@article{CTT100672152,
  author = {Y. Takeda and M. Kobayashi and T. Okane and T. Ohkochi and J. Okamoto and Y. Saitoh and K. Kobayashi and H. Yamagami and A. Fujimori and A. Tanaka and J. Okabayashi and M. Oshima and S. Ohya and P. N. Hai and M. Tanaka},
  title = {Nature of Magnetic Coupling between Mn Ions in As-Grown Ga1-xMnxAs Studied by X-Ray Magnetic Circular Dichroism},
  journal = {PHYSICAL REVIEW LETTERS},
  year = 2008,
}