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Magnetic materials with strong spin-orbit interaction, such as: LaFeAsO, PrFe4P12, YbRu2Ge2, UO2, NpO2, Ce1−xLaxB6, URu2Si2 and many other compounds, are found to have magnetic ordering constituted by high rank multipoles, e.g. quadruple, octople, etc. Due to the strong spin-orbit coupling, multipoles are automatically introduced to the systems when the total angular momentum quantum number J is larger than 1/2. If those multipoles are coupled by some exchange mechanisms, those multipoles could tend to have some ordering as conventional spin 1/2 Heisenberg problem. Except the multipolar ordering, many hidden order phenomena are believed closely related to the multipolar interactions

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  • Se encuentra que materiales magnéticos con interacción espín-órbita fuerte, tales como: LaFeAsO,​ PrFe4P12​, YbRu2Ge2,​ UO2,​ NpO2,​ Ce1−xLaxB6,​ URu2Si2​ y muchos otros compuestos tienen un ordenamiento magnético constituido por multipolos de alto rango (cuádruple, óctuple, etc).​ Debido al fuerte acoplamiento espín-órbita, los multipolos se presentan automáticamente en sistemas donde el número cuántico de momento angular total, J, es mayor que 1/2. Si estos multipolos se acoplan por algún mecanismo de intercambio, estos multipolos pueden tender a tener un ordenamiento como el de un problema de Heisenberg convencional de espín 1/2. Además del ordenamiento multipolar, se cree que muchos otros fenómenos ocultos están estrechamente relacionados con las interacciones multipolares. (es)
  • Magnetic materials with strong spin-orbit interaction, such as: LaFeAsO, PrFe4P12, YbRu2Ge2, UO2, NpO2, Ce1−xLaxB6, URu2Si2 and many other compounds, are found to have magnetic ordering constituted by high rank multipoles, e.g. quadruple, octople, etc. Due to the strong spin-orbit coupling, multipoles are automatically introduced to the systems when the total angular momentum quantum number J is larger than 1/2. If those multipoles are coupled by some exchange mechanisms, those multipoles could tend to have some ordering as conventional spin 1/2 Heisenberg problem. Except the multipolar ordering, many hidden order phenomena are believed closely related to the multipolar interactions (en)
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  • Se encuentra que materiales magnéticos con interacción espín-órbita fuerte, tales como: LaFeAsO,​ PrFe4P12​, YbRu2Ge2,​ UO2,​ NpO2,​ Ce1−xLaxB6,​ URu2Si2​ y muchos otros compuestos tienen un ordenamiento magnético constituido por multipolos de alto rango (cuádruple, óctuple, etc).​ Debido al fuerte acoplamiento espín-órbita, los multipolos se presentan automáticamente en sistemas donde el número cuántico de momento angular total, J, es mayor que 1/2. Si estos multipolos se acoplan por algún mecanismo de intercambio, estos multipolos pueden tender a tener un ordenamiento como el de un problema de Heisenberg convencional de espín 1/2. Además del ordenamiento multipolar, se cree que muchos otros fenómenos ocultos están estrechamente relacionados con las interacciones multipolares. (es)
  • Magnetic materials with strong spin-orbit interaction, such as: LaFeAsO, PrFe4P12, YbRu2Ge2, UO2, NpO2, Ce1−xLaxB6, URu2Si2 and many other compounds, are found to have magnetic ordering constituted by high rank multipoles, e.g. quadruple, octople, etc. Due to the strong spin-orbit coupling, multipoles are automatically introduced to the systems when the total angular momentum quantum number J is larger than 1/2. If those multipoles are coupled by some exchange mechanisms, those multipoles could tend to have some ordering as conventional spin 1/2 Heisenberg problem. Except the multipolar ordering, many hidden order phenomena are believed closely related to the multipolar interactions (en)
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  • Interacción de intercambio multipolar (es)
  • Multipolar exchange interaction (en)
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