caa a22 4500 378892908 CHVBK 20180305123459.0 cr unu---uuuuu 161128e20040301xx s 000 0 eng 10.1524/zkri.219.3.122.29092 doi (NATIONALLICENCE)gruyter-10.1524/zkri.219.3.122.29092 Egami Takeshi Local crystallography of crystals with disorder [Elektronische Daten] [Takeshi Egami] The assumption of perfect periodicity in the crystal lattice is the most basic tenet of crystallography. However, many materials are not crystalline. Even when they are the atomic structure of real materials is often less than perfectly periodic, and usually deviations from perfect periodicity have significant effects on their properties. Thus in order to characterize the structure of real materials by diffraction the crystallographic approaches need to be complemented by other methods focusing on disorder. B. E. Warren was a pioneer of such alternative, non-crystallographic approaches, including the method of atomic pair-density function (PDF) analysis. With the advent of synchrotron based radiation sources, such as pulsed neutron sources and synchrotron radiation sources, it recently became possible to apply the PDF technique on crystals with and without disorder, covering the whole spectrum of structural order and disorder. Here some of the recent progresses in this approach made in my research group are reviewed. © 2004 Oldenbourg Wissenschaftsverlag GmbH Crystallography nationallicence Inorganic chemistry nationallicence Organic chemistry nationallicence Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 219/3(2004-03-01), 122-129 2194-4946 219:3<122 2004 219 zkri https://doi.org/10.1524/zkri.219.3.122.29092 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/zkri.219.3.122.29092 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Egami Takeshi NATIONALLICENCE 773 0- Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 219/3(2004-03-01), 122-129 2194-4946 219:3<122 2004 219 zkri CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter