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Trcka, M.; Reissner, M.; Varahram, H.; Steiner, W.
47. annual symposium of the Austrian Physical Society
47. annual symposium of the Austrian Physical Society
AbstractAbstract
No abstract available
Original Title
Untersuchung von Inter- und Intrakornpinning in YBCO-Keramiken
Primary Subject
Source
Kutschera, W. (ed.); Oesterreichische Physikalische Gesellschaft, Vienna (Austria); 304 p; 1997; p. 158; 47. annual symposium of the Austrian Physical Society; 47. Jahrestagung der Oesterreichischen Physikalischen Gesellschaft; Vienna (Austria); 22-26 Sep 1997
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Suenaga, Masaki
Brookhaven National Lab., Dept. of Applied Science, Upton, NY (United States). Funding organisation: USDOE Office of Energy Research, Washington, DC (United States)
Brookhaven National Lab., Dept. of Applied Science, Upton, NY (United States). Funding organisation: USDOE Office of Energy Research, Washington, DC (United States)
AbstractAbstract
[en] Microstructural defects are the primary determining factors for the values of critical-current densities in a high Tc superconductor after the electronic anisotropy along the a-b plane and the c-direction. A review is made to assess firstly what would be the maximum achievable critical-current density in YBa2Cu3O7 if nearly ideal pinning sites were introduced and secondly what types of pinning defects are currently introduced or exist in YBa2Cu3O7 and how effective are these in pinning vortices
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1998; 15 p; NATO Advanced Study Institute on physics and materials science of vortex state, flux, pinning, and dynamics; Kusadasi (Turkey); 26 Jul - 8 Aug 1998; CONF-980766--; CONTRACT AC02-98CH10886; ALSO AVAILABLE FROM OSTI AS DE99000587; NTIS; US GOVT. PRINTING OFFICE DEP
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Report
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Mitchell, J.F.; Argyriou, D.N.; Potter, C.D.; Jorgensen, J.D.; Hinks, D.G.; Bader, S.D.
Argonne National Lab., IL (United States). Funding organisation: USDOE Office of Energy Research, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
Argonne National Lab., IL (United States). Funding organisation: USDOE Office of Energy Research, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
AbstractAbstract
[en] Neutron powder diffraction studies of the layered compounds R1.2Sr1.8Mn2O7, (R = La, Pr, Nd), RSr2Mn2O7 (R = Pr, Nd), and La1.4Sr1.6Mn2O7 show that the degree of distortion of the MnO6 octahedra do not correlate with the appearance of a metal-insulator (MI) transition in these compounds. Instead, the in-plane Mn-O bond length appears to be a better indicator of the electronic behavior. Detailed bulk magnetization studies on single crystal La1.2Sr1.8Mn2O7 show that there are three magnetic regimes as a function of temperature: paramagnetic insulator, short-range ordered (SRO) ferromagnet, and long-range ordered (LRO) ferromagnet. Scaling analysis indicates that a 2D finite-size XY model is an appropriate description of the magnetic state in the SRO regime
Original Title
Colossal MagnetoResistance
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Secondary Subject
Source
1996; 9 p; 1996 Fall meeting of the Materials Research Society (MRS); Boston, MA (United States); 2-6 Dec 1996; CONF-961202--; CONTRACT W-31109-ENG-38; CONTRACT DMR 91-20000; ALSO AVAILABLE FROM OSTI AS DE97008662; NTIS; INIS; US GOVT. PRINTING OFFICE DEP
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Report
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Matsakova, A.A.
Natsional'nyj Nauchnyj Tsentr, Khar'kov (Ukraine). Khar'kovskij Fiziko-Tekhnicheskij Inst
Natsional'nyj Nauchnyj Tsentr, Khar'kov (Ukraine). Khar'kovskij Fiziko-Tekhnicheskij Inst
AbstractAbstract
[en] T-y phase diagrams, electrophysical properties, structures and superstructures of all phases (OI,OII,OIII,TI,TII, etc.) in the YBa2Cu3Oy system (5,8 ≤ y ≤ 7,7) are considered. The formation of the phases under study is mainly determined by the charge in oxygen concentration in the basal plane. The YBa2Cu3O7,0 compound is found to be optimum for the occurrence of metal conductivity and high-temperature superconductivity, because with a great oxygen deficiency in YBa2Cu3O6,0 there are no oxygen ions in the basal plane whereas with oxygen excess in YBa2Cu3O7,7 the quantity of oxygen vacancies in the basal plane is insufficient. 155 refs., 3 tab., 28 figs
Original Title
Ittrievaya keramika YBa2Cu3Oy (5,8 ≤ y ≤ 7,7): struktura, sverkhprovodimost', fazovaya diagramma
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1996; 49 p
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Oles, A.; Bombik, A.; Lesniewska, B.; Niziol, St.; Pytlik, L.; Sikora, W.; Zieba, A.
Annual Report on Scientific Activities in 1997 of Department of Physics and Nuclear Techniques, Academy of Mining and Metallurgy, Cracow
Annual Report on Scientific Activities in 1997 of Department of Physics and Nuclear Techniques, Academy of Mining and Metallurgy, Cracow
AbstractAbstract
No abstract available
Original Title
Badania struktury i wlasnosci fizycznych materii skondensowanej; rare earth compounds
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Wolny, J.; Olszynska, E. (eds.); Wydzial Fizyki i Techniki Jadrowej, Akademia Gorniczo-Hutnicza, Cracow (Poland); 143 p; 1998; p. 57-58; KBN GRANT NO. 224389203-A; 9 refs
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Osamura, K.; Miyata, S.; Suzuki, Junichi; Okayasu, S.
