scholarly journals Tunable electronic correlation effects in nanotube-light interactions

2015 ◽  
Vol 92 (20) ◽  
Author(s):  
Yuhei Miyauchi ◽  
Zhengyi Zhang ◽  
Mitsuhide Takekoshi ◽  
Yuh Tomio ◽  
Hidekatsu Suzuura ◽  
...  
Keyword(s):  
Electronic Correlation ◽  
Correlation Effects ◽  
Electronic Correlation Effects

scholarly journals Dynamic electronic correlation effects in NbO2 as compared to VO2

2017 ◽  
Vol 96 (19) ◽  
Author(s):  
W. H. Brito ◽  
M. C. O. Aguiar ◽  
K. Haule ◽  
G. Kotliar
Keyword(s):  
Electronic Correlation ◽  
Correlation Effects ◽  
Electronic Correlation Effects

Electronic correlation effects in Pb quantum wires on Si(557)

2020 ◽  
Vol 102 (3) ◽  
Author(s):  
M. Quentin ◽  
T. T. Nhung Nguyen ◽  
H. Pfnür ◽  
C. Tegenkamp
Keyword(s):  
Quantum Wires ◽  
Electronic Correlation ◽  
Correlation Effects ◽  
Electronic Correlation Effects

scholarly journals Reduced electronic correlation effects in half substituted Ba(Fe1−xCox)2As2

2018 ◽  
Vol 112 (23) ◽  
pp. 232602 ◽  
Author(s):  
Z.-H. Liu ◽  
A. N. Yaresko ◽  
Y. Li ◽  
D. V. Evtushinsky ◽  
P.-C. Dai ◽  
...  
Keyword(s):  
Electronic Correlation ◽  
Correlation Effects ◽  
Electronic Correlation Effects

Defects and Charging Processes in Li-Ion Battery Cathodes Studied by Operando Magnetometry and Positron Annihilation

2016 ◽  
Vol 879 ◽  
pp. 2125-2130
Author(s):  
Roland Würschum ◽  
Stefan Topolovec ◽  
Gregor Klinser ◽  
Wolfgang Sprengel ◽  
Harald Kren ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Positron Beam ◽  
Electronic Correlation ◽  
Li Ion Battery ◽  
Correlation Effects ◽  
Electronic Density ◽  
Li Ion ◽  
Set Up ◽  
First Time ◽  
Electronic Correlation Effects

A brief report is given on recent studies of the atomistic processes during charging of battery cathode material LixCoO2 by means of magnetometry and positron annihilation. A set-up for operando magnetometry is implemented which, for the first time, allowed to continuously monitor the distinct variation of the magnetic susceptibility χ of LixCoO2 which occurs during consecutive charging and discharging cycles. The variation of χ with Li+ content in the concentration range 1>x≥0.77 arises from a variation of the electronic density of states and from electronic correlation effects. The χ (x)-behaviour for x<0.77 shows that oxygen is involved in the charging process. Positron annihilation reveals vacancy-type defects on the Li-sublattice, the size of which increases with Li-extraction. Indication for Li-reordering at the reversibility limit of Li extraction is found which correlates with χ (x)-variations in this concentration regime. First measurements on LixCoO2 thin-films performed at the positron beam line NEPOMUC of FRM II at the Heinz Maier-Leibnitz neutron source will be presented.

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