RT Journal Article
T1 Current imaging tunneling spectroscopy characterization of YBa_2Cu_3O_(7-X) and Bi_2Sr_2CaCu_2O_(8+X) single crystals
A1 Díaz-Guerra Viejo, Carlos
A1 Piqueras de Noriega, Javier
AB A combined scanning electron microscope-scanning tunneling microscope (SEM-STM) system has been used to investigate surface topographic and electronic properties of YBa2Cu3O7-x (YBCO) and Bi2Sr2Ca-Cu2O8+x (Bi-2212) single crystals. Current imaging tunneling spectroscopy (CITS) measurements reveal the coexistence of areas with metallic and semiconducting characteristics in regions close to micron-sized growth steps imaged by SEM in the YBCO and Bi-2212 samples. On the contrary, a metallic behaviour is always found by CITS in extended areas of the crystals far from the growth steps. This inhomogeneous electronic behaviour is attributed to the defects related to the surface oxygen stoichiometry or distribution. Modifications induced by means of voltage pulses applied with the STM have also been investigated. We report on the threshold voltages necessary to modify the surface of YBCO and Bi-2212 single crystals. Furthermore, CITS measurements have been carried out in the modified areas in order to analyze the surface alterations caused in these materials.
PB Elsevier Science BV
SN 0921-4534
YR 2000
FD 2000-07-15
LK https://hdl.handle.net/20.500.14352/59133
UL https://hdl.handle.net/20.500.14352/59133
LA eng
NO [1]. J. Summhammer, K. Kundzins, G. Samadi, R.M. Schalk, H.W. Weber, S. Proyer, E. Stangl, D. Bäuerle, Physica C 242 (1995) 127.[2]. T. Haage, J. Zegenhagen, H.-U. Habermeier, M. Cardona, Phys. Rev. Lett. 80 (1998) 4225.[3]. A. de Lozanne, Supercond. Sci. Technol. 12 (1999) R43.[4] K. Kitazawa, Science 271 (1996) 313.[5]. P. Mallet, D. Roditchev, W. Sacks, D. De´fourneau, J. Klein, Phys. Rev. B 54 (1996) 13324.[6]. S. Kaneko, N. Nishida, K. Mochiku, K. Kadowaki, Physica C 298 (1998) 105.[7]. S. Behler, P. Jess, A. Baratoff, H.J. Guntherodt, Physica C 235 (1994) 2703.[8] I. Maggio-Aprile, Ch. Renner, A. Erb, E. Walker, B. Fischer, Nature 390 (1997) 487.[9]. C. Renner, B. Revaz, K. Kadowaki, I. Maggio-Aprile, Ø. Fischer, Phys. Rev. Lett. 80 (1998) 3606.[10] A.D. Kent, I. Maggio-Aprile, Ph. Niedermann, Ø. Fischer, Phys. Rev. B 39 (1989) 12363.[11]. Z. Zhang, C.M. Lieber, Phys. Rev. B 46 (1992) 5845.[12]. P.W. Anderson, in: K.S Bedell, D. Coffey, D.E. Meltzer, D. Pines, J.R. Schrieffer (Eds), High Temperature Superconductivity, Addison-Wesley, Redwood, 1990.[13]. R.J. Hamers, R.M. Tromp, J.E. Demuth, Phys. Rev. Lett. 56 (1986) 1972.[14]. C. Díaz-Guerra, J. Piqueras, J. Appl. Phys. 80 (1996) 998.[15]. C. Díaz-Guerra, J. Piqueras, Physica C 275 (1997) 37.[16]. C. Díaz-Guerra, J. Piqueras, Appl. Phys. Lett. 71 (1997) 2830.[17]. G. Bertsche, W. Clauss, D.P. Kern, Appl. Phys. Lett. 68  (1996) 3632.[18] S. Kondo, M. Lutwyche, Y. Wada, Appl. Surf. Sci. 75  (1994) 39.