Search Results - "Hellman, E.S."

Open access e-books by Hellman, E.S

“…As e-books emerge into the public consciousness, "open access" (a concept already familiar to scholarly publishers and academic libraries), will play an…”
Get full text

The no shelf required guide to E-book purchasing (Library technology reports, vol. 47, no. 8) by Polanka, Sue

“…The increasingly important role that e-books and e-readers are playing in libraries makes it essential for librarians to get a handle on the ins and outs of…”
Get full text

Epitaxial Ba sub 1 minus x K sub x BiO sub 3 films on MgO: Nucleation, cracking, and critical currents by Hellman, E.S., Hartford, E.H., Gyorgy, E.M.

“…A two-step growth technique is used to obtain (100) oriented Ba{sub 1{minus}{ital x}}K{sub {ital x}}BiO{sub 3} films with good superconducting properties by…”
Get full text

Heteroepitaxial Ba 1− xK xBiO 3/La 2− ySr yCuO 4 superconducting junctions by Hellman, E.S., Kwo, J.R., Kussmaul, A., Hartford, E.H.

“…The properties of junctions made by growing superconducting Ba 1− x K x BiO 3 (BKBO) epitaxially on superconducting La 1.85Sr 0.15CuO 4 (LSCO) epitaxial films…”
Get full text

Pauli-limited critical field of Ba/sub 1-x/K/sub x/BiO/sub 3/ determined from quasiparticle tunneling by Roesler, G., Tedrow, P.M., Hellman, E.S., Hartford, E.H.

“…A planar tunnel diode with Ba/sub 1-x/K/sub x/BiO/sub 3/ (BKBO) and Ag electrodes were fabricated. The dynamic conductance of the junction was similar to that…”
Get full text

All-high T sub c Josephson tunnel junction: Ba sub 1 minus x K sub x BiO sub 3 /Ba sub 1 minus x K sub x BiO sub 3 junctions by Pargellis, A.N., Sharifi, F., Dynes, R.C., Miller, B., Hellman, E.S., Rosamilia, J.M., Hartford, E.H. Jr

“…We have fabricated all-high {ital T}{sub {ital c}} superconducting tunnel junctions in the material Ba{sub 1{minus}{ital x}}K{sub {ital x}}BiO{sub 3}. The…”
Get full text

Heteroepitaxial Ba1-xKxBio3/La2-ySryCuO4 superconducting junctions by HELLMAN, E. S, KWO, J. R, KUSSMAUL, A, HARTFORD, E. H

Get full text

Molecular Beam Epitaxy of Superconducting (Rb,Ba)BiO sub 3 by Hellman, E S, Hartford, E H, Fleming, R M

“…The simple cubic perovskite (Rb,Ba)BiO sub 3 can be grown at temperatures < 350 deg C by molecular beam epitaxy using a rf plasma atomic oxygen source. Films…”
Get full text

Molecular beam epitaxy of layered Dy-Ba-Cu-O compounds by SCHLOM, D. G, ECKSTEIN, J. N, TURNER, F, HELLMAN, E. S, STREIFFER, S. K, HARRIS, J. S. JR, BEASLEY, M. R, BRAVMAN, J. C, GEBALLE, T. H, WEBB, C, VON DESSONNECK, K. E

“…Heteroepitaxial Dy-Ba-Cu-O films have been grown in situ on SrTiO3 substrates using an oxygen plasma beam and elemental source beams in a modified molecular…”
Get full text

Molecular beam epitaxy of dysprosium barium cuprous oxides using molecular oxygen by Hellman, E.S., Hartford, E.H., Fitzgerald, E.A.

“…Epitaxy of cupric oxides, such as the high temperature superconductor YBa2Cu3O7, using “vacuum” techniques requires either activated forms of oxygen, such as…”
Get full text

Quasiparticle-tunneling properties of Ba[sub 1[minus][ital x]]K[sub [ital x]]BiO[sub 3]/BaBi[sub 2]O[sub [ital y]]/Ba[sub 1[minus][ital x]]K[sub [ital x]]BiO[sub 3] sandwich junctions by Martin, S., Hellman, E.S., Kussmaul, A., Hartford, E.H. Jr

“…Quasiparticle-tunneling measurements on sandwich junctions patterned from molecular-beam-epitaxy-grown Ba[sub 1[minus][ital x]]K[sub [ital x]]BiO[sub…”
Get full text

Variable-range-hopping transport in Ba sub 1 minus x K sub x BiO sub 3 (0 lt x lt 0. 35) by Hellman, E.S., Miller, B., Rosamilia, J.M., Hartford, E.H., Baldwin, K.W.

“…Resistivity measurements on semiconducting single crystals and thin films of Ba{sub 1{minus}{ital x}}K{sub {ital x}}BiO{sub 3} ({ital x}{lt}0.35) grown by…”
Get full text

Umklapp electron-electron scattering resistivity of half-filled copper-oxygen chains and planes by Hellman, ES

Get full text

Effects of oxygen on the sublimation of alkaline earths from effusion cells by Hellman, E. S., Hartford, E. H.

“…The stability of the atomic flux from effusion cells is essential for the application of molecular‐beam epitaxy (MBE) to new materials systems. In particular,…”
Get full text

Adsorption controlled molecular beam epitaxy of rubidium barium bismuth oxide by Hellman, E. S., Hartford, E. H.

“…Measurements of the sticking coefficients for rubidium, barium, and bismuth have been made during molecular beam epitaxy of (Rb,Ba)BiO3 on MgO. This simple…”
Get full text

Circular dichroism observed in bismuthate superconductors by LYONS, K. B, DILLON, J. F, HELLMAN, E. S, HARTFORD, E. H, MCGLASHAN-POWELL, M

“…We report observation of circular dichroism (CD) in reflection from two bismuthate superconducting thin films, rubidium barium bismuthate. This signal is…”
Get full text

Mechanism of current modulation by optic phonons in heterojunction tunneling experiments by HANNA, C. B, HELLMAN, E. S, LAUGHLIN, R. B

Get full text

Epitaxial growth of high‐temperature superconducting thin films by Eckstein, J. N., Schlom, D. G., Hellman, E. S., von Dessonneck, K. E., Chen, Z. J., Webb, C., Turner, F., Harris, J. S., Beasley, M. R., Geballe, T. H.

“…We report the development of molecular‐beam epitaxy (MBE) techniques for the growth of high‐temperature, perovskite‐like superconductors. The use of a plasma…”
Get full text