Sato, T., Wang, Z., Takane, D., Souma, S., Cui, C., Li, Y., Nakayama, K., Kawakami, T., Kubota, Y., Cacho, C., Kim, T. K., Arab, A., Strocov, V. N., Yao, Y., & Takahashi, T. (2020). Signature of band inversion in the antiferromagnetic phase of axion insulator candidate EuIn2As2. Physical Review Research, 2(3), Article 033342. https://doi.org/10.1103/PhysRevResearch.2.033342
Sato, Takafumi ; Wang, Zhiwei ; Takane, Daichi et al. / Signature of band inversion in the antiferromagnetic phase of axion insulator candidate EuIn2As2. In: Physical Review Research. 2020 ; Vol. 2, No. 3.
@article{c0e23d87e3bb482ebbda7af2a766eec7,
title = "Signature of band inversion in the antiferromagnetic phase of axion insulator candidate EuIn2As2",
abstract = "We have performed angle-resolved photoemission spectroscopy on EuIn2As2 which is predicted to be an axion insulator in the antiferromagnetic state. By utilizing soft-X-ray and vacuum-ultraviolet photons, we revealed a three-dimensional hole pocket centered at the Γ point of the bulk Brillouin zone together with a heavily hole-doped surface state in the paramagnetic phase. Upon entering the antiferromagnetic phase, the band structure exhibits a marked reconstruction characterized by the emergence of an {"}M{"}-shaped bulk band near the Fermi level. The qualitative agreement with first-principles band-structure calculations suggests the occurrence of bulk-band inversion at the Γ point in the antiferromagnetic phase. We suggest that EuIn2As2 provides a good opportunity to study the exotic quantum phases associated with a possible axion-insulator phase.",
author = "Takafumi Sato and Zhiwei Wang and Daichi Takane and Seigo Souma and Chaoxi Cui and Yongkai Li and Kosuke Nakayama and Tappei Kawakami and Yuya Kubota and Cephise Cacho and Kim, {Timur K.} and Arian Arab and Strocov, {Vladimir N.} and Yugui Yao and Takashi Takahashi",
note = "Publisher Copyright: {\textcopyright} 2020 authors. Published by the American Physical Society.",
year = "2020",
month = sep,
doi = "10.1103/PhysRevResearch.2.033342",
language = "English",
volume = "2",
journal = "Physical Review Research",
issn = "2643-1564",
publisher = "American Physical Society",
number = "3",
}
Sato, T, Wang, Z, Takane, D, Souma, S, Cui, C, Li, Y, Nakayama, K, Kawakami, T, Kubota, Y, Cacho, C, Kim, TK, Arab, A, Strocov, VN, Yao, Y & Takahashi, T 2020, 'Signature of band inversion in the antiferromagnetic phase of axion insulator candidate EuIn2As2', Physical Review Research, vol. 2, no. 3, 033342. https://doi.org/10.1103/PhysRevResearch.2.033342
Signature of band inversion in the antiferromagnetic phase of axion insulator candidate EuIn2As2. / Sato, Takafumi
; Wang, Zhiwei; Takane, Daichi et al.
In:
Physical Review Research, Vol. 2, No. 3, 033342, 09.2020.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Signature of band inversion in the antiferromagnetic phase of axion insulator candidate EuIn2As2
AU - Sato, Takafumi
AU - Wang, Zhiwei
AU - Takane, Daichi
AU - Souma, Seigo
AU - Cui, Chaoxi
AU - Li, Yongkai
AU - Nakayama, Kosuke
AU - Kawakami, Tappei
AU - Kubota, Yuya
AU - Cacho, Cephise
AU - Kim, Timur K.
AU - Arab, Arian
AU - Strocov, Vladimir N.
AU - Yao, Yugui
AU - Takahashi, Takashi
N1 - Publisher Copyright:
© 2020 authors. Published by the American Physical Society.
PY - 2020/9
Y1 - 2020/9
N2 - We have performed angle-resolved photoemission spectroscopy on EuIn2As2 which is predicted to be an axion insulator in the antiferromagnetic state. By utilizing soft-X-ray and vacuum-ultraviolet photons, we revealed a three-dimensional hole pocket centered at the Γ point of the bulk Brillouin zone together with a heavily hole-doped surface state in the paramagnetic phase. Upon entering the antiferromagnetic phase, the band structure exhibits a marked reconstruction characterized by the emergence of an "M"-shaped bulk band near the Fermi level. The qualitative agreement with first-principles band-structure calculations suggests the occurrence of bulk-band inversion at the Γ point in the antiferromagnetic phase. We suggest that EuIn2As2 provides a good opportunity to study the exotic quantum phases associated with a possible axion-insulator phase.
AB - We have performed angle-resolved photoemission spectroscopy on EuIn2As2 which is predicted to be an axion insulator in the antiferromagnetic state. By utilizing soft-X-ray and vacuum-ultraviolet photons, we revealed a three-dimensional hole pocket centered at the Γ point of the bulk Brillouin zone together with a heavily hole-doped surface state in the paramagnetic phase. Upon entering the antiferromagnetic phase, the band structure exhibits a marked reconstruction characterized by the emergence of an "M"-shaped bulk band near the Fermi level. The qualitative agreement with first-principles band-structure calculations suggests the occurrence of bulk-band inversion at the Γ point in the antiferromagnetic phase. We suggest that EuIn2As2 provides a good opportunity to study the exotic quantum phases associated with a possible axion-insulator phase.
UR - http://www.scopus.com/inward/record.url?scp=85101799259&partnerID=8YFLogxK
U2 - 10.1103/PhysRevResearch.2.033342
DO - 10.1103/PhysRevResearch.2.033342
M3 - Article
AN - SCOPUS:85101799259
SN - 2643-1564
VL - 2
JO - Physical Review Research
JF - Physical Review Research
IS - 3
M1 - 033342
ER -
Sato T, Wang Z, Takane D, Souma S, Cui C, Li Y et al. Signature of band inversion in the antiferromagnetic phase of axion insulator candidate EuIn2As2. Physical Review Research. 2020 Sept;2(3):033342. doi: 10.1103/PhysRevResearch.2.033342
