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Proceedings of the Joint Nordic Spring Meeting '92 ?>*«)3>OOOlt>A -j^t DI Risø-R-628(EN) Proceedings of the Joint Nordic Spring Meeting '92 Edited by Per-Anker Lindgård JOINT NORDIC SPRING MEETING 7-10 MAY 1992 Nyborg Strand, Denmark Risø National Laboratory, Roskilde, Denmark May 1992 Proceedings of the Joint Nordic K-*«(BO Spring Meeting '92 Edited by Per-Anker Lindgård Risø National Laboratory, Roskilde, Denmark May 1992 Abstract Proceedings in the form of extended abstracts of the Joint Nordic Spring Meeting '92 including the 3rd Nordic Conference on Surface Science, the Nordic Symposium on Com­ puter Simulation, and 3rd Nordic Symposium on Superconductivity. In addition there are contributions from workshops on the Physics of Small Clusters, on Soft Condensed Matter Physics and from an Electronic Properties Workshop. The proceedings contain over 300 contributions on the mentioned subjects. Further, there are several contributions on general solid state subjects, magnetism, semiconductors etc. ISBN 87-550-1810-6 ISSN 0106-2840 Gransk Service Ris«, 1992 RiM-R-628(EN) THE SOLID STATE SECTIONS OF THE NORDIC PHYSICAL SOCIETIES in cooperation with the 3rd NORDIC CONFERENCE ON SURFACE SCIENCE 6th NORDIC SYMPOSIUM ON COMPUTER SIMULATION 3rd NORDIC SYMPOSIUM ON SUPERCONDUCTIVITY JOINT NORDIC SPRING MEETING 7-10 MAY 1992 Nyborg Strand, Denmark Sponsors: NorFa The Danish Natural Science Research Council NORDITA NOVOs Fond Thomas B.Thrige's Fond Kraks Fond Knud Højgaards Fond Danish Ministry of Research and Education The Materials Development Program (MUP) on: High-Tc Superconducting Thin Film Components The Materials Development Program on: Synchroton Radiation Studies of Surfaces Ri*#-R-62S(EN) 3 ORGANIZING COMMITTEES: Plenum Scientific Committee: Per-Anker Lindgard, Ris«, Denmark (chairman) Henrik Jeldtoft Jensen, NBI, Denmark (secretary) Jens Onsgaard, Odense, Denmark Ole G. Mouritsen, DTH, Denmark Niels Hessel Andersen, Ris«, Denamrk Advisory Committee: Bengt Lundquist, Goteborg, Sweden Risto Nieminen, Espoo, Finland Olav Steinsvoll, Oslo, Norway Local Organizing Committee: J. Onsgaard and S. Tougaard, Odense, Denmark Lajla Frederiksen (secretary), Ris« , Denmark SYMPOSIA COMMITTEES: Symposium A J. Onsgaard, Odense, Denmark (chairman) M. Lindroos, Tampere, Finland J.K. Grepstad, Trondheim, Norway L. Johansson, Linkoping, Sweden I. Lindau, Lund, Sweden N. Mirtensson, Uppsala, Sweden 1. Chorkendorff, DTH, Denmark I. Stensgaard, Århus, Denmark Symposium B OG. Mouritsen, DTH, Denamrk (chairman) K. Kaski, Tampere, Finland A. Hansen, Oslo, Noway B. Jonsson, Lund, Sweden S. Toxværdj Copenhagen, Denmark E. Praestgard, Roskilde, Denmark Symposium C N. H. Andersen, Ris«, Denmark (chairman) J.T. Eriksson, Tampere, Finland A.J. Kallio, Oulun Yliopisto, Finland T. Sigfusson, Reykjavik, Island H. Fjellvag, Oslo, Norway K. Fossheim, Trondheim, Norway K.V. Rao, Stockholm, Sweden G. Wendin, Goteborg, Sweden Symposium D \ Plenum and Advisory Scientific Committees Ris#-R-©28(EN) Preface The idea for the present Joint Nordic Spring Meeting stems partly from a conversation at one of the bars at the 1989 APS meetiug in Anaheim, California. A group of Scandinavians had traveled a quarter of the circumference of the earth in order to take part in this gigantic confluence of scientific exchange in which about 7000 people from all over the world participate. This meeting provides a (very) general overview of the current activities on a world wide scale and is certainly inspiring. We thought that the idea of holding a similar meeting on a Nordic level would be interesting. First of all, it seems irrational to have to travel to America in order to discover what our neighbouring colleagues are doing. Secondly, because a larger Nordic meeting, in contrast to individual national meetings, would more easily be able to finance and attract key-investigators from outside the Nordic countries. Finally, it is clear that the more we collaborate and join forces in areas of common interest, the more powerful will science in the Nordic countries become. The collective effect of a lively exchange of ideas is synergetic. The total outcome is greater than the sum of the individual inputs. Inspired by the APS meeting, we took steps to revive the Joint Nordic Meetings which have been held at intervals of about 10 years, but this time to organize it in the form of symposia and workshops in order to preserve the intimacy of a small symposium, yet rimultanously to open for broader contacts. We were very lucky that three Nordic Symposia on very timely subjects were doe to be held in Denmark in 1992. It was encouraging that the Nordic Physical Societies warmly supported the idea. A large number of fondations, mentioned on the front cover, have backed the project financially, which has enabled us to invite several international key speakers and also to support the participation of many students who wish to present their work for a large audience - as