Muonium studies of p-type semi-conducting diamond under conditions of UV-visible illumination

I. Z. Machi; S. H. Connell; J. Major; C. G. Smallman; J. P.F. Sellschop; K. Bharuth-Ram; R. D. Maclear; B. P. Doyle; J. E. Butler; R. Scheuermann; A. Seeger

Muonium studies of p-type semi-conducting diamond under conditions of UV-visible illumination

I. Z. Machi, S. H. Connell, J. Major, C. G. Smallman, J. P.F. Sellschop, K. Bharuth-Ram, R. D. Maclear, B. P. Doyle, J. E. Butler, R. Scheuermann, A. Seeger

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

3 Citations (Scopus)

Abstract

This work reports on the promptly forming fraction and the spin relaxation rate of the isotropic muonium (MU_T) component in p-type semi-conducting diamond, measured under the condition of illumination. The data are the first such investigations for diamond. A broad band illumination with wavelengths ranging from 0.5 μm to 3 μm was obtained from a Xenon lamp. The energy of the photons was sufficient to excite electrons from the valence band to the 0.28 ppm boron impurity band (0.37 eV). The Transverse Field Muon Spin Rotation (TF-μSR) measurements were conducted as a function of temperature, ranging from 5 K to 300 K. An illumination effect at temperatures below 100 K is observed. It is not yet clear from these data whether the effect is due to MUT scattering off delocalized holes, which are removed by illumination or whether there is prompt trapping of MU_T at boron impurities (passivation) which is affected by illumination.

Original language	English
Pages (from-to)	585-589
Number of pages	5
Journal	Hyperfine Interactions
Volume	120-121
Issue number	1-8
Publication status	Published - 1999
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Condensed Matter Physics
Physical and Theoretical Chemistry

Cite this

@article{e7549a6e0c1645b1869ca6086cfd6e21,

title = "Muonium studies of p-type semi-conducting diamond under conditions of UV-visible illumination",

abstract = "This work reports on the promptly forming fraction and the spin relaxation rate of the isotropic muonium (MUT) component in p-type semi-conducting diamond, measured under the condition of illumination. The data are the first such investigations for diamond. A broad band illumination with wavelengths ranging from 0.5 μm to 3 μm was obtained from a Xenon lamp. The energy of the photons was sufficient to excite electrons from the valence band to the 0.28 ppm boron impurity band (0.37 eV). The Transverse Field Muon Spin Rotation (TF-μSR) measurements were conducted as a function of temperature, ranging from 5 K to 300 K. An illumination effect at temperatures below 100 K is observed. It is not yet clear from these data whether the effect is due to MUT scattering off delocalized holes, which are removed by illumination or whether there is prompt trapping of MUT at boron impurities (passivation) which is affected by illumination.",

author = "Machi, {I. Z.} and Connell, {S. H.} and J. Major and Smallman, {C. G.} and Sellschop, {J. P.F.} and K. Bharuth-Ram and Maclear, {R. D.} and Doyle, {B. P.} and Butler, {J. E.} and R. Scheuermann and A. Seeger",

year = "1999",

language = "English",

volume = "120-121",

pages = "585--589",

journal = "Hyperfine Interactions",

issn = "0304-3843",

publisher = "Springer Nature",

number = "1-8",

}

TY - JOUR

T1 - Muonium studies of p-type semi-conducting diamond under conditions of UV-visible illumination

AU - Machi, I. Z.

AU - Connell, S. H.

AU - Major, J.

AU - Smallman, C. G.

AU - Sellschop, J. P.F.

AU - Bharuth-Ram, K.

AU - Maclear, R. D.

AU - Doyle, B. P.

AU - Butler, J. E.

AU - Scheuermann, R.

AU - Seeger, A.

PY - 1999

Y1 - 1999

N2 - This work reports on the promptly forming fraction and the spin relaxation rate of the isotropic muonium (MUT) component in p-type semi-conducting diamond, measured under the condition of illumination. The data are the first such investigations for diamond. A broad band illumination with wavelengths ranging from 0.5 μm to 3 μm was obtained from a Xenon lamp. The energy of the photons was sufficient to excite electrons from the valence band to the 0.28 ppm boron impurity band (0.37 eV). The Transverse Field Muon Spin Rotation (TF-μSR) measurements were conducted as a function of temperature, ranging from 5 K to 300 K. An illumination effect at temperatures below 100 K is observed. It is not yet clear from these data whether the effect is due to MUT scattering off delocalized holes, which are removed by illumination or whether there is prompt trapping of MUT at boron impurities (passivation) which is affected by illumination.

AB - This work reports on the promptly forming fraction and the spin relaxation rate of the isotropic muonium (MUT) component in p-type semi-conducting diamond, measured under the condition of illumination. The data are the first such investigations for diamond. A broad band illumination with wavelengths ranging from 0.5 μm to 3 μm was obtained from a Xenon lamp. The energy of the photons was sufficient to excite electrons from the valence band to the 0.28 ppm boron impurity band (0.37 eV). The Transverse Field Muon Spin Rotation (TF-μSR) measurements were conducted as a function of temperature, ranging from 5 K to 300 K. An illumination effect at temperatures below 100 K is observed. It is not yet clear from these data whether the effect is due to MUT scattering off delocalized holes, which are removed by illumination or whether there is prompt trapping of MUT at boron impurities (passivation) which is affected by illumination.

UR - http://www.scopus.com/inward/record.url?scp=0011383051&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0011383051

SN - 0304-3843

VL - 120-121

SP - 585

EP - 589

JO - Hyperfine Interactions

JF - Hyperfine Interactions

IS - 1-8

ER -

Muonium studies of p-type semi-conducting diamond under conditions of UV-visible illumination

Abstract

ASJC Scopus subject areas

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