Chin. Phys. Lett.  2016, Vol. 33 Issue (02): 027501    DOI: 10.1088/0256-307X/33/2/027501
Spin-Split Joint Density of States in GdN
Muhammad Azeem1,2**
1Department of Applied Physics, University of Sharjah, Sharjah 27272, United Arab Emirates
2MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Chemical and Physical Sciences, Victoria University, Wellington 6140, New Zealand
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Muhammad Azeem 2016 Chin. Phys. Lett. 33 027501
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Abstract We present an investigation of the optical constants of the near stoichiometric GdN films. Transmission and reflection spectra are collected for the paramagnetic and the ferromagnetic GdN in the photon energy range of 0.5–5.5 eV. In the ferromagnetic phase, behaviors of minority and majority spin states are specifically focussed on, which indicate spin-split joint density of states. The results confirm the LSDA+$U$ estimates of energy gap associated with the majority-spins and also the magnitude of spin splitting.
Received: 19 October 2015      Published: 26 February 2016
PACS:  75.25.-j (Spin arrangements in magnetically ordered materials (including neutron And spin-polarized electron studies, synchrotron-source x-ray scattering, etc.))  
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Muhammad Azeem
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