Search Results - "FELDER, R. J"

Superconductivity in the quaternary intermetallic compounds LnNi2B2C by CAVA, R. J, TAKAGI, H, LEE, J. O, EISAKI, H, UCHIDA, S, ZANDBERGEN, H. W, KRAJEWSKI, J. J, PECK, W. F, SIEGRIST, T, BATLOGG, B, VAN DOVER, R. B, FELDER, R. J, MIZUHASHI, K

“…The attainment of unprecedentedly high transition temperatures in the copper oxide superconductors illustrates how working with more complex chemical systems…”
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Superconductivity at 23 K in yttrium palladium boride carbide by Cava, R. J, Takagi, H, Batlogg, B, Zandbergen, H. W, Krajewski, J. J, Peck, W. F, van Dover, R. B, Felder, R. J, Siegrist, T, Mizuhashi, K, Lee, J. O, Eisaki, H, Carter, S. A, Uchida, S

“…The observation of superconductivity at 23 degrees K in a multiple-phase bulk sample of a quaternary intermetallic, yttrium palladium boride carbide is…”
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Epitaxial growth and magnetic behavior of NiFe2O4 thin films by Venzke, S., van Dover, R. B., Phillips, Julia M., Gyorgy, E. M., Siegrist, T., Chen, C-H., Werder, D., Fleming, R. M., Felder, R. J., Coleman, E., Opila, R.

“…Thin films of NiFe2O4 were deposited on SrTiO3 (001) and Y0.15Zr0.85O2 (yttria-stabilized zirconia) (001) and (011) substrates by 90°-off-axis sputtering. Ion…”
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Sharp angular sensitivity of pinning due to twin boundaries in Ba2YCu3O7 by Gyorgy, E. M., van Dover, R. B., Schneemeyer, L. F., White, A. E., O’Bryan, H. M., Felder, R. J., Waszczak, J. V., Rhodes, W. W., Hellman, F.

“…We have measured the pinning force due to twin boundaries by measuring the magnetic torque produced when a field is applied perpendicular to the c axis and…”
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Cu valence and the formation of high Tc superconductor oxides studied by x-ray photoemission spectroscopy on 200 Å Bi-Sr-Ca-Cu oxide thin films by YEH, J.-J, DICENZO, S. B, HARTFORD, E. H, HONG, M, FELDER, R. J

“…The core level spectra of Bi-Sr-Ca-Cu oxide films of 200-A thickness (i.e., only 6-7 unit cells) were studied using XPS. Samples were annealed in oxygen at…”
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Increased pinning energies and critical current densities in heavy-ion-irradiated Bi2Sr2CaCu2O8 single crystals by CUTRO, J. A, RUDMAN, D. A, ORLANDO, T. P, VAN DOVER, R. B, SCHNEEMEYER, L. F, WHITE, A. E, GYORGY, E. M, WASZCZAK, J. V, FELDER, R. J

“…We report a significant increase in the pinning energy of vortices in single-crystal Bi2Sr2CaCu2O8 when irradiated with heavy ions such as Ar+. This is in…”
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Investigation of ternary transition-metal nitride systems by reactive cosputtering by Van Dover, R. B, Hessen, B, Werder, D, Chen, C. H, Felder, R. J

“…A reactive dc cosputtering technique has been used to evaluate compound formation in bimetallic transition-metal nitride systems. A wide range in M-M[prime]…”
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Y-Ba-Cu-O films by rf magnetron sputtering using single composite targets: superconducting and structural properties by LIOU, S. H, HONG, M, DAVIDSON, B. A, CHEN, H. S, NAKAHARA, S, BOONE, T, FELDER, R. J

“…High Tc superconducting Y-Ba-Cu-O films have been produced by rf magnetron sputtering using single unreacted composite targets of Y2O3, BaF2, and CuO powders…”
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Magnetoresistance of SmMn2Ge2 : a layered antiferromagnet by VAN DOVER, R. B, GYORGY, E. M, CAVA, R. J, KRAJEWSKI, J. J, FELDER, R. J, PECK, W. F

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In situ formation of YBa2Cu3Ox thin films by physical sputtering by YEH, J.-J, HONG, M, FELDER, R. J

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Critical currents in proton-irradiated single-crystal Ba2YCu3O7−δ by van Dover, R. B., Gyorgy, E. M., White, A. E., Schneemeyer, L. F., Felder, R. J., Waszczak, J. V.

