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Crystal structure resolution of an insulator due to the cooperative Jahn-Teller effect through Bader's theory : The challenging case of cobaltite oxide Y114. / Tantardini, Christian; Benassi, Enrico.
в: Dalton Transactions, Том 47, № 15, 12.03.2018, стр. 5483-5491.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Crystal structure resolution of an insulator due to the cooperative Jahn-Teller effect through Bader's theory
T2 - The challenging case of cobaltite oxide Y114
AU - Tantardini, Christian
AU - Benassi, Enrico
N1 - Publisher Copyright: © 2018 The Royal Society of Chemistry.
PY - 2018/3/12
Y1 - 2018/3/12
N2 - Cobaltite YBaCo4O7, abbreviated as Y114, is one of the most thoroughly investigated perovskites, owing largely to its interesting magnetic properties. Y114 is an insulator as a result of the cooperative Jahn-Teller effect, where one electron jumps quickly from one cobalt site to another, making it impossible to experimentally assign the correct oxidation state for each of the two cobalt sites. The present study solved the ambiguity by means of state-of-the-art DFT calculations. The two cobalt sites were differentiated through an analysis of charge density within the framework of the quantum theory of atoms in molecules.
AB - Cobaltite YBaCo4O7, abbreviated as Y114, is one of the most thoroughly investigated perovskites, owing largely to its interesting magnetic properties. Y114 is an insulator as a result of the cooperative Jahn-Teller effect, where one electron jumps quickly from one cobalt site to another, making it impossible to experimentally assign the correct oxidation state for each of the two cobalt sites. The present study solved the ambiguity by means of state-of-the-art DFT calculations. The two cobalt sites were differentiated through an analysis of charge density within the framework of the quantum theory of atoms in molecules.
KW - ELECTRON-DENSITY
KW - GIANT MAGNETORESISTANCE
KW - CHARGE-DENSITY
KW - COMPLEX
KW - TRANSITION
KW - STABILITY
KW - 4F
KW - CONFIGURATION
KW - SUBSTITUTION
KW - DISTORTIONS
UR - http://www.scopus.com/inward/record.url?scp=85045524093&partnerID=8YFLogxK
U2 - 10.1039/c8dt00073e
DO - 10.1039/c8dt00073e
M3 - Article
C2 - 29611571
AN - SCOPUS:85045524093
VL - 47
SP - 5483
EP - 5491
JO - Dalton Transactions
JF - Dalton Transactions
SN - 1477-9226
IS - 15
ER -
ID: 12670477