Shuang-Yi Liu et al 2009 J. Phys. D: Appl. Phys. 42 215002 doi:10.1088/0022-3727/42/21/215002
Shuang-Yi Liu, Ai-Kah Soh and Liang Hong
Show affiliationsLateral surface induced effects on cylindrical amorphous Co nanowires have been studied using the Monte Carlo method. The simulation results show that lateral surface induced uniaxial anisotropy has a strong influence on the magnetization of nanowires with diameters smaller than 5 nm when its value exceeds 5.0 × 105 erg cm−3. It has been found that a unique transformation from a homogeneous magnetic state to a non-uniform spin precession extension wave occurs on increasing the temperature. Moreover, the uniaxial anisotropy has little effect on the hysteresis loop when the applied magnetic field is parallel to the revolution axis of the nanowire, whereas for an applied transverse magnetic field, the influence is larger.
75.75.+a Magnetic properties of nanostructures
75.50.Cc Other ferromagnetic metals and alloys
75.60.Ej Magnetization curves, hysteresis, Barkhausen and related effects
Issue 21 (7 November 2009)
Received 16 June 2009, in final form 27 August 2009
Published 13 October 2009
Shuang-Yi Liu et al 2009 J. Phys. D: Appl. Phys. 42 215002
Björn Henrich et al 2008 New J. Phys. 10 113022
J Avan and C Zambon 2008 J. Phys. A: Math. Theor. 41 194001
A Poole et al 2007 J. Phys.: Condens. Matter 19 452201
2009 Meas. Sci. Technol. 20 129901
J Kiukas et al 2008 J. Phys. A: Math. Theor. 41 175206
Jari Rosti et al 2009 J. Phys. D: Appl. Phys. 42 214013
Xiang-Guo Meng et al 2008 J. Phys. A: Math. Theor. 41 235208
J R Torgerson and L Mandel 1998 Phys. Scr. 1998 110
Daniel Bonamy 2009 J. Phys. D: Appl. Phys. 42 214014