“…Irradiation with 3.5 MeV protons creates defects in Ba2YCu3O7−δ, which can act as strong pinning sites, comparable to those produced by neutron irradiation…”
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Effect of d-band mixing in Mn-transition-metal spin glasses by HAUSER, J. J, WASZCZAK, J. V, FELDER, R. J, VINCENT, S. M

“…The recently reported magnetic properties of amorphous (a) Mn--Zr alloys exhibited two remarkable and unexpected results. First, while Ni, Co, and Fe display…”
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Frequency dependence of the susceptibility of amorphous MnSi by HAUSER, J. J, FELDER, R. J

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Direct observation of gold valence change as a function of oxygen stoichiometry in YBa2Cu3-yAuyO7-δ by EIBSCHÜTZ, M, LINES, M. E, REIFF, W. M, VAN DOVER, B, WASZCZAK, J. V, ZAHURAK, S, FELDER, R. J

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The Genesis Solar-Wind Collector Materials by Jurewicz, Ajg, Burnett, Ds, Wiens, Rc, Friedmann, Ta, Hays, Cc, Hohlfelder, Rj, Nishiizumi, K, Stone, Ja, Woolum, Ds, Becker, R, Butterworth, Al, Campbell, Aj, Ebihara, M, Franchi, Ia, Heber, V, Hohenberg, Cm, Humayun, M, Mckeegan, Kd, Mcnamara, K, Meshik, A, Pepin, Ro, Schlutter, D, Wieler, R

“…Genesis (NASA Discovery Mission #5) is a sample return mission. Collectors comprised of ultra-high purity materials will be exposed to the solar wind and then…”
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Superconductivity in RPt2B2C by Cava, RJ, Batlogg, B, Siegrist, T, Krajewski, JJ, Peck, Jr, WF, Carter, S, Felder, RJ, Takagi, H, van Dover RB

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EPITAXIAL GROWTH AND MAGNETIC BEHAVIOUR OF NiFe2O4 THIN FILM by Venzke, S, Van Dover, R B, Phillips, J M, Gyorgy, E M, Siegrist, T, C-H, Chen, Werder, D, Fleming, R M, Felder, R J, Coleman, E, Opila

“…Thin films of NiFe2O4 were deposited on SrTiO3 (001) and YSZ (001) and (011) substrates by 90 degree-off-axis sputtering. Ion channelling, RBS, XRD, and TEM…”
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Direct observation of gold valence change as a function of oxygen stoichiometry in YBa2Cu3− y Au y O7−δ by Eibschütz, M., Lines, M. E., Reiff, W. M., van Dover, B., Waszczak, J. V., Zahurak, S., Felder, R. J.

“…A study of the Au197 Mössbauer resonance is reported as a function of oxygen stoichiometry for gold-doped YBa2Cu3O7−δ. Three separate Mössbauer features are…”
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In Situ Formation of YBa sub 2 Cu sub 3 O sub x Thin Films by Physical Sputtering by Yeh, J-J, Hong, M, Felder, R J

“…It has been found that in situ superconducting Y--Ba--Cu--O thin films can be produced by sputtering without the aid of any external O sub 2 source during…”
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In situ formation of YBa2Cu3O(x) thin films by physical sputtering by Yeh, J-J, Hong, M, Felder, R J

“…Superconducting YBa2Cu3O(7-x) thin films (Tc = 80 K) were grown in situ without the aid of external O2 source during deposition. The films were produced by RF…”
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