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Giant orbital diamagnetism of three-dimensional Dirac electrons in Sr3PbO antiperovskite

Research output: Contribution to journalArticlepeer-review

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Giant orbital diamagnetism of three-dimensional Dirac electrons in Sr3PbO antiperovskite. / Suetsugu, S.; Kitagawa, K.; Kariyado, T.; Rost, A. W.; Nuss, J.; Mühle, C.; Ogata, M.; Takagi, H.

In: Physical Review B, Vol. 103, No. 11, 115117, 10.03.2021.

Research output: Contribution to journalArticlepeer-review

Harvard

Suetsugu, S, Kitagawa, K, Kariyado, T, Rost, AW, Nuss, J, Mühle, C, Ogata, M & Takagi, H 2021, 'Giant orbital diamagnetism of three-dimensional Dirac electrons in Sr3PbO antiperovskite', Physical Review B, vol. 103, no. 11, 115117. https://doi.org/10.1103/PhysRevB.103.115117

APA

Suetsugu, S., Kitagawa, K., Kariyado, T., Rost, A. W., Nuss, J., Mühle, C., Ogata, M., & Takagi, H. (2021). Giant orbital diamagnetism of three-dimensional Dirac electrons in Sr3PbO antiperovskite. Physical Review B, 103(11), [115117]. https://doi.org/10.1103/PhysRevB.103.115117

Vancouver

Suetsugu S, Kitagawa K, Kariyado T, Rost AW, Nuss J, Mühle C et al. Giant orbital diamagnetism of three-dimensional Dirac electrons in Sr3PbO antiperovskite. Physical Review B. 2021 Mar 10;103(11). 115117. https://doi.org/10.1103/PhysRevB.103.115117

Author

Suetsugu, S. ; Kitagawa, K. ; Kariyado, T. ; Rost, A. W. ; Nuss, J. ; Mühle, C. ; Ogata, M. ; Takagi, H. / Giant orbital diamagnetism of three-dimensional Dirac electrons in Sr3PbO antiperovskite. In: Physical Review B. 2021 ; Vol. 103, No. 11.

Bibtex - Download

@article{a2f6974ac2544da19c36f795764ba6cd,
title = "Giant orbital diamagnetism of three-dimensional Dirac electrons in Sr3PbO antiperovskite",
abstract = "In Dirac semimetals, interband mixing has been known theoretically to give rise to a giant orbital diamagnetism when the Fermi level is close to the Dirac point. In Bi1−xSbx and other Dirac semimetals, an enhanced diamagnetism in the magnetic susceptibility χ has been observed and interpreted as a manifestation of such giant orbital diamagnetism. Experimentally proving their orbital origin, however, has remained challenging. The cubic antiperovskite Sr3PbO is a three-dimensional Dirac electron system and shows the giant diamagnetism in χ as in the other Dirac semimetals. 207Pb NMR measurements are conducted in this study to explore the microscopic origin of diamagnetism. From the analysis of the Knight shift K as a function of χ  and the relaxation rate T1–1 for samples with different hole densities, the spin and the orbital components in K are successfully separated. The results establish that the enhanced diamagnetism in Sr3PbO originates from the orbital contribution of Dirac electrons, which is fully consistent with the theory of giant orbital diamagnetism.",
author = "S. Suetsugu and K. Kitagawa and T. Kariyado and Rost, {A. W.} and J. Nuss and C. M{\"u}hle and M. Ogata and H. Takagi",
note = "This work was supported by Japan Society for the Promotion of Science (JSPS) KAKENHI (Grants No. 24224010, No. 15K13523, No. JP15H05852, No. JP15K21717,, No. 17H01140, No. 18H01162, and No. 17J05243), JSPS Core-to-Core Program (A) Advanced Research Networks, and the Alexander von Humboldt Foundation. S.S. acknowledges financial support by JSPS and the Materials Education program for the future leaders in Research, Industry, and Technology (MERIT). ",
year = "2021",
month = mar,
day = "10",
doi = "10.1103/PhysRevB.103.115117",
language = "English",
volume = "103",
journal = "Physical Review. B, Condensed matter and materials physics",
issn = "1098-0121",
publisher = "American Physical Society",
number = "11",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Giant orbital diamagnetism of three-dimensional Dirac electrons in Sr3PbO antiperovskite

AU - Suetsugu, S.

AU - Kitagawa, K.

AU - Kariyado, T.

AU - Rost, A. W.

AU - Nuss, J.

AU - Mühle, C.

AU - Ogata, M.

AU - Takagi, H.

N1 - This work was supported by Japan Society for the Promotion of Science (JSPS) KAKENHI (Grants No. 24224010, No. 15K13523, No. JP15H05852, No. JP15K21717,, No. 17H01140, No. 18H01162, and No. 17J05243), JSPS Core-to-Core Program (A) Advanced Research Networks, and the Alexander von Humboldt Foundation. S.S. acknowledges financial support by JSPS and the Materials Education program for the future leaders in Research, Industry, and Technology (MERIT).

PY - 2021/3/10

Y1 - 2021/3/10

N2 - In Dirac semimetals, interband mixing has been known theoretically to give rise to a giant orbital diamagnetism when the Fermi level is close to the Dirac point. In Bi1−xSbx and other Dirac semimetals, an enhanced diamagnetism in the magnetic susceptibility χ has been observed and interpreted as a manifestation of such giant orbital diamagnetism. Experimentally proving their orbital origin, however, has remained challenging. The cubic antiperovskite Sr3PbO is a three-dimensional Dirac electron system and shows the giant diamagnetism in χ as in the other Dirac semimetals. 207Pb NMR measurements are conducted in this study to explore the microscopic origin of diamagnetism. From the analysis of the Knight shift K as a function of χ  and the relaxation rate T1–1 for samples with different hole densities, the spin and the orbital components in K are successfully separated. The results establish that the enhanced diamagnetism in Sr3PbO originates from the orbital contribution of Dirac electrons, which is fully consistent with the theory of giant orbital diamagnetism.

AB - In Dirac semimetals, interband mixing has been known theoretically to give rise to a giant orbital diamagnetism when the Fermi level is close to the Dirac point. In Bi1−xSbx and other Dirac semimetals, an enhanced diamagnetism in the magnetic susceptibility χ has been observed and interpreted as a manifestation of such giant orbital diamagnetism. Experimentally proving their orbital origin, however, has remained challenging. The cubic antiperovskite Sr3PbO is a three-dimensional Dirac electron system and shows the giant diamagnetism in χ as in the other Dirac semimetals. 207Pb NMR measurements are conducted in this study to explore the microscopic origin of diamagnetism. From the analysis of the Knight shift K as a function of χ  and the relaxation rate T1–1 for samples with different hole densities, the spin and the orbital components in K are successfully separated. The results establish that the enhanced diamagnetism in Sr3PbO originates from the orbital contribution of Dirac electrons, which is fully consistent with the theory of giant orbital diamagnetism.

U2 - 10.1103/PhysRevB.103.115117

DO - 10.1103/PhysRevB.103.115117

M3 - Article

VL - 103

JO - Physical Review. B, Condensed matter and materials physics

JF - Physical Review. B, Condensed matter and materials physics

SN - 1098-0121

IS - 11

M1 - 115117

ER -

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