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The electron emission yields from the interaction of slow highly charged ions (SHCI)He2+,O2+and Ne2+ with clean Si surface are measured separately. It is found that electron emission yield γ increases proportionally to projectile kinetic energy EP/MP ranging from 0.75 keV/u to 10.5 keV/u (i.e. 3.8×105 m/s≤vP≤ 1.42×106 m/s), and it is higher for heavy ions (O2+and Ne2+) than for light ion (He2+). For O2+and Ne2+, γ increases with ZP decreasing in our energy range, and it shows quite different from the result for higher projectile kinetic energy. After calculating the stopping power by using TRIM 2006, it is found that the fraction of secondary electrons induced by recoil atoms increases significantly at lower projectile energy, thereby leads to the differences in γ for heavy ions O2+and Ne2+between lower and higher projectile kinetic energy.
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Keywords:
- slow highly charged ions /
- electron emission /
- recoil atom /
- stopping power
[1] Lucio O G, Gavin J, DuBois R D 2006 Phys. Rev. Lett. 97 243201
[2] Baragiola R A, Dukes C A 1996 Phys. Rev. Lett. 76 2547
[3] Kovacs D A, Peters T, Haake C, Schleberger M, Wucher A, Golczewski A, Aumayr F, Diesing D, 2008 Phys. Rev. B 77 245432
[4] Bajales N, Cristina L, Mendoza S, Baragiola R A, Goldberg E C, Ferrón J 2008 Phys. Rev. Lett. 100 227604
[5] Kudo M, Sakai Y 2000 Appl. Phys. Lett. 76 3475
[6] Hu B T, Zhang H J, Zhang J, Song Y S, Wang L L, Chen C H, Gu J G 2007 Chin. Phys. 16 2918
[7] Chen X M, Xi F Y, Qiu X Y, Shao J X, Xiao G Q, Cui Y, Sun G Z, Wang J, Chen Y F, Liu H P,Yin Y Z, Wang Y Y, Li D H, Lou F J, Wang X A, Xu J K, Zhou C L 2009 Chin. Phys. B 18 1955
[8] Rothard H, Kroneberger K, Clouvas A, Veje E, Lorenzen P, Keller N, Kemmler J, Meckbach W, Groeneveld K O 1990 Phys. Rev. A 41 2521
[9] Markin S N, Primetzhofer D, Prusa S, Brunmayr M, Kowarik G, Aumayr F, Bauer P 2008 Phys. Rev. B 78 195122
[10] Stefanovi Dc＇ I, Berndt J, Mari Dc＇ D, amara V, Radmilovi Dc＇ -Radjenovi Dc＇ M, Petrovi Dc＇ Z L, Kova evic Dc＇ E, Winter J 2006 Phys. Rev. E 74 026406
[11] Lederer S, Winter H, Lemell C, J. Burgdrfer 2005 Phys. Rev. B 72 161402
[12] Linford L H 1935 Phys. Rev 47 279
[13] Hill A G, Buechner W W, Clark J S, Fisk J B 1939 Phys. Rev 55 463
[14] Bernhard T, Winter H 2009 Phys. Rev. B 79 033411
[15] Xu Z F, Zhao Y T, Wang Y Y, Zhao D, Wang J G, Li D H, Qayyum A, Li F L, Xiao G Q 2008 Chin. Phys. C 32 247
[16] Zhao Y T, Xiao G Q, Zhang X A, Yang Z H, Zhang Y P, Zhan W L, Chen X M, Li F L 2007 Nucl. Instr. and Meth. B 258 121
[17] Zhao Y T, Xiao G Q, Xu Z F, Qayyum A, Wang Y Y, Zhang X A, Li F L, Zhan W L 2007 Acta Phys. Sin. 56 5734 (in Chinese) [赵永涛、肖国青、徐忠锋、Abdul Qayyum、王瑜玉、张小安、李福利、詹文龙 2007 56 5734]
