μSR studies in heavily doped GaAs

ISSN:
1572-9540
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Transverse-field (TF) and longitudinal-field (LF)μ + SR measurements have been made on conducting GaAs∶Si (n-type ≈ 1018 cm−3) and GaAs∶Zn (p-type ≈ 1019 cm−3) from 20 mK to 200 K. At low temperatures in GaAs∶Si, the frequency spectra show a large diamagnetic signal as well as broad lines due to bond-centered muonium (Mu BC ). This broadening is attributed to spin exchange interactions with charge carriers in impurity bands. Only the diamagnetic signal is observed in GaAs∶Zn. The field dependence of the TF diamagnetic relaxation rate at 5 K can be explained by the combined electric quadrupolar and Zeeman interaction between the muon and the surrounding nuclei and the temperature scan at TF=1.5 T indicates that the mechanisms responsible for the broadening are temperature independent. The candidates for the diamagnetic species are discussed in view of these results.
Type of Medium:
Electronic Resource
URL:
_version_ 1798297433662291970
autor Chow, K. H.
Kiefl, R. F.
Schneider, J. W.
Estle, T. L.
Hitti, B.
Johnston, T. M. S.
Lichti, R. L.
MacFarlane, W. A.
autorsonst Chow, K. H.
Kiefl, R. F.
Schneider, J. W.
Estle, T. L.
Hitti, B.
Johnston, T. M. S.
Lichti, R. L.
MacFarlane, W. A.
book_url http://dx.doi.org/10.1007/BF02068959
datenlieferant nat_lic_papers
hauptsatz hsatz_simple
identnr NLM194379450
issn 1572-9540
journal_name Hyperfine interactions
materialart 1
notes Abstract Transverse-field (TF) and longitudinal-field (LF)μ + SR measurements have been made on conducting GaAs∶Si (n-type ≈ 1018 cm−3) and GaAs∶Zn (p-type ≈ 1019 cm−3) from 20 mK to 200 K. At low temperatures in GaAs∶Si, the frequency spectra show a large diamagnetic signal as well as broad lines due to bond-centered muonium (Mu BC ). This broadening is attributed to spin exchange interactions with charge carriers in impurity bands. Only the diamagnetic signal is observed in GaAs∶Zn. The field dependence of the TF diamagnetic relaxation rate at 5 K can be explained by the combined electric quadrupolar and Zeeman interaction between the muon and the surrounding nuclei and the temperature scan at TF=1.5 T indicates that the mechanisms responsible for the broadening are temperature independent. The candidates for the diamagnetic species are discussed in view of these results.
package_name Springer
publikationsjahr_anzeige 1994
publikationsjahr_facette 1994
publikationsjahr_intervall 8009:1990-1994
publikationsjahr_sort 1994
publisher Springer
reference 86 (1994), S. 645-651
search_space articles
shingle_author_1 Chow, K. H.
Kiefl, R. F.
Schneider, J. W.
Estle, T. L.
Hitti, B.
Johnston, T. M. S.
Lichti, R. L.
MacFarlane, W. A.
shingle_author_2 Chow, K. H.
Kiefl, R. F.
Schneider, J. W.
Estle, T. L.
Hitti, B.
Johnston, T. M. S.
Lichti, R. L.
MacFarlane, W. A.
shingle_author_3 Chow, K. H.
Kiefl, R. F.
Schneider, J. W.
Estle, T. L.
Hitti, B.
Johnston, T. M. S.
Lichti, R. L.
MacFarlane, W. A.
shingle_author_4 Chow, K. H.
Kiefl, R. F.
Schneider, J. W.
Estle, T. L.
Hitti, B.
Johnston, T. M. S.
Lichti, R. L.
MacFarlane, W. A.
shingle_catch_all_1 Chow, K. H.
Kiefl, R. F.
Schneider, J. W.
Estle, T. L.
Hitti, B.
Johnston, T. M. S.
Lichti, R. L.
MacFarlane, W. A.
μSR studies in heavily doped GaAs
Abstract Transverse-field (TF) and longitudinal-field (LF)μ + SR measurements have been made on conducting GaAs∶Si (n-type ≈ 1018 cm−3) and GaAs∶Zn (p-type ≈ 1019 cm−3) from 20 mK to 200 K. At low temperatures in GaAs∶Si, the frequency spectra show a large diamagnetic signal as well as broad lines due to bond-centered muonium (Mu BC ). This broadening is attributed to spin exchange interactions with charge carriers in impurity bands. Only the diamagnetic signal is observed in GaAs∶Zn. The field dependence of the TF diamagnetic relaxation rate at 5 K can be explained by the combined electric quadrupolar and Zeeman interaction between the muon and the surrounding nuclei and the temperature scan at TF=1.5 T indicates that the mechanisms responsible for the broadening are temperature independent. The candidates for the diamagnetic species are discussed in view of these results.
