Zobrazeno 1 - 10 of 74 pro vyhledávání: '"J. O. Thomson"'
1
Magnetization study of polycrystalline YBa2AlxCu(3−x)O7−δ (x = 0.05, 0.10 and 0.20) compounds
Autor: James R Thompson, David K. Christen, H.R. Khan, J. O. Thomson, Yang Ren Sun, H. R. Kerchner
Publikováno v: Physica C: Superconductivity. 250:331-339
Superconductivity in polycrystalline YBa2AlxCu(3−x)O7−δ materials was characterized by dynamic AC and quasistatic DC magnetometry. Intragranular persistent current density and low-loss intergranular critical current density were deduced using DC
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3a8be760175ad128e144fa7f36d849cc
https://doi.org/10.1016/0921-4534(95)00300-2
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2
Influence of oxygen deficiency on the superconductive properties of grain-alignedYBa2Cu3O7−δ
Autor: David K. Christen, James R Thompson, J.E. Tkaczyk, Yang Ren Sun, H. R. Kerchner, Brian C. Sales, J. G. Ossandon, K. W. Lay, J. O. Thomson
Publikováno v: Physical Review B. 45:12534-12547
Magnetically aligned samples of sintered YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} were used to test the effects of oxygen-deficiency {delta} (with {delta}{le}0.2) on the superconductive magnetization {ital M}, critical current density {ital J}{sub {
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4dd9a957a7aa508839c98798342a1015
https://doi.org/10.1103/physrevb.45.12534
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3
Anisotropic Electrical Resistivity of YBCO/PBCO Superlattice Films Grown on Miscut Substrates
Autor: H. R. Kerchner, David K. Christen, D. H. Lowndes, C.E. Klabunde, J. O. Thomson, John D. Budai, David P. Norton
Publikováno v: MRS Proceedings. 275
Anisotropie electrical resistivity is studied in epitaxial superlattice films of YBa2Cu3O7-δ/PrBa2Cu3O7-ε grown in situ by laser ablation on SrTiO3 surfaces aligned slightly away from the [100] direction. Layer thicknesses of each compound range fr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3b2e7b83ed4687e8e79915d85036cbf0
https://doi.org/10.1557/proc-275-353
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5
Investigation of dilute magnetic impurities via the Mössbauer effect:AgFe57andAgCo57
Autor: J. R. Thompson, J. O. Thomson
Publikováno v: Physical Review B. 12:2572-2578
The dilute Kondo alloys Ag/sup 57/Fe and AG/sup 57/Co were studied via the Mossbauer effect at temperatures between 0.022 and 4.2/sup 0/K and in applied magnetic fields from 0 to 60 kG. For Fe in Ag, this allows study of both the thermal and magnetic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b85dc245ab5127c07e5429d191aa2131
https://doi.org/10.1103/physrevb.12.2572
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6
Very low-temperature search for superconductivity in semiconducting KTaO3
Autor: James R Thompson, L. A. Boatner, J. O. Thomson
Publikováno v: Journal of Low Temperature Physics. 47:467-475
A series of attempts have been made to detect the presence of superconductivity in semiconducting potassium tantalate (KTaO3) single crystals. Semiconducting potassium tantalate has a number of properties in common with semiconducting SrTiO3, which i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::056b3fb12b41095777484faccbfa4e58
https://doi.org/10.1007/bf00683987
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8
Use of the multiple‐scattering method for calculating the asymmetry parameter in the angle‐resolved photoelectron spectroscopy of N2, CO, CO2, COS, and CS2
Autor: J. O. Thomson, James W. Davenport, W. B. Dress, P. A. Agron, F. A. Grimm, Thomas A. Carlson
Publikováno v: The Journal of Chemical Physics. 72:3041-3048
Calculations based on the multiple‐scattering method have been performed for the asymmetry parameter (β) as a function of photon energy (from the ionization threshold to 2 Ry above threshold) for the gaseous molecules: N2, CO, CO2, COS, and CS2. F
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8c976b3b621d90797b8f38645c0a4f3c
https://doi.org/10.1063/1.439506
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9
Low-temperature excitations in spin glasses: evidence for a T3/2behaviour
Autor: J R Thompson, J O Thomson
Publikováno v: Journal of Physics F: Metal Physics. 11:247-260
Presents evidence that the dominant excitations in CuMn, AgMn and AuMn spin glasses at low temperature lead to a T3/2 behaviour in the low-temperature heat capacity and magnetisation, similar to that observed for the resistivity. This is contrary to
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::29824b362bcccf6f87711523d82b935a
https://doi.org/10.1088/0305-4608/11/1/025
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10
Anisotropic effects in dilute Pt-Mn: A nuclear orientation study
Autor: J R Thompson, T L Nichols, J O Thomson, S Nave, P G Huray
Publikováno v: Journal of Physics F: Metal Physics. 8:169-175
The paper studies the behaviour of the Mn spin for dilute Mn in Pt as a function of temperature and applied field using the technique of nuclear orientation. In the preferentially oriented cubic polycrystalline foil a preferential nuclear spin orderi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::901caed6789f5edd8b3e9356a53331fb
https://doi.org/10.1088/0305-4608/8/1/020
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