<<

Molecular of Oxides

La, Sr Nd

c^ft.

Downloaded from https://www.cambridge.org/core. IP address: 170.106.33.42, on 29 Sep 2021 at 15:41:59, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1557/S0883769400059625 A NEW CLUSTER ISBORN

General lonex acquired by High Voltage Engineering Europa B. V. In December 1987 High Voltage Engineering Europa B.V. After addition of the newiy acquired products HVEE's product (HVEE) acquired Dowlish Developments Ltd (DD), an lines include: accelerator tube manufacturer located in the United Kingdom. - Ion Accelerator Systems On April 10,1989, HVEE purchased the General lonex • Air insulated accelerators up to 500 kV Analytical Product Group f rom Genus Inc. based in the United • Single ended Van de Graaff accelerators up to 4 MV States. • Tandem Tandetron accelerators up to 3 MV/TV - Research ion implanters Through this acquisition HVEE positions itself as the largest • Beam énergies 10 keV-9 MeV and higher and most diverse manufacturer of particle accelerators for the - Systems for ion beam analysis scientific and industrial research communities. • Systems for RBS, PIXE, PIGE, NRA, ERD, MACS and The acquired General lonex (Gl) product lines, which include MEIS the Tandetron accelerator Systems and Model 4175 RBS - Components Analyser, will be manufactured in HVEE's new, well-equipped • HV power supplies, électron and ion accelerator tubes, ion facility in , The Netherlands. sources beamline components, beam monitoring equipment, UHV sample manipulators, etc. World wide marketing of ail products from HVEE, DD and Gl will originate from HVEE Amersfoort with sales and service Forfurther information on this transaction and product offices in the USA, Europe and . literature please contact HVEE in Amersfoort/NL.

More Energy for Research

Downloaded from https://www.cambridge.org/coreHIGH VOLTAG. IP address: 170.106.33.42E, onENGINEERIN 29 Sep 2021 at 15:41:59, subject to the CambridgeG EUROP Core terms of use, availableA B. at https://www.cambridge.org/core/termsV . https://doi.org/10.1557/S0883769400059625P.O. Box 99,3800 AB Amersfoort, The Netherlands. Phone: (+31 ) 33 - 619741. Fax: (+31 ) 33 - 615291. Télex: 79100 HIVEC NL Sales Office for USA & CANADA: Peabody Scientific, P.O. Box 2009, Peabody, MA 01960, USA Phone: (508) 535-0444, Fax: (508) 535-5827 IMIRISI

BULLETIN May 1990 A Publication of the Materials Research Society VolumeXV,Number5 ISSN: 0883-7694 CODEN: MRSBEA

SPECIAL FEATURE MRS NEWS

23 The Molecular Engineering 40 MRS Committees Focus on •* •? of Oxides Expansion, Awareness, Von Hippel Address from Excellence in 1990 i%ffigfa .£*5$j*rV the 1989 MRS Fall Meeting 44 1990 MRS Fall Meeting J.B. Goodenough ()iw Call for Papers

DEPARTMENTS FEATURES &££&• .;k^i^ 31 Up Close: Physical 4 Material Matters Chemistry Cluster of the 8 Research/Researchers University of Amsterdam J. Elders 15 Research Resources ON THE COVER: A figure from Prof. John B. Goodenough's Von Hippel Address given at the 35 Up Close: Science of 16 From Washington 1989 MRS Fall Meeting in Boston. Prof. Materials at Trinity Collège, Goodenough discussed "four fundamental 48 Journal of Materials problems relevant to high Tc superconductivity University of Dublin Research in the copper oxides." In speaking about J.M. Kelly and J. McGilip intergrowth structures he used this figure to 52 Historical Note depict the T/O and T'tetragonal structures of La2CuOv The arrows in the left structure 56 Book Reviews indicate coopérative oxygen-atom displace­ TECHNICAL FEATURE ments in orthorhombic (0) phase T

Downloaded from https://www.cambridge.org/core. IP address: 170.106.33.42, on 29 Sep 2021 at 15:41:59, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1557/S0883769400059625 MÏRTS! BULLETIN Materials Research Society • 9800 McKnight Road • Pittsburgh, PA15237 MRS BULLETIN

Editer Associate Editer—Europe Chairman—Editoriai Boards G. A. Oare I. W. Boyd E. N. Kaufmann (412)367-3036 University Collège London Argonne National Laboratory Dept. of Electronic and Assistant Editer Argonne, Illinois Electrical Engineering F. M. Wieloch Torrington Place International Advisory Board (412)367-3036 London WCIE7 JE M. Balkanski R. Roy United Kingdom Copy Editer University of Pierre and Marie Curie Pennsylvania State University 01-387-7050 S. W. Morelli Paris, France University Park, Pennsylvania ext. 3956 or 7304 Design/Production S.Hsu G. D. W. Smith Contributors C. Love, W. Appman Chung Shan Institute of Science K. J. Anderson, C. D. Chaffee (412)367-3003 and Technology Oxford, United Kingdom Taiwan, China Editoriai Assistant T. Sugano J. Dininny R. Krishnan University of (412) 367-3036 Défense Research and Tokyo, Japan Development Organization Advertising and Circulation J. S. Williams New Delhi, India M. E. Kaufold Royal Melbourne Institute of (412) 367-3036 H. D. Li Technology Melbourne, Australia 1990 MRS EXECUTIVE COMMUTEE Beijing, China

