Evidence of palladium-defect pairing in intrinsic germanium

H. Timmers; W. Kemp; A. P. Byrne; M. C. Ridgway; R. Vianden; P. Kessler; M. Steffens

doi:10.1007/s10751-010-0206-3

Evidence of palladium-defect pairing in intrinsic germanium

H. Timmers^*, W. Kemp, A. P. Byrne, M. C. Ridgway, R. Vianden, P. Kessler, M. Steffens

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Time Differential Perturbed Angular Correlation measurements were performed in intrinsic germanium with the ¹⁰⁰Pd/¹⁰⁰Rh probe. The probe was produced via ⁹²Zr(¹²C, 4n)¹⁰⁰Pd and recoil-implanted into samples. Parallel measurements with the ¹¹¹In/¹¹¹Cd probe confirmed the quality of the germanium studied. The measurements with the ¹⁰⁰Pd/¹⁰⁰Rh probe show a modulation pattern in the ratio function with a quadrupole interaction frequency of 8.3(2) Mrad/s. The pattern depends on sample orientation and it is most pronounced after annealing at 500°C. After annealing at 700°C the effect vanishes due to strong damping of the ratio function. The pattern may be caused, similar to what has been observed for highly doped n-type silicon, by the pairing of the Pd-atom with a vacancy located in the < 111 > direction. The disappearance of the pattern would indicate the dissociation of this pair. Pair formation and dissociation may be relevant to palladium-induced-crystallization processing of germanium.

Original language	English
Pages (from-to)	159-165
Number of pages	7
Journal	Hyperfine Interactions
Volume	197
Issue number	1
DOIs	https://doi.org/10.1007/s10751-010-0206-3
Publication status	Published - 2010

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title = "Evidence of palladium-defect pairing in intrinsic germanium",

abstract = "Time Differential Perturbed Angular Correlation measurements were performed in intrinsic germanium with the 100Pd/100Rh probe. The probe was produced via 92Zr(12C, 4n)100Pd and recoil-implanted into samples. Parallel measurements with the 111In/111Cd probe confirmed the quality of the germanium studied. The measurements with the 100Pd/100Rh probe show a modulation pattern in the ratio function with a quadrupole interaction frequency of 8.3(2) Mrad/s. The pattern depends on sample orientation and it is most pronounced after annealing at 500°C. After annealing at 700°C the effect vanishes due to strong damping of the ratio function. The pattern may be caused, similar to what has been observed for highly doped n-type silicon, by the pairing of the Pd-atom with a vacancy located in the < 111 > direction. The disappearance of the pattern would indicate the dissociation of this pair. Pair formation and dissociation may be relevant to palladium-induced-crystallization processing of germanium.",

keywords = "Germanium, Metal induced crystallization, Perturbed angular correlation, Semiconductor defects",

author = "H. Timmers and W. Kemp and Byrne, {A. P.} and Ridgway, {M. C.} and R. Vianden and P. Kessler and M. Steffens",

year = "2010",

doi = "10.1007/s10751-010-0206-3",

language = "English",

volume = "197",

pages = "159--165",

journal = "Hyperfine Interactions",

issn = "0304-3843",

publisher = "Springer Nature",

number = "1",

}

TY - JOUR

T1 - Evidence of palladium-defect pairing in intrinsic germanium

AU - Timmers, H.

AU - Kemp, W.

AU - Byrne, A. P.

AU - Ridgway, M. C.

AU - Vianden, R.

AU - Kessler, P.

AU - Steffens, M.

PY - 2010

Y1 - 2010

N2 - Time Differential Perturbed Angular Correlation measurements were performed in intrinsic germanium with the 100Pd/100Rh probe. The probe was produced via 92Zr(12C, 4n)100Pd and recoil-implanted into samples. Parallel measurements with the 111In/111Cd probe confirmed the quality of the germanium studied. The measurements with the 100Pd/100Rh probe show a modulation pattern in the ratio function with a quadrupole interaction frequency of 8.3(2) Mrad/s. The pattern depends on sample orientation and it is most pronounced after annealing at 500°C. After annealing at 700°C the effect vanishes due to strong damping of the ratio function. The pattern may be caused, similar to what has been observed for highly doped n-type silicon, by the pairing of the Pd-atom with a vacancy located in the < 111 > direction. The disappearance of the pattern would indicate the dissociation of this pair. Pair formation and dissociation may be relevant to palladium-induced-crystallization processing of germanium.

AB - Time Differential Perturbed Angular Correlation measurements were performed in intrinsic germanium with the 100Pd/100Rh probe. The probe was produced via 92Zr(12C, 4n)100Pd and recoil-implanted into samples. Parallel measurements with the 111In/111Cd probe confirmed the quality of the germanium studied. The measurements with the 100Pd/100Rh probe show a modulation pattern in the ratio function with a quadrupole interaction frequency of 8.3(2) Mrad/s. The pattern depends on sample orientation and it is most pronounced after annealing at 500°C. After annealing at 700°C the effect vanishes due to strong damping of the ratio function. The pattern may be caused, similar to what has been observed for highly doped n-type silicon, by the pairing of the Pd-atom with a vacancy located in the < 111 > direction. The disappearance of the pattern would indicate the dissociation of this pair. Pair formation and dissociation may be relevant to palladium-induced-crystallization processing of germanium.

KW - Germanium

KW - Metal induced crystallization

KW - Perturbed angular correlation

KW - Semiconductor defects

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U2 - 10.1007/s10751-010-0206-3

DO - 10.1007/s10751-010-0206-3

M3 - Article

SN - 0304-3843

VL - 197

SP - 159

EP - 165

JO - Hyperfine Interactions

JF - Hyperfine Interactions

IS - 1

ER -

Evidence of palladium-defect pairing in intrinsic germanium

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