Document Type

Article

Publication Date

2-23-2012

Journal or Book Title

Physical Review B

Volume

85

Issue

8

First Page

085123

DOI

10.1103/PhysRevB.85.085123

Abstract

We demonstrate the existence of a charge-density-wave (CDW) associated with an incommensurate periodic lattice distortion on Ni2MnGa surface in the ferromagnetic state. Our temperature-dependent photoemission spectra provide compelling evidence of a pseudogap at the Fermi level for TCDW ⩽ 270 K that appears at the onset of the premartensite phase and persists in the martensite phase. While the width of the pseudogap is about 25 meV, a spectral weight transfer is observed over a much wider energy range that is associated with the CDW.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

Share

COinS