Electronic structure of MnSi: The role of electron-electron interactions

F. Carbone; M. Zangrando; Alexander Brinkman; A. Nicolaou; F. Bondino; E. Magnano; A.A. Nugroho; F. Parmigiani; Th. Jarlborg; D. van der Marel

doi:10.1103/PhysRevB.73.085114

Electronic structure of MnSi: The role of electron-electron interactions

F. Carbone, M. Zangrando, Alexander Brinkman, A. Nicolaou, F. Bondino, E. Magnano, A.A. Nugroho, F. Parmigiani, Th. Jarlborg, D. van der Marel

Faculty of Science and Technology

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

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Abstract

We present an experimental study of the electronic structure of MnSi. Using x-ray absorption spectroscopy (XAS), x-ray photoemission, and x-ray fluorescence, we provide experimental evidence that MnSi has a mixed valence ground state. We show that self-consistent local density approximation supercell calculations cannot replicate the XAS spectra of MnSi, while a good match is achieved within the atomic multiplet theory assuming a mixed valence ground state. We discuss the role of the electron-electron interactions in this compound and estimate that the valence fluctuations are suppressed by a factor of 2.5, which means that the Coulomb repulsion is not negligible

Original language	English
Pages (from-to)	085114-
Journal	Physical review B: Condensed matter and materials physics
Volume	73
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevB.73.085114
Publication status	Published - 2006

Keywords

IR-74260
METIS-233371

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10.1103/PhysRevB.73.085114

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title = "Electronic structure of MnSi: The role of electron-electron interactions",

abstract = "We present an experimental study of the electronic structure of MnSi. Using x-ray absorption spectroscopy (XAS), x-ray photoemission, and x-ray fluorescence, we provide experimental evidence that MnSi has a mixed valence ground state. We show that self-consistent local density approximation supercell calculations cannot replicate the XAS spectra of MnSi, while a good match is achieved within the atomic multiplet theory assuming a mixed valence ground state. We discuss the role of the electron-electron interactions in this compound and estimate that the valence fluctuations are suppressed by a factor of 2.5, which means that the Coulomb repulsion is not negligible",

keywords = "IR-74260, METIS-233371",

author = "F. Carbone and M. Zangrando and Alexander Brinkman and A. Nicolaou and F. Bondino and E. Magnano and A.A. Nugroho and F. Parmigiani and Th. Jarlborg and {van der Marel}, D.",

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T1 - Electronic structure of MnSi: The role of electron-electron interactions

AU - Carbone, F.

AU - Zangrando, M.

AU - Brinkman, Alexander

AU - Nicolaou, A.

AU - Bondino, F.

AU - Magnano, E.

AU - Nugroho, A.A.

AU - Parmigiani, F.

AU - Jarlborg, Th.

AU - van der Marel, D.

PY - 2006

Y1 - 2006

N2 - We present an experimental study of the electronic structure of MnSi. Using x-ray absorption spectroscopy (XAS), x-ray photoemission, and x-ray fluorescence, we provide experimental evidence that MnSi has a mixed valence ground state. We show that self-consistent local density approximation supercell calculations cannot replicate the XAS spectra of MnSi, while a good match is achieved within the atomic multiplet theory assuming a mixed valence ground state. We discuss the role of the electron-electron interactions in this compound and estimate that the valence fluctuations are suppressed by a factor of 2.5, which means that the Coulomb repulsion is not negligible

AB - We present an experimental study of the electronic structure of MnSi. Using x-ray absorption spectroscopy (XAS), x-ray photoemission, and x-ray fluorescence, we provide experimental evidence that MnSi has a mixed valence ground state. We show that self-consistent local density approximation supercell calculations cannot replicate the XAS spectra of MnSi, while a good match is achieved within the atomic multiplet theory assuming a mixed valence ground state. We discuss the role of the electron-electron interactions in this compound and estimate that the valence fluctuations are suppressed by a factor of 2.5, which means that the Coulomb repulsion is not negligible

KW - IR-74260

KW - METIS-233371

U2 - 10.1103/PhysRevB.73.085114

DO - 10.1103/PhysRevB.73.085114

M3 - Article

SN - 1098-0121

VL - 73

SP - 085114-

JO - Physical review B: Condensed matter and materials physics

JF - Physical review B: Condensed matter and materials physics

IS - 8

ER -

Electronic structure of MnSi: The role of electron-electron interactions

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