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.
Pascarelli S, Ruffoni MP, Trapananti A, Mathon O, Aquilanti G, Ostanin S, Staunton JB, Pettifer RF.Pascarelli S, et al. Among authors: pettifer rf.Phys Rev Lett. 2007 Dec 7;99(23):237204. doi: 10.1103/PhysRevLett.99.237204. Epub 2007 Dec 6.Phys Rev Lett. 2007.PMID: 18233406
Loeffen PW, Pettifer RF.Loeffen PW, et al. Among authors: pettifer rf.Phys Rev Lett. 1996 Jan 22;76(4):636-639. doi: 10.1103/PhysRevLett.76.636.Phys Rev Lett. 1996.PMID: 10061509No abstract available.