[19]. K. Terashima, M. Kondoh, Y. Takamura, H. Komaki, Appl. Phys. Lett. 59 (1991) 644.[20] G. Bertsche, W. Clauss, F.E. Prins, D.P. Kern, J. Vac. Sci. Technol., B 16 (1998) 2833.[21] U. Geyer, G. von Minnigerode, H.-U. Krebs, J. Appl. Phys. 76 (1994) 7774.[22] A. Asenjo, A. Buendía, J.M. Gómez-Rodríguez, A.M. Baró, J. Vac. Sci. Technol., B 12 (1994) 1658.[23]. J.A. Stroscio, R.M. Feenstra, A.P. Fein, Phys. Rev. Lett. 57 (1986) 2579.[24]. N.D. Lang, Phys. Rev. B 34 (1986) 5947.[25]. R.M. Feenstra, J.A. Stroscio, A.P. Fein, Surf. Sci. 181 (1987) 295.[26].L.E. van de Leemput, P.J. van Bentum, F.A. Driessen, J.W.  Gerritsen, H. van Kempen, L.W. Schreurs, P. Bennema, J. Microsc. 152 (1988) 103.[27]. D.N. Davydov, A. Quivy, P. Diko, R. Deltour, M. Mehbod, M. Ye, Solid State Commun. 86 (1993) 267.[28]. H.L. Edwards, J.T. Market, A.L. Lozanne, Phys. Rev. Lett. 69 (199). 2967.[29]. S.J. Pennycook, M.F. Chisholm, D.E. Jesson, R.M. Feenstra, S. Zhu, X.Y. Zheng, D.J. Lowndes, Physica C 202  (1992) 1.[30]. M. Matsubara, T. Morishita, I. Hirabayashi, Appl. Phys.  Lett. 64 (1994) 1868.[31]. T. Haage, Q.D. Jiang, M. Cardona, H.-U. Habermeier, J. Zegenhagen, Appl. Phys. Lett. 68 (1996) 2427.[32]. C.J. Chen, C.C. Tsuei, Solid State Commun. 71 (1989) 33.[33]. C.K. Shih, R.M. Feenstra, G.V. Chandrashekar, Phys. Rev.  B 43 (1991) 7913.[34]. W. Drube, F.J. Himpsely, G.V. Chandrashekhar, M.W. Shafer, Phys. Rev. B 39 (1989) 7328.[35]. C.G. Olson, R. Liu, A.B. Yang, D.W. Lynch, A.J. Arko,  R.S. List, B.W. Veal, Y.C. Chang, P.Z. Jiang, A.P. Paulikas, Science 245 (1989) 731.[36]. H.S. Hybertsen, L.F. Mattheis, Phys. Rev. Lett. 60 (1988) 1661.[37]. S.B. Samanta, P.K. Dutta, V.P. Awana, A.V. Narlikar, Euro-phys. Lett. 16 (1991) 391.[38]. B.O. Wells, Z.X. Shen, D.S. Dessau, W.E. Spicer, C.G. Olson, D.B. Mitzi, A. Kapitulnik, R.S. List, A. Arko, Phys. Rev. Lett. 65 (1990) 3056.[39]. Z. Zhang, C.-C. Chen, C.M. Lieber, Phys. Rev. B 45 (1992) 987.[40]. N. Cabrera, N.V. Coleman, in: J.J. Gilman (Ed.), The Art and Science of Growing Crystals, Wiley, New York, 1966.[41]. W.G. Park, S.A. Nepijko, A. Fanelsa, E. Kisker, L. Winkeler, G. Gu¨ntherodt, Solid State Commun. 91 (19949 655.[42].  P. Gómez, J. Piqueras, M.J. Sayagués, J.M. Gómez-Calbet, Solid State Commun. 96 (1995) 45.[43]. P. Gómez, J. Piqueras, A. Remón, J.A. García, J. Jiménez,  A. Torres, Phys. Status Solidi A 157 (1996) 469.[44].  H.J. Mamin, P.H. Guethner, D. Rugar, Phys. Rev. Lett. 65 (1990) 2418.[45]. I. Heyvaert, E. Osquiguil, C. van Haesendock, Y. Bruynser-aede, Appl. Phys. Lett. 61 (1992) 111.[46]. J. Boneberg, M. Bo¨hmisch, M. Ochmann, P. Leiderer,  Appl. Phys. Lett. 71 (1997) 3805 High-Temperature Superconductors, Ca-Cu-O, Thin-Films, Cathodoluminescence Microscopy, Surface Modification, Electronic-Structure, Si(111)2x1 Surface, Growth; Stm, Photoemission
NO © 2000 Elsevier Science B.V.This work was supported by DGES through project PB96-0639.
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