Zobrazeno 1 - 10
of 160
pro vyhledávání: '"R. L. Lichti"'
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p 033140 (2024)
Muonium (Mu), a pseudoisotope of hydrogen with a positively charged muon in place of the proton, takes the form Mu^{+,0,−} (like isolated hydrogen, i.e., H^{+,0,−}) in semiconductors. The specifics of the charge state depend on the local electron
Externí odkaz:
https://doaj.org/article/6bb03098b76b4749bfcd19ec741d0fc5
Autor:
K. Yokoyama, P. W. Mengyan, H. V. Alberto, James S. Lord, R. C. Vilão, M. R. Goeks, R. L. Lichti
Publikováno v:
Journal of Applied Physics. 127:095702
Positive muons can be implanted into silicon carbide (SiC), where they model the isolated hydrogen defect in the negative, neutral, or positive charge states and act as either an acceptor or a donor with midgap energy levels [Lichti et al., Phys. Rev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6599d4221b127a592f4d50cf76eaac0
https://doi.org/10.1063/1.5140733
https://doi.org/10.1063/1.5140733
Autor:
B B Baker, P. W. Mengyan, James S. Lord, H. V. Alberto, R. L. Lichti, R. C. Vilão, João Gil, A. Weidinger, R. B. L. Vieira
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
CIÊNCIAVITAE
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
CIÊNCIAVITAE
In implantation experiments, the implanted particle is shot with a certain energy into the material and comes to rest at a site which may not correspond to the final position. The rearrangements of the surrounding atoms to accommodate the particle, i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38d4e704fe0ac187ca818d835be9c4b3
Autor:
James S. Lord, A. G. Marinopoulos, B.B. Baker, R. B. L. Vieira, José A. Paixão, R. C. Vilão, A. Weidinger, H. V. Alberto, P.M. Gordo, P. W. Mengyan, João Gil, R. L. Lichti
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
We present a systematic study of isolated hydrogen in diverse forms of ${\mathrm{ZrO}}_{2}$ (zirconia), both undoped and stabilized in the cubic phase by additions of transition-metal oxides $({\mathrm{Y}}_{2}{\mathrm{O}}_{3},{\mathrm{Sc}}_{2}{\mathr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::654a284c2d8c65a6683b975f47eee58a
https://hdl.handle.net/10316/42340
https://hdl.handle.net/10316/42340
Autor:
A. G. Marinopoulos, P. W. Mengyan, R. B. L. Vieira, B.B. Baker, João Gil, H. V. Alberto, R. L. Lichti, E. Lora da Silva, R. C. Vilão
Publikováno v:
Physical Review B. 94
The electronic structure of hydrogen impurity in ${\mathrm{Lu}}_{2}{\mathrm{O}}_{3}$ was studied by first-principles calculations and muonium spectroscopy. The computational scheme was based on two methods which are well suited to treat defect calcul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04e182cd51d339063afb2e4c985f91bb
https://doi.org/10.1103/physrevb.94.014104
https://doi.org/10.1103/physrevb.94.014104
Publikováno v:
Physics Procedia. 30:206-209
We have been investigating diamagnetic muonium centers in several optically transparent conducting oxides by zero field (ZF) muon spin depolarization. In this report we present our findings on single crystal β -Ga2O3. ZF data from Ga2O3 are represen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::520672a5418985d9f5c5c13d9b90eb8a
Publikováno v:
Physica B: Condensed Matter. 404:5117-5120
Data for low-field muon spin rotation spectra for 4H-SiC is presented for a wide temperature range from 10 to 1400 K. At low temperatures, dependence of amplitude transitions for all the samples show carrier capture processes. For p-type sample in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3abb88ed9b724faef35ee8a01ff98c1f
https://doi.org/10.1016/j.physb.2009.08.246
https://doi.org/10.1016/j.physb.2009.08.246
Publikováno v:
Physica B: Condensed Matter. 404:5106-5109
The deep donor and acceptor levels have been obtained for the muonium analog of isolated hydrogen impurities in six semiconductors. Using theoretical band alignments, we have shown that defect-level energies for Mu in these materials are pinned at a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25c32db67d98a228c05d29638c0e0462
https://doi.org/10.1016/j.physb.2009.08.243
https://doi.org/10.1016/j.physb.2009.08.243
Autor:
P. W. Mengyan, B.B. Baker, Kim H. Chow, Peter G. Schunemann, Y.G. Celebi, R. L. Lichti, Kevin T. Zawilski
Publikováno v:
Physica B: Condensed Matter. 404:5121-5124
In this contribution, we report the initial observation of neutral muonium defect centers in ZnGeP2. The spin-precession frequencies in a 4.0 T field yield a zero-temperature hyperfine constant of ~1965 MHz for the promptly formed Mu0 state. Subseque
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3880fffac1bd474b78b5da9833615890
https://doi.org/10.1016/j.physb.2009.08.212
https://doi.org/10.1016/j.physb.2009.08.212
Publikováno v:
Physica B: Condensed Matter. 404:5113-5116
We have observed muon spin rotation ( μ SR ) features that are consistent with a shallow muonium (Mu) acceptor state for several Ge-rich silicon germanium alloy compositions. The Mu T [ 0 / - ] defect level crosses into the valence band at a Ge cont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4295f990b1af9d7794e1a6f851e9a70e
https://doi.org/10.1016/j.physb.2009.08.245
https://doi.org/10.1016/j.physb.2009.08.245