Research output: Contribution to journal › Conference article › peer-review
Research output: Contribution to journal › Conference article › peer-review
}
TY - JOUR
T1 - Local electronic structure of doping atoms in Ma(2)Ca(n-1)Cu(n)o(2n+3)high-T-c superconductors with [M-12(n-1)n] type structures
AU - Kurmaev, E.
AU - Moewes, A.
AU - Zhigadlo, N. D.
AU - Takayama-Muromachi, E.
AU - Nekrasov, I.
AU - Bureev, O.
AU - Woods, G. T.
AU - Callcott, T. A.
AU - Yarmoshenko, Yu.
AU - Shamin, S.
AU - Ederer, D.
AU - Yanagihara, M.
N1 - The Russian State Program on Superconductivity, Russian Foundation, supported this work for Basic Research (Projects 00-15-96575) and the President’s NSERC fund of the University of Saskatchewan. The work at the Advanced Light Source at the Lawrence Berkeley National Laboratory was supported by the US Department of Energy (Contract No. DE-AC03-76SF00098). The Multi-Core Project, the COE Project, and the Special Coordination Fund of the Science and Technology Agency supported the work at the NIRIM.
PY - 2002
Y1 - 2002
N2 - Results of X-ray fluorescence measurements of MA(2)Ca(n-1)Cu(n)O(2n+3) Compounds with [M-12(n - 1)n] type structures, (C0.8N0.2Sr2CuO5.3, [Cu-0.25(C,N)(0.75)]Sr2CaCu2Oy, Cu0.5V0.5Sr2CaCu2O7.5, Cu0.5V0.5Sr2Ca2Cu3O9.4, Cu0.5V0.5Sr2(Ca3.6Sr0.4)Cu5O13.5 and Cu0.5V0.5Sr2(Ca4.7Sr0.3)Cu6O15.3), are presented. The experiments show that C-atoms form a distorted CO3 oxyacid group with a partial substitution of copper and nitrogen atoms in the M-sites. We conclude that the CO32- group in (C,N) Sr2Can-1CunOy and (Cu,C,N) Sr2Can-1CunOy is substituted by the NO2- which induces the creation of the hole carriers in these compounds. We have found that V-atoms in the given compounds form (VO4)(3-) tetrahedrons and have a pentavalent state.
AB - Results of X-ray fluorescence measurements of MA(2)Ca(n-1)Cu(n)O(2n+3) Compounds with [M-12(n - 1)n] type structures, (C0.8N0.2Sr2CuO5.3, [Cu-0.25(C,N)(0.75)]Sr2CaCu2Oy, Cu0.5V0.5Sr2CaCu2O7.5, Cu0.5V0.5Sr2Ca2Cu3O9.4, Cu0.5V0.5Sr2(Ca3.6Sr0.4)Cu5O13.5 and Cu0.5V0.5Sr2(Ca4.7Sr0.3)Cu6O15.3), are presented. The experiments show that C-atoms form a distorted CO3 oxyacid group with a partial substitution of copper and nitrogen atoms in the M-sites. We conclude that the CO32- group in (C,N) Sr2Can-1CunOy and (Cu,C,N) Sr2Can-1CunOy is substituted by the NO2- which induces the creation of the hole carriers in these compounds. We have found that V-atoms in the given compounds form (VO4)(3-) tetrahedrons and have a pentavalent state.
UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000178109900109
UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=18544365336
U2 - 10.1142/S0218625X02003780
DO - 10.1142/S0218625X02003780
M3 - Conference article
VL - 09
SP - 1345
EP - 1349
JO - Surface Review and Letters
JF - Surface Review and Letters
SN - 0218-625X
IS - 02
ER -
ID: 43719800