. n-kida@aist.go.jp
authors.forename: Noriaki
authors.initials: N
authors.lastname: Kida
authors.forename: Kouhei
authors.initials: K
authors.lastname: Takahashi
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Tonouchi