Origin of Magnetization in Silica-coated Fe3O4 Nanoparticles Revealed by Soft X-ray Magnetic Circular Dichroism

Investigation of the photoinduced magnetization of copper octacyanomolybdates nanoparticles by X-ray magnetic circular dichroism.

Through an extensive set of SQUID magnetic measurements, X-ray absorption spectroscopy, and X-ray magnetic circular dichroism, we have determined the nature of the metastable photomagnetic phase in the cyano-bridged 3D network Cs(2)Cu(7)[Mo(CN)(8)](4). The photomagnetic effect is induced by the photoconversion of Mo(IV) ions in low spin (LS) configuration (S = 0) into Mo(IV) ions in high spin (...

Induced perpendicular magnetization in a Cu layer inserted between Co and Pt layers revealed by x-ray magnetic circular dichroism

We used x-ray absorption spectroscopy and x-ray magnetic circular dichroism to investigate the effects of inserting Cu into Co/Pt interfaces, and found that a 0.4-nm-thick inserted Cu layer showed perpendicularly magnetized properties induced by the proximity effect through the Co and Pt layers. The dependence of the magnetic properties on the thickness of the Cu layers showed that the proximit...

Direct evidence of ferromagnetism without net magnetization observed by x-ray magnetic circular dichroism

S. Qiao,1,* A. Kimura,2,† H. Adachi,3 K. Iori,2 K. Miyamoto,2 T. Xie,2 H. Namatame,1 M. Taniguchi,1,2 A. Tanaka,4 T. Muro,5 S. Imada,6 and S. Suga6 1Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan 2Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan 3Institute of Materials Structure Science, KE...

High Magnetic Field X-ray Magnetic Circular Dichroism- a New Microscopic Magnetization Probe for Any Magnet

27 IMR KINKEN Research Highlights 2009 Innovative Electronic Materials A novel tool to evaluate a site and element selective magnetic moment has been developed by combining synchrotron radiation and high magnetic fields. X-ray magnetic circular dichrosim: XMCD is a key method for spintronics materials, however, had been limited in ferromagnets. The present technique breaks this limitation and r...

Orbital and spin moments of 5 to 11nm Fe3O4 nanoparticles measured via x-ray magnetic circular dichroism