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Charge transfer and the relaxation dynamics of the metal-insulator transition in La/sub 0.7/A/sub 0.3/MnO/sub 3/ (A=Ca, Sr)
1999 Edition, January 1, 1999 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Summary form only given. The discovery of Colossal magneto resistance in doped manganese-oxide perovskites has lead to a resurgence of interest in this class of materials. Besides their technological value, they represent a model system to investigate the...

AC breakdown strength of N/sub 2/, SF/sub 6/ and a mixture of N/sub 2/+SF/sub 6/ containing a small amount of SF/sub 6/
1996 Edition, Volume 2, January 1, 1996 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

AC breakdown strengths of N/sub 2/, SF/sub 6/ and a mixture of N/sub 2/+SF/sub 6/ containing 1% of SF/sub 6/ were experimentally studied. For this purpose, 50 Hz AC breakdown voltages in both uniform and nonuniform fields up to a...

Magnetic and transport properties of single crystal TbB/sub 44/Si/sub 0.7/, a B/sub 12/ icosahedral cluster compound
2001 Edition, Volume 37, July 1, 2001 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Good quality single crystals of the new B/sub 12/ icosahedral cluster compound TbB/sub 44/Si/sub 0.7/ were successfully grown and magnetic and transport properties investigated. Magnetic measurements showed that this compound has an antiferromagnetic transition...

Implementation of a TE/sub 11/ K/sub a/ band gyro-TWT amplifier with distributed loss
2002 Edition, January 1, 2002 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Current amplifier research at the NRL Vacuum Electronics Branch emphasizes techniques to extend the bandwidth and average power capability of gyro-devices for millimeter wave radar applications. This paper discusses the implementation of a wideband, high average power...

Microinductor from high-T/sub c/ ceramic YBa/sub 2/Cu/sub 3/O/sub 6+X/ on a substrate from Al/sub 2/O/sub 3/
2001 Edition, January 1, 2001 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

In this work the experimental results obtained in a way of preparing process of new circuit-components based on high-Tc ceramic are represented. The method of transposition of a microcontour of inductance from ceramics YBa/sub 2/Cu/sub...

Magnetoresistance anisotropy and magnetization reversal processes in two different kinds of amorphous ferromagnets: a-Tb/sub 20/(Fe/sub 4/Co/sub 1/)/sub 80/ and a-U/sub 45/Sb/sub 45/Mn/sub 10/
1990 Edition, Volume 26, September 1, 1990 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

New amorphous U-Sb-Mn ferromagnets with magnetoresistance anisotropy reaching 9% at low temperature have been recently discovered. The magnetoresistance hysteresis cycles for these systems are compared with those obtained in amorphous Tb-Fe-Co films. Results are discussed in...

Brightness measurements of electron beam photoemitted multicrystalline I/sub a/B/sub 6/
1992 Edition, January 1, 1992 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Lanthanum hexaboride has been tested as a photoemitter when irradiated by a KrF eximer laser. Measured current, from 0.4cm/sup 2/ emitting area, was 10 A at irradiating wavelength of 248 nm; current density was about 25 A/cm/sup 2/. Beam normalized rms...

Systolic array implementation of H(z/sup -1/)=(a/sub 0/+a/sub 1/Z/sup -N/+a/sub 2/Z/sup -2N/)/(1+b/sub 1/Z/sup -N/ +b/sub 2/Z/sup -2N/) for N>or=2
1988 Edition, Volume 35, January 1, 1988 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

A novel systolic array for the implementation of a second-order IIR (infinite-impulse response) transfer function expressed in terms of Z/sup -N/ is presented. The array is suitable for any value of N greater than or equal to two. The major advantages of...

A/sub 2/MX/sub 4/ crystals as new materials for optoelectronics sensors
2005 Edition, Volume 2, January 1, 2005 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

In this paper, the possibilities and limitation (i.e. hygroscopic phenomenon) of using the A/sub 2/MX/sub 4/ crystals as optoelectronic sensors are discussed. The temperature dependences of transmittance coefficient were measured. Possibilities of...

Characteristic impedance of a microwave transmission line using a Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub x/ superconductor on a MgO substrate
1997 Edition, Volume 7, June 1, 1997 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Characteristic impedance of microstrip lines having a Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub x//MgO/Au structure is measured using a low-temperature vector network measuring system. A small test fixture for the superconducting microstrip...

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