Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Phillip Cervantes"'
Publikováno v:
American Journal of Physics. 88:795-800
The application of linear regression to data analysis is traditionally a tedious calculation delegated to a computer. This article presents a physical model to facilitate an intuitive way of thinking about the slope of a fit. In this simple model, da
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::deb42d05c8a5765feb775d3b8c261a61
https://doi.org/10.1119/10.0001509
https://doi.org/10.1119/10.0001509
Publikováno v:
Journal of Physics and Chemistry of Solids. 63:1927-1933
The indirect energy gap and electrical resistivity of FeS 2 -pyrite have been measured at high pressures and 300 K using optical absorption spectroscopy and electrical conductivity measurements. Absorption spectra extend to ∼28 GPa, while resistivi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::161cf108c8907166a395eed1232b887f
https://doi.org/10.1016/s0022-3697(02)00179-8
https://doi.org/10.1016/s0022-3697(02)00179-8
Autor:
Steven G. Louie, Michel Côté, Phillip Cervantes, Quentin Williams, Marvin L. Cohen, Michael Rohlfing
Publikováno v:
Physical Review B. 58:9793-9800
The indirect energy gaps of CsCl-structured BaS and CaSe are measured at high pressures using absorption spectroscopy to pressures of 41 and 53 GPa, respectively. Band-structure calculations using density-functional theory and quasiparticle correctio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2802c1a84d7b7ea4826a3084b22b5be4
https://doi.org/10.1103/physrevb.58.9793
https://doi.org/10.1103/physrevb.58.9793
Publikováno v:
Solid State Communications. 139:215-217
The electronic band gap of SrSe, in the CsCl-stuctured phase, was measured to 42 GPa via optical absorption studies. The indirect electronic band gap was found to close monotonically with pressure for the range of pressures studied. The change in ban
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e94bf1a8ba28c5e8c1f632e253bdb67
https://doi.org/10.1016/j.ssc.2006.06.006
https://doi.org/10.1016/j.ssc.2006.06.006
Publikováno v:
Physical Review B. 54:17585-17590
The indirect energy gaps of NaCl-structured CdS and CdSe are measured using absorption spectroscopy to approximately 55 and 42 GPa, respectively. The gaps shift linearly with pressure and their pressure dependence generally is in good agreement with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78100685fabfacd45f605b50b399435b
https://doi.org/10.1103/physrevb.54.17585
https://doi.org/10.1103/physrevb.54.17585
Publikováno v:
Physical Review B. 49:3432-3442
We present K-edge XAFS (X-Ray Absorption Fine Structure) data for various concentrations of Pr in Y$_{1- x}$Pr$_{x}$Ba$_{2}$Cu$_{3}$O$_{7}$. The character of the Pr K-edge XAFS data indicate that most of the Pr substitutes onto the Y site and is well
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::504da3b1bc27ba67fb58b27afc20d895
https://doi.org/10.1103/physrevb.49.3432
https://doi.org/10.1103/physrevb.49.3432
Publikováno v:
MRS Proceedings. 307
In constrast to other rare earths, replacement of Y with Pr in the high Tc superconductor YBa2Cu3O7 has a pronounced effect on Tc, with Tc going to zero at ≈ 55% Pr. We present Pr XAFS K-edge data for various concentrations of Pr in Y1−xPrxBa2Cu3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4faec22a7ae7ea37adaeccb4fbbe7363
https://doi.org/10.1557/proc-307-117
https://doi.org/10.1557/proc-307-117
Publikováno v:
Physica C: Superconductivity. :1033-1034
We present K-edge x-ray absorption fine structure (XAFS) data for and the local structure of several Y 1− x Pr x Ba 2 Cu 3 O 7 alloys. Most of the Pr substitutes onto well ordered Y sites. The amplitude of the first Pr-O peak is greatly reduced whe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c7ac44651a16f4f2ad61030fa6c2c9a
https://doi.org/10.1016/0921-4534(94)91741-8
https://doi.org/10.1016/0921-4534(94)91741-8
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