An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Sheikh JA, Rowley N, Nagarajan MA, Price HG.Sheikh JA, et al. Among authors: nagarajan ma.Phys Rev Lett. 1990 Jan 22;64(4):376-379. doi: 10.1103/PhysRevLett.64.376.Phys Rev Lett. 1990.PMID: 10041964No abstract available.