Président Secretary Technical Editoriai Board R. R. Chianelli CM. Jantzen J. C. C. Fan R. L. Schwoebel Exxon Research Westinghouse Savannah Kopin Corporation Sandia National Laboratories and Engineering River Co. Taunton, Massachusetts Albuquerque, New Mexico First Vice Président and Treasurer F. Y. Fradin R. C. Sundahl President-Elect S. M. Kelso Argonne National Laboratory Intel Corporation J. B. Roberto Therma-Wave, Inc. Argonne, Illinois Chandler, Arizona Oak Ridge National Laboratory Immédiate Past Président G. L. Liedl K. C. Taylor R. R H. Chang Purdue University General Motors Second Vice Président Northwestern University West Lafayette, Indiana Warren, Michigan S. Cargill IBM T.J. Watson S. Namba Research Center Osaka, Japan Executive Director Materials Research Society MRS BULLETIN John B. Ballance Publications Subcommittee M. H. Bennett-Lilley P. Sliva Texas Instruments General Electric EUROPEAN MRS Dallas, Texas Largo, Florida P. Siffert R. R. Chianelli J. M. Phillips Centre de Recherches Nucléaires Exxon Research and Engineering AT&T Bell Laboratories Laboratoire PHASE Annandale, New Jersey Murray Hill, New Jersey 67037 Strasbourg, Cedex, France Téléphone: (88) 28 65 43 R. J. Eagan C. W. White Fax: (88) 28 09 90 Sandia National Laboratories Oak Ridge National Laboratory Albuquerque, New Mexico Oak Ridge, Tennessee ABOUT THE MATERIALS RESEARCH SOCIETY

The Materials Research Society (MRS) is a nonprofit scientific association MRS publishes symposium proceedings, the MRS BULLETIN, Journal of founded in 1973 to promote interdisciplinary goal-oriented basic research Materials Research, and other current scientific developments. on materials of technological importance. Membership in the Society in- MRS BULLETIN (ISSN: 0883-7694) is published 12 times a year by the cludes more than 9,500 scientists from industrial, government, and univer­ Materials Research Society, 9800 McKnight Road, Pittsburgh, PA 15237. sity research laboratories in the United States and more than 25 countries. Membership in MRS includes $25.00 ($15.00 for students) from member­ The Society's interdisciplinary approach to the exchange of technical infor­ ship dues to be applied to a subscription to the MRS BULLETIN. Applica­ mation is qualitatively différent from that provided by single-discipline pro- tion to mail at second class rates is pending at Pittsburgh, PA and at fessional societies because it promotes technical exchange across the additionai mailing offices. POSTMASTER: Send address changes to MHS various fields of science affecting materials development. MRS sponsors BULLETIN in care of the Materials Research Society, 9800 McKnight two major international annual meetings encompassing approximately 40 Road, Pittsburgh, PA 15237; téléphone (412) 367-3003; fax (412) 367-4373. topical symposia, as well as numerous single-topic scientific meetings Back volumes of this publication are available in 16mm microfilm, 35mm each year. It recognizes professional and technical excellence, conducts microfilm, or 105mm microfiche through University Microfilms Inc., 300 short courses, and fosters technical exchange in various local géographie North Zeeb Road, Ann Arbor, Michigan 48106. régions through Section activities and University Chapters. MRS is an Affiliated Society of the American Institute of Physics and partici­ pâtes in the international arena of materials research through associations Downloadedwit fromh professiona https://www.cambridge.org/corel organizations suc. IPh address: as Europea 170.106.33.42n MRS., on 29 Sep 2021 at 15:41:59, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1557/S0883769400059625 NOWHITYOURTOUGHEST THIN FILM SPECS. REPEATEDLY

Introducing the new Inficon Thin Film Controller. The Inficon IC/4 PLUS brings you even doser to total process security, with a unique measurement System that ensures greater repeatability, better analysis, finer control, and improved accuracy of déposition rate and final thickness. Now you can get longer crystal life, lower rates of déposition, 20 times higher resolution... and less work, with an "Auto Z" feature that éliminâtes manual Z-Ratio calculations. For a new brochure call 1-800-448-3400, ext 401. (In Canada call 1-416-851-7327.)

• LEYBOLD INFICON INC. 6500 Fly Road, E. Syracuse, NY13057 (315) 434-1100, TFX 315-437-3803

m LEYBOLD INFICON I n n ovati ve Vac u u m Technology Downloaded from https://www.cambridge.org/core. IP address: 170.106.33.42, on 29 Sep 2021 at 15:41:59, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1557/S0883769400059625