Para- to ferromagnetic phase transition of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">CoS</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>studied by high-resolution photoemission spectroscopy

Takahashi, Takashi; Naitoh, Y.; Sato, Takafumi; Kamiyama, Takashi; Yamada, Kōsaku; Hiraka, Haruhiro; Endoh, Y.; Usuda, Manabu; Hamada, Nobuyuki

doi:10.1103/physrevb.63.094415

Cited by 30 publications

(21 citation statements)

References 21 publications

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“…The bulk 3d e g bands are located around −0.3 eV binding energy and, therefore, the experimental splitting between the bulk 3d e g bands and 3d t 2g bands amounts to 0.5 eV. Although generally consistent with theory [1,2] and previous work [41], these band placements are compromised by the strong surface weight of the bands observed here in photoemission.…”

Section: The Surface Band Structuresupporting

confidence: 83%

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The minority spin surface bands of CoS₂(001)

Sabirianov

Mei

et al. 2009

J. Phys.: Condens. Matter

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Lozova, N.; Manno, M.; Leighton, C.; and Dowben, Peter A., "The minority spin surface bands of CoS 2 (001)" (2009 Abstract Angle-resolved photoemission was used to study the surface electronic band structure of high quality single crystals of ferromagnetic CoS 2 (below 120 K). Strongly dispersing Co t 2g bands are identified along the 100 k direction, the¯ -X line of the surface Brillouin zone, in agreement with model calculations. The calculated surface band structure includes corrections for the previously determined surface structure of CoS 2 (001) and is in general agreement with the experimental photoemission spectra in the region of the Fermi level. There is evidence of the existence of several minority spin surface states, falling into a gap of the projected minority spin bulk CoS 2 (001) band structure.

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Section: The Surface Band Structuresupporting

confidence: 83%

“…The photoemission data of Takahashi and co-workers [41] also showed that the Co 3d band can be resolved into • to +16…”

Section: The Surface Band Structurementioning

confidence: 89%

The minority spin surface bands of CoS₂(001)

Sabirianov

Mei

et al. 2009

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

show abstract

“…The photoemission data of Takahashi and co-workers [41] also showed that the Co 3d band can be resolved into two subbands, in the vicinity of −1 eV binding energy (E − E F ) and the Fermi level. The bulk 3d e g bands are located around −0.3 eV binding energy and, therefore, the experimental splitting between the bulk 3d e g bands and 3d t 2g bands amounts to 0.5 eV.…”

Section: The Surface Band Structurementioning

confidence: 90%

Copper Diffusion Behavior in SiO₂/Si Structure During 400°C Annealing

Hozawa¹,

Yugami²

2004

Jpn. J. Appl. Phys.

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Angle-resolved photoemission was used to study the surface electronic band structure of high quality single crystals of ferromagnetic CoS 2 (below 120 K). Strongly dispersing Co t 2g bands are identified along the 100 k direction, the¯ -X line of the surface Brillouin zone, in agreement with model calculations. The calculated surface band structure includes corrections for the previously determined surface structure of CoS 2 (001) and is in general agreement with the experimental photoemission spectra in the region of the Fermi level. There is evidence of the existence of several minority spin surface states, falling into a gap of the projected minority spin bulk CoS 2 (001) band structure.

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“…The photoemission data of Takahashi and coworkers [23] also showed that the Co 3d band can be resolved into two subbands in the vicinity of 1 eV binding energy and at the Fermi level. Because of the changing cross-section with photon energy, at high photon energies near 40 eV and above, two additional bands can be observed in the region of 3 and 9.5 eV binding energies.…”

Section: The Cos 2 Bulk Band Structurementioning

confidence: 94%

“…(2) The photoemission measurements of [23] do not show any changes across the Curie temperature in the region attributed to the Co t 2g band. If the exchange splitting changed appreciably with temperature, the width of the Co t 2g band would change noticeably.…”

Section: Theorymentioning

confidence: 99%

The electronic band structure of CoS₂

Wu¹,

Losovyj²,

Wisbey³

et al. 2007

J. Phys.: Condens. Matter

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Manno, M.; Wang, L.; Leighton, C.; and Dowben, Peter A., "The electronic band structure of CoS 2 " (2007 AbstractAngle-resolved and energy-dependent photoemission was used to study the band structure of paramagnetic CoS 2 from high-quality single-crystal samples. A strongly dispersing hybridized Co-S band is identifi ed along the Γ-X line. Fermi level crossings are also analyzed along this line, and the results are interpreted using band structure calculations. The Fermi level crossings are very sensitive to the separation in the S-S dimer, and it is suggested that the half-metallic gap in CoS 2 may be controlled by the bondingantibonding splitting in this dimer, rather than by exchange splitting on the Co atoms.

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Para- to ferromagnetic phase transition ofCoS2studied by high-resolution photoemission spectroscopy

Cited by 30 publications

References 21 publications

The minority spin surface bands of CoS₂(001)

The minority spin surface bands of CoS₂(001)

Copper Diffusion Behavior in SiO₂/Si Structure During 400°C Annealing

The electronic band structure of CoS₂

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Para- to ferromagnetic phase transition ofCoS2studied by high-resolution photoemission spectroscopy

Cited by 30 publications

References 21 publications

The minority spin surface bands of CoS2(001)

The minority spin surface bands of CoS2(001)

Copper Diffusion Behavior in SiO2/Si Structure During 400°C Annealing

The electronic band structure of CoS2

Contact Info

Product

Resources

About

The minority spin surface bands of CoS₂(001)

The minority spin surface bands of CoS₂(001)

Copper Diffusion Behavior in SiO₂/Si Structure During 400°C Annealing

The electronic band structure of CoS₂