{"id":1232,"date":"2022-01-25T20:10:01","date_gmt":"2022-01-25T12:10:01","guid":{"rendered":"http:\/\/ustb.cc\/zh\/?p=1232"},"modified":"2022-04-14T00:52:45","modified_gmt":"2022-04-13T16:52:45","slug":"2022crystallographyschool","status":"publish","type":"post","link":"http:\/\/ustb.cc\/zh\/2022crystallographyschool\/","title":{"rendered":"2022 Spring Festival Beijing Crystallography School"},"content":{"rendered":"\n

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2022 Spring Festival Crystallographic School
and
Workshop on Crystal-field Applications<\/strong><\/h1>\n\n\n\n

University of Science and Technology Beijing, China
1-14 February 2022<\/h2>\n\n\n\n
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Lecturers:<\/h2>\n\n\n\n

Massimo Nespolo (MN) <\/strong>(Universit\u00e9 de Lorraine, Facult\u00e9 des Sciences et Technologies, Vandoeuvre-l\u00e8s-Nancy cedex France)<\/p>\n\n\n\n

Mois I. Aroyo (MIA) <\/strong>(Physics Department, University of the Basque Country, UPV\/EHU, Bilbao, Spain)<\/p>\n\n\n\n

Leopoldo Suescun (LS) <\/strong>(Universidad de la Republica, Montevideo, Uruguay)<\/p>\n\n\n\n

Zhen Song (ZS) <\/strong>(University of Science & Technology Beijing, China)<\/p>\n\n\n\n

Timetable:<\/h2>\n\n\n\n

Session1<\/em><\/strong> (2 hours): Lectures and Exercises 15:00 \u2013 17:00 (Beijing time, BJT)[8:00-10:00, CET; 4:00-6:00,UYT]<\/p>\n\n\n\n

Tutorial session<\/em><\/strong> (optional): <\/em>18:00 \u2013 19:00 (Beijing time, BJT)[11:00-12:00, CET; 7:00-8:00, UYT]<\/p>\n\n\n\n

Session2<\/em> <\/strong> (2 hours): Lectures and Exercises: 19:00 \u2013 21:00 (Beijing time, BJT)[12:00-14:00, CET; 8:00-10:00, UYT]<\/p>\n\n\n\n

Check the program for the newest time. Some courses will be hold at different times.<\/strong><\/p>\n\n\n\n

