title: Body-centered-cubic Ni and its magnetic properties.
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.
authors.affiliation: Surface Physics Laboratory, Fudan University, Shanghai 200433, China.
authors.forename: C S
authors.initials: CS
authors.lastname: Tian
authors.forename: D
authors.initials: D
authors.lastname: Qian
authors.forename: D
authors.initials: D
authors.lastname: Wu
authors.forename: R H
authors.initials: RH
authors.lastname: He
authors.forename: Y Z
authors.initials: YZ
authors.lastname: Wu
authors.forename: W X
authors.initials: WX
authors.lastname: Tang
authors.forename: L F
authors.initials: LF
authors.lastname: Yin
authors.forename: Y S
authors.initials: YS
authors.lastname: Shi
authors.forename: G S
authors.initials: GS
authors.lastname: Dong
authors.forename: X F
authors.initials: XF
authors.lastname: Jin
authors.forename: X M
authors.initials: XM
authors.lastname: Jiang
authors.forename: F Q
authors.initials: FQ
authors.lastname: Liu
authors.forename: H J
authors.initials: HJ
authors.lastname: Qian
authors.forename: K
authors.initials: K
authors.lastname: Sun
authors.forename: L M
authors.initials: LM
authors.lastname: Wang
authors.forename: G
authors.initials: G
authors.lastname: Rossi
authors.forename: Z Q
authors.initials: ZQ
authors.lastname: Qiu
authors.forename: J
authors.initials: J
authors.lastname: Shi