Study of intermixing and Zr-silicide formation using swift heavy ion irradiation

作者: Garima Agarwal , Vaibhav Kulshrestha , Renu Dhunna , D. Kabiraj , Shikha Verma

DOI: 10.1007/S00339-010-5631-2

关键词: Ion trackSwift heavy ionIon beam mixingAnalytical chemistryChemistrySchottky barrierIrradiationIonThin filmFluence

摘要: Swift heavy ion (SHI) beam induced irradiation is an established technique for investigating structural modifications in thin films depending on the S e sensitivity of material. Intermixing due to 120 MeV Au at different fluences from 1012 1014 ions/cm2 has been reported as a function fluence a-Si/Zr/a-Si Si substrate. The samples are characterized before (pristine) and after using Grazing Incident X-ray Diffraction (GIXRD) Rutherford Backscattering Spectroscopy (RBS), which confirm formation ZrSi film interface. It suggested that mixing mainly electronic energy loss since transferred high ions seems create transient molten zone along track. found interface increases linearly with increase fluence. effect explained framework Thermal spike model. surface roughness system measured Atomic Force Microscopy (AFM) technique. current conduction mechanism Schottky barrier height also calculated by taking I–V curves across Metal/Si junction.

参考文章(34)
Jae-Yeob Shim, Joon-Seop Kwak, Eung-Jun Chi, Hong-Koo Baik, Sung-Man Lee, Formation of amorphous and crystalline phases, and phase transition by solid-state reaction in Zr/Si multilayer thin films Thin Solid Films. ,vol. 269, pp. 102- 107 ,(1995) , 10.1016/0040-6090(95)06744-2
T. Motooka, S. Harada, M. Ishimaru, Homogeneous Amorphization in High-Energy Ion Implanted Si Physical Review Letters. ,vol. 78, pp. 2980- 2982 ,(1997) , 10.1103/PHYSREVLETT.78.2980
B.R. Chakraborty, D. Kabiraj, K. Diva, J.C. Pivin, D.K. Avasthi, Mixing behaviour of buried transition metal layer in silicon due to swift heavy ion irradiation Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 244, pp. 209- 212 ,(2006) , 10.1016/J.NIMB.2005.11.133
T. Yamauchi, S. Zaima, K. Mizuno, H. Kitamura, Y. Koide, Y. Yasuda, Solid phase reaction and electrical properties in Zr/Si system Applied Physics Letters. ,vol. 57, pp. 1105- 1107 ,(1990) , 10.1063/1.103505
Saskia Kraft, Beate Schattat, Wolfgang Bolse, Siegfried Klaumünzer, Felix Harbsmeier, Agnieszka Kulinska, Anton Löffl, Ion beam mixing of ZnO/SiO2 and Sb/Ni/Si interfaces under swift heavy ion irradiation Journal of Applied Physics. ,vol. 91, pp. 1129- 1134 ,(2002) , 10.1063/1.1425439
Yang-Tse Cheng, Thermodynamic and fractal geometric aspects of ion-solid interactions Materials Science Reports. ,vol. 5, pp. 45- 97 ,(1990) , 10.1016/S0920-2307(05)80007-6
Lawrence R. Doolittle, Algorithms for the rapid simulation of Rutherford backscattering spectra Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. ,vol. 9, pp. 344- 351 ,(1985) , 10.1016/0168-583X(85)90762-1
Shyam P. Murarka, Silicide thin films and their applications in microelectronics Intermetallics. ,vol. 3, pp. 173- 186 ,(1995) , 10.1016/0966-9795(95)98929-3
Menachem Nathan, Solid phase reactions in free-standing layered M-Si (M= Ti, V, Cr, Co) films Journal of Applied Physics. ,vol. 63, pp. 5534- 5540 ,(1988) , 10.1063/1.340330
Yu.N. Yavlinskii, Electron excitation relaxation in wide-gap single crystal insulators under swift heavy-ion irradiation Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 166, pp. 35- 39 ,(2000) , 10.1016/S0168-583X(99)00736-3