RT Journal Article
T1 Direct correlation between T_(c) and CuO_(2) bilayer spacing in YBa_(2)Cu_(3)O_(7-x)
A1 Varela del Arco, María
A1 Arias Serna, Diego
A1 Sefrioui, Zouhair
A1 León Yebra, Carlos
A1 Ballesteros, C.
A1 Pennycook, S. J.
A1 Santamaría Sánchez-Barriga, Jacobo
AB We report the effects of epitaxial strain and deoxygenation on high quality [YBa_(2)Cu_(3)O_(7-x)(YBCO)_(N) /PrBa_(2)Cu_(3)O_(7)(PBCO)_(5)]_(1000 Å) superlattices, with 1 < N < 12 unit cells. High-spatialresolution electron energy loss spectroscopy shows that strained, fully oxygenated YBCO layers are underdoped. Irrespective of whether underdoping is induced by strain or deoxygenation, x-ray diffraction analysis shows that T_(c) correlates directly with separation of the CuO_(2) bilayers.
PB American Physical Society
SN 1098-0121
YR 2002
FD 2002-10-01
LK https://hdl.handle.net/20.500.14352/59617
UL https://hdl.handle.net/20.500.14352/59617
LA eng
NO 1) A.A.R. Fernandes, J. Santamaría, S.L. Bud’ko, O. Nakamura, J. Guimpel, I. K. Schuller, Phys. Rev. B, 44, 7601 (1991).2) J.P. Attfield, A.L. Kharlanov, J.A. McAllister, Nature (London), 394, 157 (1998).3) W.E. Pickett, Phys. Rev. Lett., 78, 1960 (1997).4) S. Chakravarty, A. Sudbø, P.W. Anderson, S. Strong, Science, 261, 337 (1993).5) S. Chakravarty, A. Sudbø, P.W. Anderson, S. Strong, Phys. Rev. B, 49, 12, 245 (1994).6) S. Chakravarty, P.W. Anderson, Phys. Rev. Lett., 72, 3859 (1994).7) P.W. Anderson, Science, 279, 1196 (1998).8) A.J. Legget, Science, 274, 587 (1996).9) J.L. Tallon, G.V.M. Williams, C. Bernhard, D.M. Pooke, M.P. Staines, J.D. Johnson, R.H. Meinhold, Phys. Rev. B, 53, R11, 972 (1996).10) Xiaojia Chen, Chande Gong, Phys. Rev. B, 59, 4513 (1999).11) O. Chmaissem, J.D. Jorgensen, S. Short, A. Knizhnik, Y. Eckstein, H. Shaked, Nature (London), 397, 45 (1999).12) K.A. Lokshin, D.A. Pavlov, S.N. Putilin, E.V. Antipov, D.V. Sheptyakov, A.M. Balagurov, Phys. Rev. B, 63, 064511 (2001).13) X.D. Xiang, W.A. Vareka, A. Zettl, J.L. Corkill, M.L. Cohen, N. Kijima, R. Gronsky, Phys. Rev. Lett., 68, 530 (1992).14) J.-H. Choy, S.-J. Kwon, G.-S. Park, Science, 280, 1589 (1998).15) X.J. Chen, C.D. Gong, Y.B. Yu, Phys. Rev. B, 61, 3691 (2000).16) J.G. Lin, C.Y. Huang, Y.Y. Xue, C.W. Chu, X.W. Cao, J.C. Ho, Phys. Rev. B, 51, R12, 900 (1995).17) J.D. Jorgensen, S. Pei, P. Lightfoot, D.G. Hinks, B.W. Hinks, B.W. Veal, B. Dabrowski, A.P. Paulikas, R. Kleb, Physica C, 171, 93 (1990).18) C.C. Almasan, S.H. Han, B.W. Lee, L.M. Paulius, M.B. Maple, B.W. Veal, J.W. Donwey, A.P. Paulikas, Z. Fisk, J.E. Schirber, Phys. Rev. Lett., 69, 680 (1992).19) M. Varela, Z. Sefrioui, D. Arias, M.A. Navacerrada, M.A. López de la Torre, M. Lucía, C. León, G.D. Loos, F. Sánchez-Quesada, J. Santamaría, Phys. Rev. Lett., 83, 3936 (1999).20) M. Varela, D. Arias, Z. Sefrioui, C. León, C. Ballesteros, J. Santamaría, Phys. Rev. B, 62, 12, 509 (2000).21) E.E. Fullerton, I.K. Schuller, H. Vanderstraeten, Y. Bruynseraede, Phys. Rev. B, 45, 9292 (1992).22) E.E. Fullerton, J. Guimpel, O. Nakamura, I.K. Schuller, Phys. Rev. Lett., 69, 2589 (1992).23) M. Varela, W. Grogger, D. Arias, Z. Sefrioui, C. León, C. Ballesteros, K.M. Krishnan, J. Santamaría, Phys. Rev. Lett., 86, 5156 (2001).24) Z. Sefrioui, D. Arias, M. Varela, J.E. Villegas, M.A. López de la Torre, C. León, G.D. Loos, J. Santamaría, Phys. Rev. B, 60, 15, 423 (1999).25) It is important to note that while these soft anneals do not cause deoxygenation in single YBCO films, slight deoxygenation is favored in superlattices by the strained structure of the ab plane.26) N. Nücker, J. Fink, J.C. Fuggle, P.J. Durha, W.M. Temmerman, Phys. Rev. B, 37, 5158 (1988).27) N.D. Browning, J. Yuan, L.M. Brown, Physica C, 202, 12 (1992).28) N.D. Browning, M.F. Chisholm, D.P. Norton, D.H. Downdes, S.J. Pennycook, Physica C, 212, 185 (1993).29) N.D. Browning, J.P. Buban, P.D. Nellist, D.P. Norton, S.J. Pennycook, Physica C, 294, 183 (1998).30) G. Nieva, E. Osquiguil, J. Guimpel, M. Maenhoudt, B. Wuyts, Y. Bruynseraede, M.B. Maple, I.K. Schuller, Appl. Phys. Lett., 60, 2159 (1992).31) C. Bandte, Phys. Rev. B, 49, 9064 (1994).32) M. Rasolt, T. Edis, Z. Tesanovic, Phys. Rev. Lett., 66, 2927 (1991).33) Y. Matsuda, S. Komiyama, T. Terashima, K. Shimura, Y. Bando, Phys. Rev. Lett., 69, 3228 (1992).34) T. Terashima, K. Shimura, Y. Bando, Y. Matsuda, A. Fujiyama, S. Komiyama, Phys. Rev. Lett., 67, 1362 (1991).35) M.Z. Cieplak, S. Guha, S. Vadlamannati, T. Giebultowicz, P. Lindenfeld, Phys. Rev. B, 50, 12, 876 (1994).
NO © 2002 The American Physical Society. This work was supported by CICYT MAT2000-1468, Fundación Ramón Areces and CAM07N/0008/2001.
NO CICYT
NO Fundación Ramón Areces
NO CAM
DS Docta Complutense
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