TY - JOUR
T1 - Electron spin resonance of chromium-platinum pair in silicon
AU - Ishiyama, Takeshi
AU - Tsurukawa, Takahiro
AU - Mori, Yuya
AU - Kamiura, Yoichi
AU - Yamashita, Yoshifumi
PY - 2011/8/1
Y1 - 2011/8/1
N2 - We have investigated a chromium-platinum pair in silicon by electron spin resonance measurement. A new ESR spectrum originating from a chromium-platinum pair has been detected in both n- and p-type silicons diffused with chromium and platinum. The anisotropic g-tensor obtained by analyzing the angular dependence of the ESR spectrum shows a monoclinic (C1h) symmetry with g-values of g1 = 4.67, g2 = 2.99, and g3 = 1.80. The g1 axis is along the (110) direction. The g2 and g 3 axes are perpendicular to the g1 axis, and the g 2 axis is rotated from the (100) direction to the (111) direction at an angle of 20°. The anisotropic character of monoclinic (C1h) symmetry results from the nearest-neighbor configuration consisting of a Pt atom at a substitutional site distorted by the displacement of Pt along the (100) direction and a Cr atom at the nearest-neighbor interstitial site. The ESR measurement under illumination suggests that a chromium-platinum pair forms a donor like electron trap level.
AB - We have investigated a chromium-platinum pair in silicon by electron spin resonance measurement. A new ESR spectrum originating from a chromium-platinum pair has been detected in both n- and p-type silicons diffused with chromium and platinum. The anisotropic g-tensor obtained by analyzing the angular dependence of the ESR spectrum shows a monoclinic (C1h) symmetry with g-values of g1 = 4.67, g2 = 2.99, and g3 = 1.80. The g1 axis is along the (110) direction. The g2 and g 3 axes are perpendicular to the g1 axis, and the g 2 axis is rotated from the (100) direction to the (111) direction at an angle of 20°. The anisotropic character of monoclinic (C1h) symmetry results from the nearest-neighbor configuration consisting of a Pt atom at a substitutional site distorted by the displacement of Pt along the (100) direction and a Cr atom at the nearest-neighbor interstitial site. The ESR measurement under illumination suggests that a chromium-platinum pair forms a donor like electron trap level.
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U2 - 10.1143/JJAP.50.081302
DO - 10.1143/JJAP.50.081302
M3 - Article
AN - SCOPUS:80052005727
SN - 0021-4922
VL - 50
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 8 PART 1
M1 - 081302
ER -