"Subgroup structure of magnetic space groups, correlations to representations, and their use in analysis of macro- to microscopic properties of single multidomain multiferroic crystals"@en . . "1"^^ . . . "1326"^^ . . "2"^^ . . "Podgrupy magnetick\u00FDch prostorov\u00FDch grup a jejich vztahy, korelace s representacemi, a u\u017Eit\u00ED k anal\u00FDze makro- i mikroskopick\u00FDch vlastnost\u00ED multidom\u00E9nov\u00FDch multiferoick\u00FDch krystal\u016F"@cs . "2"^^ . "0"^^ . . "2011-12-31+01:00"^^ . . . . "2009-01-01+01:00"^^ . . "multiferroic materials; mode interactions; representations of magnetic space groups; lattice of subgroups of a magnetic space group; engineered multidomain comfigurations; domain wall implications; magnetoelectric effect"@en . "1326"^^ . "The project aim is twofold: 1) To derive subgroup structure of magnetic space groups and correlate constructed lattices of subgroups with representations. On such a basis we will identify those modes and/or mode interactions that can stabilize both electric and magnetic ordering in a phase. Complete database of modes may serve as a clue in search for novel magneto-electrics. For constructing and visualizing lattices of subgroups we will develop a C-program with advanced functions. 2) To determine conceivable engineered domain configurations in single multidomain magnetoelectric (ME) crystals. In parallel, we will investigate domain wall properties in external fields. Comparing effective tensor properties of multidomain configurations of a ME crystal we will establish which of those may allow enhanced ME effect. The results ad 1) & 2) will yield a catalogue of possible cases as a basic measure in looking for multiferroics with strong coupling between both orderings in same phase."@en . . . "C\u00EDl projektu je dvoj\u00ED: 1) Ur\u010Dit podgrupovou strukturu magnetick\u00FDch prostorov\u00FDch grup a korelovat sestrojen\u00E9 svazy podgrup s representacemi. Na z\u00E1klad\u011B t\u00E9to korelace budou identifikov\u00E1ny ty m\u00F3dy a/nebo m\u00F3dov\u00E9 interakce, kter\u00E9 mohou indukovat jak feroelektrick\u00E9, tak magnetick\u00E9 uspo\u0159\u00E1d\u00E1n\u00ED v jedn\u00E9 f\u00E1zi. Vytv\u00E1\u0159en\u00E1 datab\u00E1ze bude cenn\u00FDm vod\u00EDtkem p\u0159i hled\u00E1n\u00ED nov\u00FDch magneto-elektrick\u00FDch (ME) materi\u00E1l\u016F. Pro konstrukci a visualisaci svaz\u016F bude vyvinut program v jazyce C s pokro\u010Dil\u00FDmi funkcemi. 2) Nal\u00E9zt mysliteln\u00E9 um\u011Ble vytv\u00E1\u0159en\u00E9 multidom\u00E9nov\u00E9 konfigurace v ME krystalech. Z\u00E1rove\u0148 budou vy\u0161et\u0159ov\u00E1ny vlastnosti dom\u00E9nov\u00FDch st\u011Bn ve vn\u011Bj\u0161\u00EDch pol\u00EDch. Budou porovn\u00E1ny efektivn\u00ED tensorov\u00E9 vlastnosti mo\u017En\u00FDch konfigurac\u00ED s c\u00EDlem vytypovat ty z nich, je\u017E mohou vykazovat zes\u00EDlen\u00FD ME efekt. Na z\u00E1klad\u011B v\u00FDsledk\u016F ad 1) a 2) bude vytvo\u0159en prim\u00E1rn\u00ED katalog mo\u017En\u00FDch p\u0159\u00EDpad\u016F p\u0159edstavuj\u00EDc\u00ED op\u011Brn\u00FD bod p\u0159i vyhled\u00E1v\u00E1n\u00ED multiferoick\u00FDch materi\u00E1l\u016F se silnou vazbou mezi ob\u011Bmi uspo\u0159\u00E1d\u00E1n\u00EDmi v t\u00E9\u017Ee f\u00E1zi."@cs . "0"^^ .