Scanning Tunneling Microscopy I provides a unique introduction to a novel and fascinating technique that produces beautiful images of nature on an atomic scale. It is the first of three volumes that together offer a comprehensive treatment of scanning tunneling microscopy, its diverse applications, and its theoretical treatment. In this volume the reader will find a detailed description of the technique itself and of its applications to metals, semiconductors, layered materials, adsorbed molecules and superconductors. In addition to the many representative results reviewed, extensive references to original work will help to make accessible the vast body of knowledge already accumulated in this field.

Since the first edition of "Scanning 'funneling Microscopy I" has been pub lished, considerable progress has been made in the application of STM to the various classes of materials treated in this volume, most notably in the field of adsorbates and molecular systems. An update of the most recent develop ments will be given in an additional Chapter 9. The editors would like to thank all the contributors who have supplied up dating material, and those who have provided us with suggestions for further improvements. We also thank Springer-Verlag for the decision to publish this second edition in paperback, thereby making this book affordable for an even wider circle of readers. Hamburg, July 1994 R. Wiesendanger Preface to the First Edition Since its invention in 1981 by G. Binnig, H. Rohrer and coworkers at the IBM Zurich Research Laboratory, scanning tunneling microscopy (STM) has devel oped into an invaluable surface analytical technique allowing the investigation of real-space surface structures at the atomic level. The conceptual simplicity of the STM technique is startling: bringing a sharp needle to within a few Angstroms of the surface of a conducting sample and using the tunneling cur rent, which flows on application of a bias voltage, to sense the atomic and elec tronic surface structure with atomic resolution Prior to 1981 considerable scepticism existed as to the practicability of this approach."

Chinese women in Canada have long suffered from invisibility in academic research and misrepresentation in society; and more specifically, innovative research on Chinese women entrepreneurs as a unique group is virtually non-existent. To fill this gap, this study attempts to bring a group of Hong Kong Chinese immigrant women entrepreneurs to the centre of analysis by exploring the complexity and diversity of their entrepreneurial experiences in terms of the intersection of class, race, ethnicity, gender, and migration. Drawing from their personal narratives, this study offers a comprehensive understanding of these women's projects by detailing the processes from immigration to business start-ups and the operation of these businesses. This analysis documents how these women's projects are rooted in history and attests to the contradictory and diverse impact of racialization, ethnicization, gendering, and class- ification on these women's entrepreneurial pursuits. Taking a provocative approach, this research represents a much needed contribution to entrepreneurship and adds to the literature on race/ethnic relations and women's studies.