well as a number of other participants. This support is gratefully acknowledged. The increasing integration and collaboration in Europe does not render Nordic collaboration super­ fluous. On the contrary, we need to develop and strengthen the scientific community in our countries to make sure that we maintain the highest international level. Science in the Nordic countries should continue as an integrated and lively part of the international activity. This is only possible as long as we have an active scientific environment which can attract fellow scientist from outside the Nordic countries and which enables us to make interesting contributions abroad. The proceedings of the JOINT NORDIC SPRING MEETING '92 are printed in the Ris#-R Report series, which is widely distributed and published via library networks. The contributions in the form of extended abstracts constitute a brief status of the physics going on in the Nordic countries in the selected areas. We have encouraged the contributors to provide references to more complete accounts. as well as to give full addresses and other contact information. A main purpose of these proceedings is to function as a key for increased contact and collaboration. Of course, physics is not regional and therefore it is a special pleasure that the topics of the meeting have attracted contributors from a broad range of countries. The cruci?J point is to open up contacts between related fields of physics. It is the hope the meeting will contribute to this. Per-Anker Lindgard Riw-R-628(KN) S CONTENTS JOINT NORDIC SPRING MEETING *92 Pie J. VILLAIN. Two-dimensional physics: from theorists' dreams to real surface physics 31 M. GRANT. Fluctuations in first-order phase transitions 32 R.M. FLEMING. Supercondmctimty rå oBtah intercalated Go 33 J. ALS-NIELSEN. Structures of two-dimensional soft condensed matter 35 S. LEIBLER. Membranes, random surfaces, and self-assembly 36 A: 3RD NORDIC CONFERENCE ON SURFACE SCIENCE 37 AFr K.W. JACOBSEN. Energetics and dynamics of surfaces and clusters 38 C.T. RETTNER, DJ. AUERBACH, and H.A. MICHELSEN. Molecular beam studies of elementary gas-surface reactions: dissociation and formation of hydrogen at a Cu(lll) surface 39 T.A. NISSILA, W.K. HAN, and S.C YING. Diffusion anomaly near structural phase transitions 41 L. WANG, Q. GE, and G.D. BILLING. Inelastic scattering and chemisorption of CO on a Cu(lll) surface 42 R.J. BEHM. Thermodynamic and kinctir effects in the growth of thin metal films 43 F. BESENBACHER, L. EIERDAL, I. STENSGAARD, and E. LÆGSG A ARD. The dynamics of oxygen-induced restructuring of Ni (110) studies by scanning tunneling microscopy 44 F. OWMAN and P. MÅRTENSSON. Scanning tunneling microscopy studies of hydrogen exposure of In covered Si('It I) surfaces 45 L.L. MADSEN. STM observation of organic molecules adsorbed on graphite 46 Ritt-R-628(EN) 7 IIS. HANSEN, C. JANSSON, and S TOUGAARD. Growth structure of Au mné Ag on Nt(III) mud St(lll) determined *y inelmstic peak shope analysis 47 W.J. KAISER, S J. MANION, A.M. MILLIKEN, L.D. BELL, and M.H. HECHT. New scanning prove microscopies of surface mud subsurface structure 48 J.T. YATES, Jr., C.C. CHENG, Q. GAO, H. GUTLEBEN, ML. COLAIANNI, P. CHEN, and W.J. CHOYKE. Surfoce chemistry on silicon-turning rtmctions on mud off 49 M. PERSSON, K. BURKE, D. LANGRETH, and Z.Y. ZHANG. Limitations of a centra/ force model of vHrutionul phase relaxation 51 B. HAMMER, KW. JACOBSEN, and J.K. NØRSKOV. Dissociation of H7 on Al(llO) 52 ASa R. NYHOLM. Accent developments at MAX-LAB 53 A. NILSSON. Core level spectroscopy of adsorhatcs 55 S. AMINPIR0OZ, A. SCHMALZ, L. BECKER, J. HAASE, DR. BATCHELOR, M. NIELSEN, D.L. ADAMS, and E. BØGH. Na adsorption on Al(lll) and Al(IOO): a SEXAFS study 57 A. HAMAWI and L. WALLDÉN. Some electronic properties of Si(lOO)/Na: interface metallization surface photovoltage and Na quantum well states 58 J. BURCHHARDT, M. NIELSEN, D.L. ADAMS, C STAMPFL, and M. SCHEFFLER. Simple and reconstructed adsorption structure* for Al(ttl)-K-(y/Z x y/3)R8(T 59 S. RAAEN. The question of referencing core-level* in photocleclron spectroscopy 60 R. MANZKE. High-resolution photoemission studies ofhigh-Te superconductor* 61 M. LINDROOS, A. BANSIL, and J.C. CAMPUZANO. Angle-resolved photoemission intensity calculation* in YBafiuiO-, 62 Ris#-R-628(EN) PA. BRUWILER, A J. MAXWELL. A. NILSSON. N. MARTENSSON. and R.L. WHETTEN. High-resolution photodectron spectroscopy of Cm and KrCo» 63 A. OLIVA and P. SIGMUND. Theory of alloy sputtering 64 B HERNNAS, R.J. GUEST, A. NILSSON. 0. BJORNEHOLM, P. BENNICH. A.SANDELL. RE PALMER, and N. MÅRTENSSON. NEXAFS study of the molecular orientation for physisorbed oxygen on graphite mud Ag(llO) 65 C. SCHARFSCHWBRDT, F. SCHNEIDER. J. KUTSCHER, T. LIEDTKE, and M. NEUMANN. The structure of NiO, CoO und MnO studied km X-ray photoekctrou diffmction 66 P.J. MØLLER and J. NERLOV. Investigations of the electronic end geometric structures of Cu/ZnO( 1150) 67 P.
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