Progress report on neutron scattering research (April 1, 1997 - March 31, 1998)
Progress report on neutron scattering research (April 1, 1997 - March 31, 1998)
AbstractAbstract
No abstract available
Primary Subject
Source
Suzuki, Jun-ichi; Fujiwara, Satoru; Aizawa, Kazuya (eds.); Japan Atomic Energy Research Inst., Tokyo (Japan); 133 p; Feb 1999; p. 57
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Report
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AbstractAbstract
No abstract available
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Chmielewska, D.; Infeld, E.; Preibisz, Z.; Zupranski, P. (eds.); The Andrzej Soltan Institute for Nuclear Studies, Otwock-Swierk (Poland); 185 p; ISSN 1232-5309; 
; 1999; p. 27; 5 refs, 2 figs
; 1999; p. 27; 5 refs, 2 figs
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Miscellaneous
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Progress Report
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McQueeney, R.J.; Sarrao, J.L.
Los Alamos National Lab., NM (United States). Funding organisation: USDOE Office of Energy Research, Washington, DC (United States)
Los Alamos National Lab., NM (United States). Funding organisation: USDOE Office of Energy Research, Washington, DC (United States)
AbstractAbstract
[en] The inelastic neutron scattering spectra were measured for several Sr concentrations of polycrystalline La2-xSrxNiO4. The authors find that the generalized phonon density-of-states is identical for x = 0 and x = 1/8. For x = 1/3 and x = 1/2, the band of phonons corresponding to the in-plane oxygen vibrations (> 65 meV) splits into two subbands centered at 75 meV and 85 meV. The lower frequency band increases in amplitude for the x = 1/2 sample, indicating that it is directly related to the hole concentration. These changes are associated with the coupling of oxygen vibrations to doped holes which reside in the NiO2 planes and are a signature of strong electron-lattice coupling. Comparison of La1.9Sr0.1CuO4 and La1.875Sr0.125NiO4 demonstrates that much stronger electron-lattice coupling occurs for particular modes in the cuprate for modest doping and is likely related to the metallic nature of the cuprate
Primary Subject
Source
1999; 9 p; High temperature superconductivity conference; Miami, FL (United States); 7-13 Jan 1999; CONF-990116--; CONTRACT W-7405-ENG-36; ALSO AVAILABLE FROM OSTI AS DE99002183; NTIS; INIS; US GOVT. PRINTING OFFICE DEP
Record Type
Report
Literature Type
Conference; Numerical Data
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ALKALINE EARTH METAL COMPOUNDS, BARYONS, CHALCOGENIDES, DATA, ELEMENTARY PARTICLES, FERMIONS, HADRONS, INFORMATION, LANTHANUM COMPOUNDS, NICKEL COMPOUNDS, NUCLEONS, NUMERICAL DATA, OXIDES, OXYGEN COMPOUNDS, QUASI PARTICLES, RARE EARTH COMPOUNDS, SCATTERING, STRONTIUM COMPOUNDS, TRANSITION ELEMENT COMPOUNDS
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Nad', V.Yu.; Orlova, T.A.; Matveeva, L.A.; Grazhulene, S.S.; Petrukhin, O.M.
1. All-union conference on diagnostics problems of HTSC-materials
1. All-union conference on diagnostics problems of HTSC-materials
AbstractAbstract
[en] Short note
Original Title
Vozmozhnosti fazovoj diagnostiki ittrij-barievoj keramiki s ispol'zovaniem EhPR-spektrometra
Primary Subject
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Source
AN SSSR, Moscow (USSR). Nauchnyj Sovet po Probleme Analiticheskaya Khimiya; Gosudarstvennyj Nauchno-Issledovatel'skij i Proektnyj Inst. Redkometallicheskoj Promyshlennosti, Moscow (USSR); Moskovskij Gosudarstvennyj Univ., Moscow (USSR); 199 p; 1989; p. 75; 1. All-union conference on diagnostics problems of HTSC-materials; Chernogolovka (USSR); 24-26 Apr 1989
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Some results of the investigation of structure and properties of thick condensed Y-Ba-Cu-O-materials
Movchan, V.A.; Didikin, G.G.; Litvin, S.E.; Nikitochkin, Yu.V.; Grechanyuk, N.I.; Babarik, A.I.
1. All-union conference on diagnostics problems of HTSC-materials
1. All-union conference on diagnostics problems of HTSC-materials
AbstractAbstract
[en] Short note
Original Title
Nekotorye rezul'taty issledovanij struktury i svojstv tolstykh kondensirovannykh materialov Y-Ba-Cu-O
Primary Subject
Secondary Subject
Source
AN SSSR, Moscow (USSR). Nauchnyj Sovet po Probleme Analiticheskaya Khimiya; Gosudarstvennyj Nauchno-Issledovatel'skij i Proektnyj Inst. Redkometallicheskoj Promyshlennosti, Moscow (USSR); Moskovskij Gosudarstvennyj Univ., Moscow (USSR); 199 p; 1989; p. 101; 1. All-union conference on diagnostics problems of HTSC-materials; Chernogolovka (USSR); 24-26 Apr 1989
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