Program: on-line meetings via ZOOM and Tencent Meeting<\/h2>\n\n\n\n
Day 1<\/td> Feb 1, 2022, Tuesday<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Session 1: 15:00-17:00 (MN) <\/td><\/tr>
Crystal pattern
Crystal lattice vs. crystal pattern and crystal structure. Symmetry directions in a lattice .Unit cells: primitive cells, multiple cells, conventional cells in 2D and 3D. Crystal families. Symmetry groups and types of symmetry in direct space: morphological symmetry; symmetry of physical properties; symmetry of lattices; symmetry of the unit cell content; symmetry of crystallographic patterns.<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Tutorial session (optional) (18:00-19:00)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Session 2: 19:00-21:00 (MN)<\/td><\/tr>
Crystallographic point groups
Stereographic projection and the morphology of crystals. Hermann-Mauguin symbols for point groups. Basic properties of groups (group axioms, order, multiplication tables, etc.). Subgroups, index, coset decompositions, Lagrange theorem.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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Day 2<\/td> Feb 2, 2022, Wednesday<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Session 1: 15:00-17:00 (MIA) <\/td><\/tr>
Crystallographic point groups (Cont.)
Group actions: conjugation and normalizers. Wyckoff positions for point groups. Relations of Wyckoff positions for a group-subgroup pair. Supergroups of point groups. Overview of crystallographic point groups. Coset decomposition of the space group with respect to its translation subgroup.<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Tutorial session (optional) (19:00-19:40)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Session 2: 19:40-21:40 (MN)<\/td><\/tr>
Space groups \u2013 general introduction:
Periodic structure of the crystalline matter: lattices and their basic properties.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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Watch Replay<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Day 3<\/td> Feb 3, 2022, Thursday<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Session 1: 15:00-17:00 (MN) <\/td><\/tr>
Space groups and their descriptions (cont.):
Structure of space groups: Exercises<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Tutorial session (optional) (18:00-19:00)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Session 2: 19:00-21:00 (MN)<\/td><\/tr>
Space groups and their descriptions (cont.):
Exercises on orthogonal projections of space groups 1.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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Watch Replay<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Day 4<\/td> Feb 4, 2022, Friday<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Session 1: 15:00-17:00 (MN) <\/td><\/tr>
Space groups and their descriptions (cont.):
Exercises on orthogonal projections of space groups 2.<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Tutorial session (optional) (18:00-19:00)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Session 2: 19:00-21:00 (MIA)<\/td><\/tr>
Space groups and their descriptions (cont.):
Space groups and their description in International Tables for Crystallography, Vol. A: Matrix-column formalism in the description of space-group symmetry. Isometries and crystallographic symmetry operations. Matrix-column presentation of symmetry operations. Symmetry elements: geometric elements and element sets.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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Watch Replay<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Day 5<\/td> Feb 7, 2022, Monday<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Session 1: 15:15-17:15 (MIA) <\/td><\/tr>
Transformations of the coordinate systems:
Change of origin and orientation. Conventional and non-conventional descriptions of space groups; ITA-settings.
Bilbao Crystallographic Server: Computer databases and access tools to crystallographic symmetry data for space groups<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Tutorial session (optional) (18:15-19:00)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Session 2: 19:00-21:00 (MIA)<\/td><\/tr>
Subgroups of space groups: types of subgroups of space groups. Maximal subgroups in International Tables for Crystallography, Vol. A1. Hermann theorem. Maximal subgroups; series of isomorphic subgroups. Coset decomposition.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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Watch Replay<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Day 6<\/td> Feb 8, 2022, Tuesday<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Session 1: 15:00-17:00 (MN) <\/td><\/tr>
Group-subgroup relations between space groups (cont.)
Domain-structure analysis in structural phase transitions. Relations of Wyckoff positions for a group-subgroup pair.<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Tutorial session (optional) (18:00-19:00)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Session 2: 19:00-21:00 <\/strong>(LS)<\/td><\/tr>
Reciprocal space
Crystallographic calculations in reciprocal space. Introduction to diffraction.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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Day 7<\/td> Feb 9, 2022, Wednesday<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Session 1: 15:00-17:00 (LS) <\/td><\/tr>
Diffraction symmetry
Laue classes, Friedel’s law, resonant scattering. Integral, zonal and serial reflection conditions and their use to determine the space-group type. Special reflection conditions.<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Tutorial session (optional) (18:00-19:00)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Session 2: 19:00-21:00 (MIA)<\/td><\/tr>
Group-subgroup relations between space groups (cont.)
Computer databases and access tools to crystallographic symmetry data for space groups. Maximal subgroups data and related computer application in the Bilbao Crystallographic Server.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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Watch Replay<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Day 8<\/td> Feb 10, 2022, Thursday<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Session 1: 15:15-17:15 (MIA) <\/td><\/tr>
Crystal-structure tools of the Bilbao Crystallographic Server
Crystal-structure descriptions. Descriptions of crystal structures with respect to different ITA settings of the space groups (the program SETSTRU). Equivalent crystal structure descriptions (the programs EQUIVSTRU and COMPSTRU). Crystal-structure descriptions compatible with symmetry reduction (the program TRANSTRU).
Hands-on practicals with the computer tools for crystal-structure descriptions<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Tutorial session (optional) (18:15-19:00)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Session 2: 19:00-21:00 (LS)<\/td><\/tr>
Crystal-structure tools of the Bilbao Crystallographic Server (cont.)
Crystal-structure relationships. Family trees (Baernighausen trees) of crystal structures: aristotype (basic) and hettotypes (derivative) structures).
Hands-on practicals with the program STRUCTURE RELATIONS.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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Watch Replay<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Watch Replay<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n<\/div>\n\n\n\n
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Day 9<\/td> Feb 11, 2022, Friday<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Session 1: 15:15-17:00 (MIA) <\/td><\/tr>
Crystal-structure tools of the Bilbao Crystallographic Server (cont.)
Structural pseudosymmetry. Pseudosymmetry search for new ferroics. Application in structural phase transitions.
Hands-on practicals with the program PSEUDO.<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Tutorial session (optional) (18:15-19:00)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Session 2: 19:00-21:00 (MIA)<\/td><\/tr>
General remarks on representations
Representations of discrete groups: definition and basic properties. Reducible and irreducible representations. Equivalence of representations. Theorem of orthogonality. Characters of representations and character tables. Subduced and direct-product representations<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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Watch Replay<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Day 10<\/td> Feb 14, 2022, Monday<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Session 1: 15:15-17:15 (MIA) <\/td><\/tr>
Representations of point groups
Representations of Abelian groups: cyclic groups and direct products of cyclic groups. Character tables of representations of point groups. Database of Bilbao Crystallographic Server on point-group representations.<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Tutorial session (optional) (18:15-19:00)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Session 2: 19:00-21:00 (ZS)<\/td><\/tr>
Crystal-field theory
Group theory-based selection rules, energy level splitting on symmetry degradation, crystal-field potentials of point groups.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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Registration<\/strong><\/h1>\n\n\n\n
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ZOOM user<\/td><\/tr>
Register via the following link to get the ZOOM link. You will also have the opportunity to ask questions and get help directly from the teachers.
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Tencent Meeting user<\/td><\/tr>
The course will be broadcasted simultaneously via Tencent Meeting: 447-4154-9220<\/mark><\/strong>

