Abstract
We investigate the variation of charge dynamics upon the metal-insulator transition for perovskite SrIr1−xSnxO3 by employing the optical spectroscopy. The Dirac semimetal of SrIrO3 turns into the antiferromagnetic insulator with a gap of 0.1 eV by the Sn-substitution, accompanying the reconstruction of electronic structure on an energy scale of 1 eV. The spectral intensity of optical excitation between Jeff = 1=2-orbitals is significantly reduced with increasing x, while that between the Jeff = 3=2- and 1=2-orbital shows merely moderate x-dependence. We anticipate that the substituted Sn significantly renormalizes the effective bandwidth of Jeff = 1=2-orbital while modestly changing the Jeff = 3=2-orbital.
| Original language | English |
|---|---|
| Article number | 123706 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 87 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2018 Jan 1 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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Charge dynamics and metal-insulator transition in perovskite SrIr1−xSnxO3 . / Fujioka, Jun; Okawa, Tatsuya; Masuko, Makoto; Yamamoto, Ayako; Tokura, Yoshinori.
In: Journal of the Physical Society of Japan, Vol. 87, No. 12, 123706, 01.01.2018.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Charge dynamics and metal-insulator transition in perovskite SrIr1−xSnxO3
AU - Fujioka, Jun
AU - Okawa, Tatsuya
AU - Masuko, Makoto
AU - Yamamoto, Ayako
AU - Tokura, Yoshinori
PY - 2018/1/1
Y1 - 2018/1/1
N2 - We investigate the variation of charge dynamics upon the metal-insulator transition for perovskite SrIr1−xSnxO3 by employing the optical spectroscopy. The Dirac semimetal of SrIrO3 turns into the antiferromagnetic insulator with a gap of 0.1 eV by the Sn-substitution, accompanying the reconstruction of electronic structure on an energy scale of 1 eV. The spectral intensity of optical excitation between Jeff = 1=2-orbitals is significantly reduced with increasing x, while that between the Jeff = 3=2- and 1=2-orbital shows merely moderate x-dependence. We anticipate that the substituted Sn significantly renormalizes the effective bandwidth of Jeff = 1=2-orbital while modestly changing the Jeff = 3=2-orbital.
AB - We investigate the variation of charge dynamics upon the metal-insulator transition for perovskite SrIr1−xSnxO3 by employing the optical spectroscopy. The Dirac semimetal of SrIrO3 turns into the antiferromagnetic insulator with a gap of 0.1 eV by the Sn-substitution, accompanying the reconstruction of electronic structure on an energy scale of 1 eV. The spectral intensity of optical excitation between Jeff = 1=2-orbitals is significantly reduced with increasing x, while that between the Jeff = 3=2- and 1=2-orbital shows merely moderate x-dependence. We anticipate that the substituted Sn significantly renormalizes the effective bandwidth of Jeff = 1=2-orbital while modestly changing the Jeff = 3=2-orbital.
UR - http://www.scopus.com/inward/record.url?scp=85057625649&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85057625649&partnerID=8YFLogxK
U2 - 10.7566/JPSJ.87.123706
DO - 10.7566/JPSJ.87.123706
M3 - Article
AN - SCOPUS:85057625649
VL - 87
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 12
M1 - 123706
ER -