Sun Yang

Photoinduced Magnetization Change in Multiferroic YbFe2O4

We investigate the influence of laser illumination on the magnetization in multiferroic YbFe2O4 single crystals. A photoinduced magnetization change is confirmed in both ab plane and the c-axis directions. The temperature dependence of the photoinduced magnetization reduction excludes laser heating as the cause. In terms of the breakdown of charge order driven by laser illumination, the photoinduced magnetization change provides strong evidence for the spin-charge coupling in YbFe2O4. This photomagnetic effect based on charge-order-induced multiferroicity could be used for the non-thermal optical control of magnetization.We have studied the influence of laser illumination on the magnetization in multiferroic YbFe2O4 single crystals. A photoinduced magnetization change has been confirmed in both ab plane and c axis direction. The temperature dependence of the photoinduced magnetization reduction excludes laser heating as the cause. In terms of the breakdown of charge order driven by laser illumination, the photoinduced magnetization change provides a strong evidence for the spin-charge coupling in YbFe2O4. This photomagnetic effect based on charge-order-induced multiferroicity could be used for non-thermal optical control of magnetization.

Nuclear-Magnetic-Resonance Properties of the Staircase Kagomé Antiferromagnet PbCu3TeO7*

We report

階段状カゴメ反強磁性体PbCu_3TeO7の核磁気共鳴特性【Powered by NICT】

^{125}

Mixing arrangement for cell reactor

Te and

A fixed bed device for cell culture

^{63,65}

Liquid medium partial shipment device

Cu nuclear magnetic resonance (NMR) studies on single crystals of staircase Kagome antiferromagnet PbCu3TeO7 (

Feeding pipe sterilization apparatus that ally oneself with fermentation cylinder more

T_{N1}approx

Parallel multi-fermenting tank

36 K). A Curie constant as large as

Perforated plate pipettor

Theta

Expression vector applicable to corynebacterium glutamicum and application thereof

~140 K is obtained by a Curie-Weiss fitting of the high-temperature Knight shift. The frustration factor f (=