scholarly journals RKKY couplings in the Lieb lattice: Flat-band induced frustration

2021 ◽  
Vol 104 (15) ◽  
Author(s):  
G. Bouzerar
Keyword(s):  
Flat Band ◽  
Lieb Lattice

scholarly journals Geometric Origin of Superfluidity in the Lieb-Lattice Flat Band

2016 ◽  
Vol 117 (4) ◽  
Author(s):  
Aleksi Julku ◽  
Sebastiano Peotta ◽  
Tuomas I. Vanhala ◽  
Dong-Hee Kim ◽  
Päivi Törmä
Keyword(s):  
Flat Band ◽  
Geometric Origin ◽  
Lieb Lattice

scholarly journals Competition between the Soft Gap and the Molecular Kondo Singlets in Flat-band Lattices

2018 ◽  
Vol 28 (4) ◽  
pp. 361 ◽  
Author(s):  
Bo Duong Nguyen ◽  
Son Hong Nguyen ◽  
Tien Minh Tran
Keyword(s):  
Renormalization Group ◽  
Strong Coupling ◽  
Kondo Effect ◽  
Magnetic Impurity ◽  
Local Moment ◽  
Flat Band ◽  
Numerical Renormalization Group ◽  
Kondo Problem ◽  
Conduction Electrons ◽  
Lieb Lattice

The Kondo problem of a magnetic impurity embedded in the Lieb lattice is studied by the numerical renormalization group. The magnetic impurity hybridizes with conduction electrons from both the flat- and the soft-gap bands. We find a competition between the soft gap and the molecular Kondo singlet formations. The molecular Kondo effect occurs only when the magnetic impurity strongly hybridizes with conduction electrons at edge center sites of the Lieb lattice, and at the temperature range between the artificial strong coupling and the local moment regimes.

scholarly journals Observation of a Localized Flat-Band State in a Photonic Lieb Lattice

2015 ◽  
Vol 114 (24) ◽  
Author(s):  
Sebabrata Mukherjee ◽  
Alexander Spracklen ◽  
Debaditya Choudhury ◽  
Nathan Goldman ◽  
Patrik Öhberg ◽  
...  
Keyword(s):  
Flat Band ◽  
Band State ◽  
Lieb Lattice

scholarly journals Circuit quantum electrodynamics simulator of flat band physics in a Lieb lattice

2016 ◽  
Vol 93 (6) ◽  
Author(s):  
Zi-He Yang ◽  
Yan-Pu Wang ◽  
Zheng-Yuan Xue ◽  
Wan-Li Yang ◽  
Yong Hu ◽  
...  
Keyword(s):  
Quantum Electrodynamics ◽  
Flat Band ◽  
Circuit Quantum Electrodynamics ◽  
Lieb Lattice

scholarly journals Excitation of localized condensates in the flat band of the exciton-polariton Lieb lattice

2018 ◽  
Vol 98 (16) ◽  
Author(s):  
Meng Sun ◽  
I. G. Savenko ◽  
S. Flach ◽  
Y. G. Rubo
Keyword(s):  
Flat Band ◽  
Lieb Lattice

scholarly journals Observation of a nonradiative flat band for spoof surface plasmons in a metallic Lieb lattice

2016 ◽  
Vol 93 (7) ◽  
Author(s):  
Sho Kajiwara ◽  
Yoshiro Urade ◽  
Yosuke Nakata ◽  
Toshihiro Nakanishi ◽  
Masao Kitano
Keyword(s):  
Surface Plasmons ◽  
Flat Band ◽  
Lieb Lattice

scholarly journals Interaction-Driven Shift and Distortion of a Flat Band in an Optical Lieb Lattice

2017 ◽  
Vol 118 (17) ◽  
Author(s):  
Hideki Ozawa ◽  
Shintaro Taie ◽  
Tomohiro Ichinose ◽  
Yoshiro Takahashi
Keyword(s):  
Flat Band ◽  
Lieb Lattice
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