Photoemission and x-ray absorption of the electronic structure of multiferroic RMnO 3 (R=Y,Er)

J. S. Kang; S. W. Han; J. G. Park; S. C. Wi; S. S. Lee; G. Kim; H. J. Song; H. J. Shin; W. Jo; B. I. Min

doi:10.1103/PhysRevB.71.092405

Photoemission and x-ray absorption of the electronic structure of multiferroic RMnO ₃ (R=Y,Er)

J. S. Kang, S. W. Han, J. G. Park, S. C. Wi, S. S. Lee, G. Kim, H. J. Song, H. J. Shin, W. Jo, B. I. Min

Department of Physics

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43 Scopus citations

Abstract

Electronic structures of multiferroic RMnO ₃ (R=Y,Er) have been investigated by employing photoemission spectroscopy (PES) and x-ray absorption spectroscopy (XAS). We have found that Mn ions in RMnO ₃ are in the trivalent high-spin state with the total spin of S=2. The occupied Mn (d _xz-d _yz) states lie deep below E _F, while the occupied Mn (d _xy-d _x2-y2) states overlap very much with the O 2p states. It is observed that the PES spectral intensity of Mn 3d states is negligible above the occupied O 2p bands, suggesting that YMnO ₃ is likely to be a charge-transfer insulator. The Mn d _3z2-r2 state is mostly unoccupied in the ferroelectric phase of YMnO ₃.

Original language	English
Article number	092405
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	71
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.71.092405
State	Published - 1 Mar 2005

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title = "Photoemission and x-ray absorption of the electronic structure of multiferroic RMnO 3 (R=Y,Er)",

abstract = "Electronic structures of multiferroic RMnO 3 (R=Y,Er) have been investigated by employing photoemission spectroscopy (PES) and x-ray absorption spectroscopy (XAS). We have found that Mn ions in RMnO 3 are in the trivalent high-spin state with the total spin of S=2. The occupied Mn (d xz-d yz) states lie deep below E F, while the occupied Mn (d xy-d x2-y2) states overlap very much with the O 2p states. It is observed that the PES spectral intensity of Mn 3d states is negligible above the occupied O 2p bands, suggesting that YMnO 3 is likely to be a charge-transfer insulator. The Mn d 3z2-r2 state is mostly unoccupied in the ferroelectric phase of YMnO 3.",

author = "Kang, {J. S.} and Han, {S. W.} and Park, {J. G.} and Wi, {S. C.} and Lee, {S. S.} and G. Kim and Song, {H. J.} and Shin, {H. J.} and W. Jo and Min, {B. I.}",

year = "2005",

month = mar,

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doi = "10.1103/PhysRevB.71.092405",

language = "English",

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journal = "Physical Review B - Condensed Matter and Materials Physics",

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TY - JOUR

T1 - Photoemission and x-ray absorption of the electronic structure of multiferroic RMnO 3 (R=Y,Er)

AU - Kang, J. S.

AU - Han, S. W.

AU - Park, J. G.

AU - Wi, S. C.

AU - Lee, S. S.

AU - Kim, G.

AU - Song, H. J.

AU - Shin, H. J.

AU - Jo, W.

AU - Min, B. I.

PY - 2005/3/1

Y1 - 2005/3/1

N2 - Electronic structures of multiferroic RMnO 3 (R=Y,Er) have been investigated by employing photoemission spectroscopy (PES) and x-ray absorption spectroscopy (XAS). We have found that Mn ions in RMnO 3 are in the trivalent high-spin state with the total spin of S=2. The occupied Mn (d xz-d yz) states lie deep below E F, while the occupied Mn (d xy-d x2-y2) states overlap very much with the O 2p states. It is observed that the PES spectral intensity of Mn 3d states is negligible above the occupied O 2p bands, suggesting that YMnO 3 is likely to be a charge-transfer insulator. The Mn d 3z2-r2 state is mostly unoccupied in the ferroelectric phase of YMnO 3.

AB - Electronic structures of multiferroic RMnO 3 (R=Y,Er) have been investigated by employing photoemission spectroscopy (PES) and x-ray absorption spectroscopy (XAS). We have found that Mn ions in RMnO 3 are in the trivalent high-spin state with the total spin of S=2. The occupied Mn (d xz-d yz) states lie deep below E F, while the occupied Mn (d xy-d x2-y2) states overlap very much with the O 2p states. It is observed that the PES spectral intensity of Mn 3d states is negligible above the occupied O 2p bands, suggesting that YMnO 3 is likely to be a charge-transfer insulator. The Mn d 3z2-r2 state is mostly unoccupied in the ferroelectric phase of YMnO 3.

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U2 - 10.1103/PhysRevB.71.092405

DO - 10.1103/PhysRevB.71.092405

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SN - 1098-0121

VL - 71

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 9

M1 - 092405

ER -

Photoemission and x-ray absorption of the electronic structure of multiferroic RMnO 3 (R=Y,Er)

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Photoemission and x-ray absorption of the electronic structure of multiferroic RMnO ₃ (R=Y,Er)