@article{3059409,
    title = "Origin of low-temperature magnetic ordering in Ga 1-xMn xN",
    author = "Sawicki, M. and Devillers, T. and Gałȩski, S. and Simserides, C. and Dobkowska, S. and Faina, B. and Grois, A. and Navarro-Quezada, A. and Trohidou, K.N. and Majewski, J.A. and Dietl, T. and Bonanni, A.",
    journal = "PHYSICAL REVIEW B : CONDENSED MATTER AND MATERIALS PHYSICS",
    year = "2012",
    volume = "85",
    number = "20",
    issn = "1098-0121",
    doi = "10.1103/PhysRevB.85.205204",
    abstract = "By using highly sensitive millikelvin superconducting quantum interference device magnetometry, the magnitude of the Curie temperature as a function of the Mn concentration x is determined for thoroughly characterized Ga 1-xMn xN. The interpretation of the results in the frame of tight-binding theory and of Monte Carlo simulations allows us to assign the spin interaction to ferromagnetic superexchange and to point out the limited accuracy of state-of-the-art ab initio methods in predicting the magnetic characteristics of dilute magnetic insulators. © 2012 American Physical Society."
}