Magneto-optical imaging for high-throughput characterization of combinatorial magnetic thin films

Abstract A new magneto-optical (MO) imaging system for high-throughput characterization of combinatorial magnetic thin films has been developed. The instrument allows us to measure both Faraday rotation and ellipticity maps at various wavelengths, and at different magnetic fields for wide variety of materials. We confirmed that the system possesses enough spatial resolution and sensitivity for detecting MO signals of individual pixels contained in a combinatorial library with a dimension of 7 mm ×9  mm.

[1]  L. Callegaro,et al.  A focused magneto-optical Kerr magnetometer for Barkhausen jump observations , 2000 .

[2]  M. Nawrocki,et al.  Excitonic magnetoabsorption in Cd1−xMnxTe mixed crystals , 1979 .

[3]  Samuel D. Bader,et al.  Surface magneto-optic Kerr effect , 2000 .

[4]  L. Helseth,et al.  Faraday rotation and sensitivity of (100) bismuth-substituted ferrite garnet films , 2002, cond-mat/0202281.

[5]  S. Wu,et al.  Improved circular polarizer for far‐infrared lightpipe systems , 1995 .

[6]  H. Shirai,et al.  First measurement of tangential Faraday rotation of CO2 laser wave in a tokamak plasma , 1999 .

[7]  H. Shirai,et al.  Dual CO2 laser polarimeter for Faraday rotation measurement in tokamak plasmas , 1999 .

[8]  J. Jeong,et al.  Three-configurational surface magneto-optical Kerr effect measurement system for an ultrahigh vacuum in situ study of ultrathin magnetic films , 2000 .

[9]  P. He,et al.  Magneto-optical Kerr effect and perpendicular magnetic anisotropy of evaporated and sputtered Co/Pt multilayer structures , 1991 .

[10]  W. Macek,et al.  Rotation Rate Sensing with Traveling-Wave Ring Lasers , 1963 .

[11]  Frank Tsui,et al.  Combinatorial molecular beam epitaxy synthesis and characterization of magnetic alloys , 2002 .

[12]  Yoshishige Suzuki,et al.  Magneto-optical spectra of Fe/Au artificial superlattices modulated by integer and noninteger atomic layers , 1999 .

[13]  P. Leiderer,et al.  Large area magneto-optical investigations of YBCO thin films , 1999 .

[14]  S. Schultz,et al.  A scanning near‐field optical microscope for the imaging of magnetic domains in reflection , 1996 .