Arai, Yosuke*; Kuroda, Kenta*; Nomoto, Takuya*; Tin, Z. H.*; Sakuragi, Shunsuke*; Bareille, C.*; Akebi, Shuntaro*; Kurokawa, Kifu*; Kinoshita, Yuto*; Zhang, W.-L.*; Shin, S.*; Tokunaga, Masashi*; Kitazawa, Hideaki*; Haga, Yoshinori 
; Suzuki, Hiroyuki*; Miyasaka, Shigeki*; Tajima, Setsuko*; Iwasa, Kazuaki*; Arita, Ryotaro*; Kondo, Takeshi*
Low-energy electronic structures of CeSb which shows multiple phase transitions known as devil's staircase were examined by combination of laser angle-resolved photoemission, Raman and neutron scattering spectroscopies. A new type of electron-boson coupling between the mobile electrons and quadrupole CEF-excitations of the 4f orbitals was found. The coupling is exceedingly strong and exhibits anomalous step-like enhancement during the devil's staircase transition, unveiling a new type of quasiparticle, named multipole polaron.
Language |
: | English |
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Volume |
: | 21 |
Number |
: | 4 |
Pages |
: | p.410 - 415 |
Publication Year/Month |
: | 2022/04 |
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Keywords |
: | Rare Earth Compounds; electron boson coupling; Photoemission Spectroscopy; Raman Spectroscopy; Neutron Scattering |
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Percentile:75.56 Category:Chemistry, Physical |
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