Measurement of Characteristic Positron Annihilation Lifetime in HgCdTe

He Yuanjin; Xin Mingrui; Zhang Tianbao

Chinese Physics C> 1994, Vol. 18> Issue(8) : 752-756

Measurement of Characteristic Positron Annihilation Lifetime in HgCdTe

Department of Physics,Tsinghua University, Benjing 1000842 Lishan Microelectronics Inc.,Xian 7106003 Application Division,Institute of High Energy Physics,Academia Sinica,Beijing 100084

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Abstract：
A new measurement method of characteristic lifetime of positron annihilation in mercury cadmium telluride(MCT)in thermoequilibrium was proposed.A result of τ_b,the annihilation lifetime of positrons in bulk state in HgCdTe,being 277±1ps,and τ_d,the lifetime of positrons trapped in mercury vacancies,being 306±2pswas obtained.The result was discussed and compared with that from other methods.

References

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B.Geffroy,C.Corbel.R.Triboulet,P.Hautojarvi and P.Moser,Matter Sci.Forumm,Vol.1012（Trans.Tech）（1986）1241.[2]R.Krause,A.Polity,A.Klimatow and M.Schenk,Positron Annihilation（Singapore:World Scientific,1988）684.[3]Y.J.He,x.F.Li,L.H.Li,w.z.Yu and J.R.Xiao,J.Phys:Condens.Matter（UK）,1（1989）SA91.[4]R.Krause A.Klimakow,F.M.Kiessling,A.Polity,P.Gille and M.Schenk,J.Cryst,Grow.101（1990）512.[5]C.Gely,C,Corbel and R.Triboulet,J.Phys.:Condens,Matter（UK）,2（1990）4763.

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He Yuanjin, Xin Mingrui and Zhang Tianbao. Measurement of Characteristic Positron Annihilation Lifetime in HgCdTe[J]. Chinese Physics C, 1994, 18(8): 752-756.

He Yuanjin, Xin Mingrui and Zhang Tianbao. Measurement of Characteristic Positron Annihilation Lifetime in HgCdTe[J]. Chinese Physics C, 1994, 18(8): 752-756. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Measurement of Characteristic Positron Annihilation Lifetime in HgCdTe

Corresponding author: He Yuanjin,

Department of Physics,Tsinghua University, Benjing 1000842 Lishan Microelectronics Inc.,Xian 7106003 Application Division,Institute of High Energy Physics,Academia Sinica,Beijing 100084

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1994-08-05

Abstract: A new measurement method of characteristic lifetime of positron annihilation in mercury cadmium telluride(MCT)in thermoequilibrium was proposed.A result of τ_b,the annihilation lifetime of positrons in bulk state in HgCdTe,being 277±1ps,and τ_d,the lifetime of positrons trapped in mercury vacancies,being 306±2pswas obtained.The result was discussed and compared with that from other methods.