TY - JOUR
T1 - Fermi surface geometry and inhomogeneous electronic states in Pr1.3-xLa0.7CexCuO4(x = 0.05) with small superconducting volume fraction
AU - Matsuzawa, Yu
AU - Morita, Tomohiro
AU - Arita, Masashi
AU - Giampietri, Alessio
AU - Kandyba, Viktor
AU - Barinov, Alexey
AU - Takahashi, Akira
AU - Nagakubo, Yusuke
AU - Adachi, Tadashi
AU - Koike, Yoji
AU - Fujimori, Atsushi
AU - Saini, Naurang L.
AU - Mizokawa, Takashi
N1 - Funding Information:
Acknowledgement The synchrotron radiation experiments have been done with the approval of Hiroshima Synchrotron Radiation Center (Proposal 17AG026). We thank the N-BARD, Hiroshima University for supplying the liquid helium. This work was partially supported by Grants-in-Aid from JSPS (JP19H01841, JP19H00659, JP19K03741, JP19K15291), CREST program from JST (JPMJCR15Q2), and “Program for Promoting Researches on the Supercomputer Fugaku” (Basic Science for Emergence and Functionality in Quantum Matter) from MEXT. N.L.S. was supported by joint research program of ZAIKEN, Waseda University (Project Number: 31010).
Funding Information:
The synchrotron radiation experiments have been done with the approval of Hiroshima Synchrotron Radiation Center (Proposal 17AG026). We thank the N-BARD, Hiroshima University for supplying the liquid helium. This work was partially supported by Grants-in-Aid from JSPS (JP19H01841, JP19H00659, JP19K03741, JP19K15291), CREST program from JST (JPMJCR15Q2), and "Program for Promoting Researches on the Supercomputer Fugaku" (Basic Science for Emergence and Functionality in Quantum Matter) from MEXT. N.L.S. was supported by joint research program of ZAIKEN, Waseda University (Project Number: 31010).
Publisher Copyright:
© 2021 The Physical Society of Japan.
PY - 2021/5/15
Y1 - 2021/5/15
N2 - We have investigated the electronic structure of protect annealed Pr1.3-xLa0.7CexCuO4 (x = 0.05) with small superconducting volume fraction by means of angle-resolved photoemission spectroscopy (ARPES) and scanning photoemission spectromicroscopy (SPEM). The ARPES result exhibits an electron pocket around the (0, π) point whose area is consistent with doping level of 0.09 electron per Cu. In addition, the hole band top around the (π/2, π/2) point is ∼15 meV below the Fermi level showing that the present system is dominated by the antiferromagnetic and nonsuperconducting state. The SPEM result indicates inhomogeneous electronic structure with a minority state which is less electron doped than the majority state. Under the relatively small Ce concentration of x = 0.05, the nonsuperconducting state is robust against protect annealing and is accompanied by the inhomogeneity.
AB - We have investigated the electronic structure of protect annealed Pr1.3-xLa0.7CexCuO4 (x = 0.05) with small superconducting volume fraction by means of angle-resolved photoemission spectroscopy (ARPES) and scanning photoemission spectromicroscopy (SPEM). The ARPES result exhibits an electron pocket around the (0, π) point whose area is consistent with doping level of 0.09 electron per Cu. In addition, the hole band top around the (π/2, π/2) point is ∼15 meV below the Fermi level showing that the present system is dominated by the antiferromagnetic and nonsuperconducting state. The SPEM result indicates inhomogeneous electronic structure with a minority state which is less electron doped than the majority state. Under the relatively small Ce concentration of x = 0.05, the nonsuperconducting state is robust against protect annealing and is accompanied by the inhomogeneity.
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U2 - 10.7566/JPSJ.90.054704
DO - 10.7566/JPSJ.90.054704
M3 - Article
AN - SCOPUS:85105223957
SN - 0031-9015
VL - 90
JO - journal of the physical society of japan
JF - journal of the physical society of japan
IS - 5
M1 - 054704
ER -