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Quantum-mechanical Studies of Quasi-One-Dimensional Electron Systems
Abstract
https://yadi.sk/i/xDLe07W7j7qUr
This review is devoted to the basic problem in quantum theory of quasi-one-dimensional electron systems like polyenes and cumulenes β physical origin of their forbidden zone due to two possible effects β Peierls instability (bond alternation) and Mott instability (electron correlation). Both possible contradiction and coexistence of the Mott and Peierls instabilities are discussed on the basis of the Kiev quantum chemistry team research projects.
Π£ ΠΌΠ΅ΡΠΎΠ΄ΠΈΡΠ½ΡΠΉ ΠΎΠ³Π»ΡΠ΄ΠΎΠ²ΡΠΉ ΡΡΠ°ΡΡΡ, ΡΠΎΠ·ΡΠ°Ρ
ΠΎΠ²Π°Π½ΡΠΉ Π½Π° Π½Π°ΡΠΊΠΎΠ²ΡΡΠ², Π²ΠΈΠΊΠ»Π°Π΄Π°ΡΡΠ² ΡΠ° ΡΡΡΠ΄Π΅Π½ΡΡΠ² Π²ΠΈΡΠΎΡ ΡΠΊΠΎΠ»ΠΈ, ΠΏΡΠΎΠ°Π½Π°Π»ΡΠ·ΠΎΠ²Π°Π½ΠΎ ΡΠ²ΠΈΡΠ΅ ΠΊΡΠ»ΠΎΠ½ΡΠ²ΡΡΠΊΠΎΡ Π±Π»ΠΎΠΊΠ°Π΄ΠΈ Π² ΠΎΠ΄Π½ΠΎΠ΅Π»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠΌΡ ΡΡΠ°Π½Π·ΠΈΡΡΠΎΡΡ Π½Π° ΠΎΠ΄Π½ΡΠΉ ΠΌΠΎΠ»Π΅ΠΊΡΠ»Ρ Π· ΠΏΠΎΠ·ΠΈΡΡΠΉ Π΄Π²ΠΎΡ
ΡΡΠ·Π½ΠΈΡ
ΠΏΡΠ΄Ρ
ΠΎΠ΄ΡΠ²: Π² ΠΊΠΎΠ½ΡΠ΅ΠΏΡΡΡ Β«Π·Π½ΠΈΠ·Ρ β Π²Π³ΠΎΡΡΒ» Π½Π°Π½ΠΎΠ΅Π»Π΅ΠΊΡΡΠΎΠ½ΡΠΊΠΈ Ρ, Π΄Π»Ρ ΠΏΠΎΡΡΠ²Π½ΡΠ½Π½Ρ, Π² ΡΡΠ°Π΄ΠΈΡΡΠΉΠ½ΡΠΉ ΠΊΠΎΠ½ΡΠ΅ΠΏΡΡΡ Β«Π·Π³ΠΎΡΠΈ β Π²Π½ΠΈΠ·Β» Π· Π·Π°ΡΡΠΎΡΡΠ²Π°Π½Π½ΡΠΌ ΠΌΠ°ΠΊΡΠΎΡΠΊΠΎΠΏΡΡΠ½ΠΈΡ
Π²Π»Π°ΡΡΠΈΠ²ΠΎΡΡΠ΅ΠΉ Ρ ΠΏΠΎΠ½ΡΡΡ, ΡΠΊ-ΠΎΡ ΡΠΌΠ½ΡΡΡΡ ΠΏΡΠΎΠ²ΡΠ΄Π½ΠΎΠ³ΠΎ ΠΊΠ°Π½Π°Π»Ρ ΡΠΎΡΠΎ. Π ΡΠ°ΠΌΠΊΠ°Ρ
ΠΏΠΎΠ±ΡΠ΄ΠΎΠ²Π°Π½ΠΎΡ Π΅Π»Π΅ΠΌΠ΅Π½ΡΠ°ΡΠ½ΠΎΡ ΡΠ΅ΠΎΡΡΡ ΠΎΠ΄Π½ΠΎΠ΅Π»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠ³ΠΎ ΡΡΠ°Π½Π·ΠΈΡΡΠΎΡΠ° ΠΌΠΈ ΠΎΡΡΠΈΠΌΠ°Π»ΠΈ ΡΠΈΡΠ΅Π»ΡΠ½Ρ ΠΎΡΡΠ½ΠΊΠΈ Π΄Π»Ρ ΠΌΠ΅ΠΆ Π½Π°ΠΏΡΡΠ³, Ρ ΡΠΊΠΈΡ
ΠΌΠΎΠΆΠ»ΠΈΠ²Π΅ ΠΏΠ΅ΡΠ΅Π½Π΅ΡΠ΅Π½Π½Ρ ΡΡΡΡΠΌΡ Π· Π²ΠΈΡΠΎΠΊΡ Π½Π° ΡΡΡΠΊ, Π° ΡΠ°ΠΊΠΎΠΆ ΡΠΌΠΎΠ² Ρ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡΠ², Π·Π° ΡΠΊΠΈΡ
ΠΌΠΎΠΆΠ»ΠΈΠ²Π΅ Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½Π΅ ΡΠΏΠΎΡΡΠ΅ΡΠ΅ΠΆΠ΅Π½Π½Ρ ΡΠ²ΠΈΡΠ° Β«ΠΊΡΠ»ΠΎΠ½ΡΠ²ΡΡΠΊΠΎΡ Π±Π»ΠΎΠΊΠ°Π΄ΠΈΒ», ΠΊΠΎΠ»ΠΈ ΡΡΡΡΠΌ Π½Π΅ ΠΏΡΠΎΡΡΠΊΠ°Ρ Π·Π° Π½Π΅Π½ΡΠ»ΡΠΎΠ²ΠΎΡ Π½Π°ΠΏΡΡΠ³ΠΈ ΠΌΡΠΆ Π²ΠΈΡΠΎΠΊΠΎΠΌ Ρ ΡΡΠΎΠΊΠΎΠΌ.
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