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Tutorial session<\/h1>\n\n\n\n

The tutorial session will be optional. One or more teachers will answer questions on-line. However, it will be only hold via ZOOM. <\/p>\n\n\n\n

Course PDFs and Exercises<\/mark><\/strong><\/h1>\n\n\n\n
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Massimo Nespollo<\/h2>\n\n\n\n
1_Introduction<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
2_Miller_Indices<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
3_Intrroduction_space_groups<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
4_Domains<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
Exercice-projection<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
Solution to exercises<\/a>\u4e0b\u8f7d<\/a><\/div>\n<\/div><\/div>\n\n\n\n
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Mois Aroyo<\/h2>\n\n\n\n
Lecture1_PointGroups<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
Lecture2_SpaceGroups_ITA<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
Lecture3_CoordTrans<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
Lecture4_GroupSubgr<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
Lecture7_Irreps_Gen<\/a>\u4e0b\u8f7d<\/a><\/div>\n<\/div><\/div>\n\n\n\n
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Leopoldo Suescun<\/h2>\n\n\n\n
Class1-FourierTransform+ReciprocalSpace+Calculations+Laue<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
Class2-Ewald+StructureFactor+SystematicAbsences+SGdetermination<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
Class3-Application_of_StructureTools_of_BCS<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
FilesForParticipants_2022SpringFestivalBJ<\/a>\u4e0b\u8f7d<\/a><\/div>\n<\/div><\/div>\n\n\n\n
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Exercises<\/h2>\n\n\n\n
Exercises_Beijing2022<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
ExerciseData-Beijing2022<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
sgtable2o3o014<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
sgtable2o3o035<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
sgtable2o3o099<\/a>\u4e0b\u8f7d<\/a><\/div>\n\n\n\n
sgtable2o3o141<\/a>\u4e0b\u8f7d<\/a><\/div>\n<\/div><\/div>\n\n\n\n
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Local organizer<\/h1>\n\n\n\n

Quanlin Liu<\/strong> University of Science and Technology Beijing (USTB)<\/p>\n\n\n\n

Zhen Song<\/strong> University of Science and Technology Beijing (USTB)<\/p>\n\n\n\n

For any inquires, please refer to zsong%ustb.edu.cn (change % to @).<\/p>\n<\/div>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

2022 Spring Festival Crystallographic SchoolandWorkshop […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-1232","post","type-post","status-publish","format-standard","hentry","category-lectures"],"_links":{"self":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/1232","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/comments?post=1232"}],"version-history":[{"count":59,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/1232\/revisions"}],"predecessor-version":[{"id":1485,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/1232\/revisions\/1485"}],"wp:attachment":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/media?parent=1232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/categories?post=1232"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/tags?post=1232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}