Title of article
Energy gap of the spin density wave at the Cr(110) surface
Author/Authors
Schنfer، نويسنده , , J. and Rotenberg، نويسنده , , Eli and Kevan، نويسنده , , S.D. and Blaha، نويسنده , , P.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2000
Pages
6
From page
885
To page
890
Abstract
Angle resolved photoemission is used to directly monitor the energy gap of the spin density wave of Cr at a (110) surface. Density functional calculations, including a Fermi surface contour, predict an energy gap in the surface proximity. Surface states are identified, and a near-surface gap of ∼200 meV at room temperature is found, using spectroscopy, extending above the Fermi level. The gap exhibits an increased critical temperature of ∼440 K and extends isotropically around the Γ point.
Keywords
Chromium , Phase transitions , Photoelectron spectroscopy , Magnetic phenomena (cyclotron resonance , Density functional calculations , Magnetic surfaces , etc.)
Journal title
Surface Science
Serial Year
2000
Journal title
Surface Science
Record number
1688492
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