Fermi surface and mass enhancement in KFe2As2 from de Haas-van Alphen effect measurements

Taichi Terashima; Motoi Kimata; Nobuyuki Kurita; Hidetaka Satsukawa; Atsushi Harada; Kaori Hazama; Motoharu Imai; Akira Sato; Kunihiro Kihou; Chul Ho Lee; Hijiri Kito; Hiroshi Eisaki; Akira Iyo; Taku Saito; Hideto Fukazawa; Yoh Kohori; Hisatomo Harima; Shinya Uji

doi:10.1143/JPSJ.79.053702

Fermi surface and mass enhancement in KFe₂As₂ from de Haas-van Alphen effect measurements

Taichi Terashima, Motoi Kimata, Nobuyuki Kurita, Hidetaka Satsukawa, Atsushi Harada, Kaori Hazama, Motoharu Imai, Akira Sato, Kunihiro Kihou, Chul Ho Lee, Hijiri Kito, Hiroshi Eisaki, Akira Iyo, Taku Saito, Hideto Fukazawa, Yoh Kohori, Hisatomo Harima, Shinya Uji

Research output: Contribution to journal › Article › peer-review

88 Citations (Scopus)

Abstract

We report on a band structure calculation and de Haas-van Alphen measure ements of KFe₂As₂. Three cylindrical Fermi surfaces are found. Effective masses of electrons range from 6 to 18m_e, m _e being the free electron mass. Remarkable discrepancies between the calculated and observed Fermi surface areas and the large mass enhancement (≳3) highlight the importance of electronic correlations in determining the electronic structures of iron pnicitide superconductors.

Original language	English
Article number	053702
Journal	journal of the physical society of japan
Volume	79
Issue number	5
DOIs	https://doi.org/10.1143/JPSJ.79.053702
Publication status	Published - 2010 May
Externally published	Yes

Keywords

De haas-van Alphen effect
Fermi surface
Iron pnictide superconductors

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.79.053702

Cite this

Terashima, T., Kimata, M., Kurita, N., Satsukawa, H., Harada, A., Hazama, K., Imai, M., Sato, A., Kihou, K., Lee, C. H., Kito, H., Eisaki, H., Iyo, A., Saito, T., Fukazawa, H., Kohori, Y., Harima, H., & Uji, S. (2010). Fermi surface and mass enhancement in KFe₂As₂ from de Haas-van Alphen effect measurements. journal of the physical society of japan, 79(5), [053702]. https://doi.org/10.1143/JPSJ.79.053702

Terashima, T, Kimata, M, Kurita, N, Satsukawa, H, Harada, A, Hazama, K, Imai, M, Sato, A, Kihou, K, Lee, CH, Kito, H, Eisaki, H, Iyo, A, Saito, T, Fukazawa, H, Kohori, Y, Harima, H & Uji, S 2010, 'Fermi surface and mass enhancement in KFe₂As₂ from de Haas-van Alphen effect measurements', journal of the physical society of japan, vol. 79, no. 5, 053702. https://doi.org/10.1143/JPSJ.79.053702

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abstract = "We report on a band structure calculation and de Haas-van Alphen measure ements of KFe2As2. Three cylindrical Fermi surfaces are found. Effective masses of electrons range from 6 to 18me, m e being the free electron mass. Remarkable discrepancies between the calculated and observed Fermi surface areas and the large mass enhancement (≳3) highlight the importance of electronic correlations in determining the electronic structures of iron pnicitide superconductors.",

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AU - Kimata, Motoi

AU - Kurita, Nobuyuki

AU - Satsukawa, Hidetaka

AU - Harada, Atsushi

AU - Hazama, Kaori

AU - Imai, Motoharu

AU - Sato, Akira

AU - Kihou, Kunihiro

AU - Lee, Chul Ho

AU - Kito, Hijiri

AU - Eisaki, Hiroshi

AU - Iyo, Akira

AU - Saito, Taku

AU - Fukazawa, Hideto

AU - Kohori, Yoh

AU - Harima, Hisatomo

AU - Uji, Shinya

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