Magnetic measurements indicate a dependence of the squareness and the coercivity of the magnetization hysteresis loop on pH values with a maximum coercivity of 1425 Oe. The morphological properties of CoNiP nanowires were studied by transmission electron microscopy (TEM). The chemical composition was determined by examination of the energy dispersive X-ray (EDS) spectra and the magnetic properties were measured by vibrating sample magnetometry (VSM). | Communications in Physics, Vol. 24, No. 3S1 (2014), pp. 103-107 DOI: INFLUENCE OF BATH COMPOSITION ON THE ELECTRODEPOSITED Co-Ni-P NANOWIRES LUU VAN THIEM Faculty of Engineering Physics and Nanotechnology, University of Engineering Technology, Vietnam National University, Hanoi and Faculty of Basic Science, Hanoi Industrial College for Textile, Garment and Fashion LE TUAN TU Faculty of Physics, University of Science, Vietnam National University, Hanoi PHAM DUC THANG Faculty of Engineering Physics and Nanotechnology, University of Engineering Technology, Vietnam National University, Hanoi E-mail: letuantu@ Received 20 June 2014 Accepted for publication 20 August 2014 Abstract. CoNiP nanowire arrays were fabricated by electrodeposition method into polycarbonate (PC) templates at different pH values. It is obvious that the crystal structure of the CoNiP nanowires depends on the pH values of electrolyte. The XRD results show that crystal structure of the CoNiP nanowires is hcp structure and the intensity of the hcp (002) increased enhances as solution pH =5. Magnetic measurements indicate a dependence of the squareness and the coercivity of the magnetization hysteresis loop on pH values with a maximum coercivity of 1425 Oe. The morphological properties of CoNiP nanowires were studied by transmission electron microscopy (TEM). The chemical composition was determined by examination of the energy dispersive X-ray (EDS) spectra and the magnetic properties were measured by vibrating sample magnetometry (VSM). Keywords: electrodeposition, nanowire arrays, magnetic anisotropy, pH values, CoNiP. I. INTRODUCTION In recent years, magnetic nanowires have attracted much attention because of their unique magnetic properties and application potential for cell separation, biosensing, gene delivery, high density recording, high frequency sensors and others devices [1–5]. Tanase et al. studied the spatial organization of mammalian cells using