[18] Wang Y Y, Zhao Y T, Xiao G Q, Fang Y, Zhang X A, Wang T S, Wang S W and Peng H B 2006 Acta Phys. Sin. 55 673 (in Chinese) [王瑜玉、赵永涛、肖国青、房 燕、张小安、王铁山、王释伟、彭海波 2006 55 673]
[19] Baragiola R A, Alonso E V, Florio A O 1979 Phys. Rev. B 19 121
[20] Michaelson H B 1977 J. Appl. Phys. 48 4729
[21] Sternglass E J 1957 Phys. Rev. 108 1
[22] Schou J 1980 Phys. Rev. B 22 2141
[23] Holmén G, Svensson B, Schou J, Sigmund P 1979 Phys. Rev. B 20 2247
[24] Peter Sigmund 1969 Phys. Rev 184 383
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[1] Lucio O G, Gavin J, DuBois R D 2006 Phys. Rev. Lett. 97 243201
[2] Baragiola R A, Dukes C A 1996 Phys. Rev. Lett. 76 2547
[3] Kovacs D A, Peters T, Haake C, Schleberger M, Wucher A, Golczewski A, Aumayr F, Diesing D, 2008 Phys. Rev. B 77 245432
[4] Bajales N, Cristina L, Mendoza S, Baragiola R A, Goldberg E C, Ferrón J 2008 Phys. Rev. Lett. 100 227604
[5] Kudo M, Sakai Y 2000 Appl. Phys. Lett. 76 3475
[6] Hu B T, Zhang H J, Zhang J, Song Y S, Wang L L, Chen C H, Gu J G 2007 Chin. Phys. 16 2918
[7] Chen X M, Xi F Y, Qiu X Y, Shao J X, Xiao G Q, Cui Y, Sun G Z, Wang J, Chen Y F, Liu H P,Yin Y Z, Wang Y Y, Li D H, Lou F J, Wang X A, Xu J K, Zhou C L 2009 Chin. Phys. B 18 1955
[8] Rothard H, Kroneberger K, Clouvas A, Veje E, Lorenzen P, Keller N, Kemmler J, Meckbach W, Groeneveld K O 1990 Phys. Rev. A 41 2521
[9] Markin S N, Primetzhofer D, Prusa S, Brunmayr M, Kowarik G, Aumayr F, Bauer P 2008 Phys. Rev. B 78 195122
[10] Stefanovi Dc＇ I, Berndt J, Mari Dc＇ D, amara V, Radmilovi Dc＇ -Radjenovi Dc＇ M, Petrovi Dc＇ Z L, Kova evic Dc＇ E, Winter J 2006 Phys. Rev. E 74 026406
[11] Lederer S, Winter H, Lemell C, J. Burgdrfer 2005 Phys. Rev. B 72 161402
[12] Linford L H 1935 Phys. Rev 47 279
[13] Hill A G, Buechner W W, Clark J S, Fisk J B 1939 Phys. Rev 55 463
[14] Bernhard T, Winter H 2009 Phys. Rev. B 79 033411
[15] Xu Z F, Zhao Y T, Wang Y Y, Zhao D, Wang J G, Li D H, Qayyum A, Li F L, Xiao G Q 2008 Chin. Phys. C 32 247
[16] Zhao Y T, Xiao G Q, Zhang X A, Yang Z H, Zhang Y P, Zhan W L, Chen X M, Li F L 2007 Nucl. Instr. and Meth. B 258 121
[17] Zhao Y T, Xiao G Q, Xu Z F, Qayyum A, Wang Y Y, Zhang X A, Li F L, Zhan W L 2007 Acta Phys. Sin. 56 5734 (in Chinese) [赵永涛、肖国青、徐忠锋、Abdul Qayyum、王瑜玉、张小安、李福利、詹文龙 2007 56 5734]
[18] Wang Y Y, Zhao Y T, Xiao G Q, Fang Y, Zhang X A, Wang T S, Wang S W and Peng H B 2006 Acta Phys. Sin. 55 673 (in Chinese) [王瑜玉、赵永涛、肖国青、房 燕、张小安、王铁山、王释伟、彭海波 2006 55 673]
[19] Baragiola R A, Alonso E V, Florio A O 1979 Phys. Rev. B 19 121
[20] Michaelson H B 1977 J. Appl. Phys. 48 4729
[21] Sternglass E J 1957 Phys. Rev. 108 1
[22] Schou J 1980 Phys. Rev. B 22 2141
[23] Holmén G, Svensson B, Schou J, Sigmund P 1979 Phys. Rev. B 20 2247
[24] Peter Sigmund 1969 Phys. Rev 184 383
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