| Literature DB >> 15904031 |
C S Tian1, D Qian, D Wu, R H He, Y Z Wu, W X Tang, L F Yin, Y S Shi, G S Dong, X F Jin, X M Jiang, F Q Liu, H J Qian, K Sun, L M Wang, G Rossi, Z Q Qiu, J Shi.
Abstract
The body-centered-cubic (bcc) phase of Ni, which does not exist in nature, has been achieved as a thin film on GaAs(001) at 170 K via molecular beam epitaxy. The bcc Ni is ferromagnetic with a Curie temperature of 456 K and possesses a magnetic moment of 0.52+/-0.08 micro(B)/atom. The cubic magnetocrystalline anisotropy of bcc Ni is determined to be +4.0x10(5) ergs x cm(-3), as opposed to -5.7x10(4) ergs x cm(-3) for the naturally occurring face-centered-cubic (fcc) Ni. This sharp contrast in the magnetic anisotropy is attributed to the different electronic band structures between bcc Ni and fcc Ni, which are determined using angle-resolved photoemission with synchrotron radiation.Year: 2005 PMID： 15904031 DOI： 10.1103/PhysRevLett.94.137210
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161