Angle-resolved photoemission from Cr(110): Observation of a bulk magnetic phase transition

Y. Sakisaka; T. Komeda; M. Onchi; H. Kato; S. Suzuki; K. Edamoto; Y. Aiura

doi:10.1103/PhysRevB.38.1131

Angle-resolved photoemission from Cr(110): Observation of a bulk magnetic phase transition

Y. Sakisaka, T. Komeda, M. Onchi, H. Kato, S. Suzuki, K. Edamoto, Y. Aiura

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

18 Citations (Scopus)

Abstract

Normal-emission photoelectron spectra were recorded from Cr(110) at 80 K (below the Néel temperature of TN=312 K) with photon energies from 20 to 120 eV. Assuming a free-electron final band, bulk energy-band dispersions along the [110] (M) direction normal to the surface are determined. The results are compared with previously calculated band structures for the antiferromagnetic phase. Contrary to earlier claims, we find no evidence for a valence-band satellite in Cr. Temperature-dependent studies were also presented that reveal the disappearance of an emission from the 3 initial-state band (corresponding to the G3 band in the paramagnetic phase) at temperatures above TN for a specific k region. This result is discussed in terms of the bulk magnetic phase transition.

Original language	English
Pages (from-to)	1131-1138
Number of pages	8
Journal	Physical Review B
Volume	38
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.38.1131
Publication status	Published - 1988 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

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title = "Angle-resolved photoemission from Cr(110): Observation of a bulk magnetic phase transition",

abstract = "Normal-emission photoelectron spectra were recorded from Cr(110) at 80 K (below the N{\'e}el temperature of TN=312 K) with photon energies from 20 to 120 eV. Assuming a free-electron final band, bulk energy-band dispersions along the [110] (M) direction normal to the surface are determined. The results are compared with previously calculated band structures for the antiferromagnetic phase. Contrary to earlier claims, we find no evidence for a valence-band satellite in Cr. Temperature-dependent studies were also presented that reveal the disappearance of an emission from the 3 initial-state band (corresponding to the G3 band in the paramagnetic phase) at temperatures above TN for a specific k region. This result is discussed in terms of the bulk magnetic phase transition.",

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T2 - Observation of a bulk magnetic phase transition

AU - Sakisaka, Y.

AU - Komeda, T.

AU - Onchi, M.

AU - Kato, H.

AU - Suzuki, S.

AU - Edamoto, K.

AU - Aiura, Y.

PY - 1988/1/1

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N2 - Normal-emission photoelectron spectra were recorded from Cr(110) at 80 K (below the Néel temperature of TN=312 K) with photon energies from 20 to 120 eV. Assuming a free-electron final band, bulk energy-band dispersions along the [110] (M) direction normal to the surface are determined. The results are compared with previously calculated band structures for the antiferromagnetic phase. Contrary to earlier claims, we find no evidence for a valence-band satellite in Cr. Temperature-dependent studies were also presented that reveal the disappearance of an emission from the 3 initial-state band (corresponding to the G3 band in the paramagnetic phase) at temperatures above TN for a specific k region. This result is discussed in terms of the bulk magnetic phase transition.

AB - Normal-emission photoelectron spectra were recorded from Cr(110) at 80 K (below the Néel temperature of TN=312 K) with photon energies from 20 to 120 eV. Assuming a free-electron final band, bulk energy-band dispersions along the [110] (M) direction normal to the surface are determined. The results are compared with previously calculated band structures for the antiferromagnetic phase. Contrary to earlier claims, we find no evidence for a valence-band satellite in Cr. Temperature-dependent studies were also presented that reveal the disappearance of an emission from the 3 initial-state band (corresponding to the G3 band in the paramagnetic phase) at temperatures above TN for a specific k region. This result is discussed in terms of the bulk magnetic phase transition.

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