Journal or Book Title
Physical Review B
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.
American Physical Society
D'Souza, S. W.; Rai, Abhishek; Nayak, J.; Maniraj, M.; Dhaka, R. S.; Barman, S. R.; Schlagel, Deborah L.; Lograsso, Thomas A.; and Chakrabarti, Aparna, "Coexistence of charge-density wave and ferromagnetism in Ni2MnGa" (2012). Ames Laboratory Publications. 32.