دانلود کتاب پارامترهای ترتیبی مواد کوانتومی و میکروسکوپ الکترونی

Quantum materials represent a forefront topic in condensed matter physics, where their diverse phases and properties are intimately linked to multiple order parameters— including lattice, charge, spin, orbital, and topological degrees of freedom. Modern advanced electron microscopy has not only achieved sub-Ångström resolution but has also pioneered new methodologies for probing these order parameters. Furthermore, the ability to focus electron beams to nanometer scales, combined with energy resolution improvements to ~1 eV, enables techniques such as electron energy-loss spectroscopy (EELS), X-ray energy-dispersive spectroscopy (XEDS), and phonon spectroscopy. These methods provide critical insights into bonding, valence states, crystal fields, orbitals, and atomic positions within materials, offering a powerful toolkit for investigating order parameters and their correlation mechanisms in quantum materials. Over the past 40 years, electron microscopy in China has advanced rapidly. My own journey into quantum materials and advanced electron microscopy spans the last decade. I am delighted that my creative young students and I have navigated the world of quantum material order parameters through the lens of electron microscopy. This book aims to synthesize electron microscopy methods developed by Chinese electron microscopists for measuring and correlating order parameters in quantum materials. It also summarizes key findings from our studies on order parameters in ferrous materials, magneto-optical materials, high-temperature superconductors, and related systems. I extend profound gratitude to the leadership and colleagues at Tsinghua University and the Beijing Iron and Steel Research Institute (BISRI). BISRI welcomed me with open arms, introduced me to electron microscopy—which became my lifelong pursuit—and guided me in applying it to advanced materials research aligned with national priorities. Tsinghua University provided a high-level, interdisciplinary environment that enabled me to rapidly establish a new research frontier: probing quantum material order parameters via electron microscopy. I am also deeply indebted to Prof. J. M. Cowley at Arizona State University. During my visit to the Center for Solid State Science, he mentored me in the then-emerging fields of high-resolution electron microscopy and high-spatial-resolution analytical electron microscopy. To my esteemed teacher: I have passed on the foundational knowledge you gave me to my students. This legacy has flourished on Chinese soil, yielding fruitful academic achievements. I thank our era for its opportunities. The Beijing National Center for Electron Microscopy, nurtured in fertile soil and sustained by abundant resources, thrives through the dedication of exceptional talents. I dedicate this book to my motherland and her people, who raised and shaped me.