| Text | 6.1.4 Consequences of Symmetries - Kramer's Theorem\[ T = {{c2::\mathrm{i} e^{-\mathrm i \pi s_y} }} {{c1::K_0}} = {{c3::\sigma_y}} {{c1::K_0}}\] |
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| Text | 5 Symmetries of CrystalsSometimes it is useful to define a unit cell which is not primitive. This is known as a {{c1::conventional}} unit cell.Almost always they have {{c2::orthogonal axes::mathematical object}}. |
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| Text | 4.6 Bonding in Solids - Oxford Solid State BasicsWhat is special about {{c1::hydrogen::element}} is that when it forms a bond, the unbounded side of the proton left behind is a {{c2::naked positive charge::description + object}}, {{c3::unscreened by any electrons in core orbitals::elaboration for why naked}}.As a result, this positive charge is {{c4::particularly effective in being attracted to other clouds of electrons::sentence}}. |
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