November 22, 2010
The New Energy and Industrial Technology Development Organization (NEDO) and Hitachi Ltd., in cooperation with Hitachi Global Storage Technologies (HitachiGST) have announced that they have jointly developed basic technologies for microwave magnetic recording, a technology originally proposed by Professor Jimmy Zhu from the Data Storage Systems Center (DSSC) at Carnegie Mellon. The technology has been suggested as a potential candidate for succeeding conventional perpendicular recording technology to continue the storage capacity increase that has occurred in past decades.
"In microwave assisted recording, a high-frequency magnetic field is applied to a microscopic region of a recording media in order to make the writing of magnetic information easy," the statement said. "NEDO and Hitachi Ltd. today announced the development of a magnetic head-mountable spin torque oscillator which can generate a high-frequency magnetic field. During testing of the new spin torque oscillator device, data writing of magnetic information on to recording media has been validated experimentally."
At the 55th Annual Conference on Magnetism and Magnetic Materials, held in Atlanta Nov. 14-18, Hitachi presented experimental research on MAMR technology and demonstrated the feasibility of the technology. It is expected that this successful demonstration will further elevate the MAMR R&D effort across the entire HDD industry. The DSSC and HitachiGST continue to work on an ongoing MAMR technology research project.
For more on the research, click here.