Project supported by the National Natural Science Foundation of China(Grant Nos.51025101,51101095,and 11274214);the Program for Changjiang Scholars and Innovative Research Team in University,China(Grant No.IRT1156);the Specialized Research Fund for the Doctoral Program of Higher Education of China(Grant No.20121404130001);the Shanxi Province Foundations,China(Grant Nos.2011021021-1,[2012]10,and[2013]9)
Challenges and recent developments associated with writability issues in high-anisotropy perpendicular recording media are reviewed. The writing field is limited by the high coercivity caused by the high anisotropy. S...