1572-9540
15729540
Springer
shingle_catch_all_2 Chow, K. H.
Kiefl, R. F.
Schneider, J. W.
Estle, T. L.
Hitti, B.
Johnston, T. M. S.
Lichti, R. L.
MacFarlane, W. A.
μSR studies in heavily doped GaAs
Abstract Transverse-field (TF) and longitudinal-field (LF)μ + SR measurements have been made on conducting GaAs∶Si (n-type ≈ 1018 cm−3) and GaAs∶Zn (p-type ≈ 1019 cm−3) from 20 mK to 200 K. At low temperatures in GaAs∶Si, the frequency spectra show a large diamagnetic signal as well as broad lines due to bond-centered muonium (Mu BC ). This broadening is attributed to spin exchange interactions with charge carriers in impurity bands. Only the diamagnetic signal is observed in GaAs∶Zn. The field dependence of the TF diamagnetic relaxation rate at 5 K can be explained by the combined electric quadrupolar and Zeeman interaction between the muon and the surrounding nuclei and the temperature scan at TF=1.5 T indicates that the mechanisms responsible for the broadening are temperature independent. The candidates for the diamagnetic species are discussed in view of these results.
1572-9540
15729540
Springer
shingle_catch_all_3 Chow, K. H.
Kiefl, R. F.
Schneider, J. W.
Estle, T. L.
Hitti, B.
Johnston, T. M. S.
Lichti, R. L.
MacFarlane, W. A.
μSR studies in heavily doped GaAs
Abstract Transverse-field (TF) and longitudinal-field (LF)μ + SR measurements have been made on conducting GaAs∶Si (n-type ≈ 1018 cm−3) and GaAs∶Zn (p-type ≈ 1019 cm−3) from 20 mK to 200 K. At low temperatures in GaAs∶Si, the frequency spectra show a large diamagnetic signal as well as broad lines due to bond-centered muonium (Mu BC ). This broadening is attributed to spin exchange interactions with charge carriers in impurity bands. Only the diamagnetic signal is observed in GaAs∶Zn. The field dependence of the TF diamagnetic relaxation rate at 5 K can be explained by the combined electric quadrupolar and Zeeman interaction between the muon and the surrounding nuclei and the temperature scan at TF=1.5 T indicates that the mechanisms responsible for the broadening are temperature independent. The candidates for the diamagnetic species are discussed in view of these results.
1572-9540
15729540
Springer
shingle_catch_all_4 Chow, K. H.
Kiefl, R. F.
Schneider, J. W.
Estle, T. L.
Hitti, B.
Johnston, T. M. S.
Lichti, R. L.
MacFarlane, W. A.
μSR studies in heavily doped GaAs
Abstract Transverse-field (TF) and longitudinal-field (LF)μ + SR measurements have been made on conducting GaAs∶Si (n-type ≈ 1018 cm−3) and GaAs∶Zn (p-type ≈ 1019 cm−3) from 20 mK to 200 K. At low temperatures in GaAs∶Si, the frequency spectra show a large diamagnetic signal as well as broad lines due to bond-centered muonium (Mu BC ). This broadening is attributed to spin exchange interactions with charge carriers in impurity bands. Only the diamagnetic signal is observed in GaAs∶Zn. The field dependence of the TF diamagnetic relaxation rate at 5 K can be explained by the combined electric quadrupolar and Zeeman interaction between the muon and the surrounding nuclei and the temperature scan at TF=1.5 T indicates that the mechanisms responsible for the broadening are temperature independent. The candidates for the diamagnetic species are discussed in view of these results.
1572-9540
15729540
Springer
shingle_title_1 μSR studies in heavily doped GaAs
shingle_title_2 μSR studies in heavily doped GaAs
shingle_title_3 μSR studies in heavily doped GaAs
shingle_title_4 μSR studies in heavily doped GaAs
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source_archive Springer Online Journal Archives 1860-2000
timestamp 2024-05-06T10:07:55.404Z
titel μSR studies in heavily doped GaAs
titel_suche μSR studies in heavily doped GaAs
topic U
uid nat_lic_papers_NLM194379450