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4f Electron effects in high Tc RBa2Cu3O7 − δ (R = rare earth) superconductors

Autor: M. B. Maple, R.R. Hake, C. L. Seaman, H. Zhou, John J. Neumeier, J. M. Ferreira, Bo Wha Lee, K. N. Yang

Publikováno v: Journal of the Less Common Metals. 149:405-425

Experiments on high TcRBa2Cu3O7 − δ (R = rare earth; δ ≈ 0.1) compounds have revealed a variety of interesting effects that involve the 4f electrons of the R ions. Schottky anomalies due to the partial lifting of the degeneracy of the Hund's ru

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b814da0290b56a2fdbeb4f796de2533
https://doi.org/10.1016/0022-5088(89)90517-1

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RBa2Cu3O7−δ (R = rare earth) high-Tc magnetic superconductors

Autor: M.S. Torikachvili, K. N. Yang, Y. Dalichaouch, H. Zhou, R.P. Guertin, J.M. Ferreira, M.V. Kuric, Bo Wha Lee, R.R. Hake, M. B. Maple, John J. Neumeier

Publikováno v: Physica B+C. 148:155-162

Electrical resistivity p, magnetization M, and specific heat C measurements have been made on polycrystalline RBa2Cu3O7–δ compounds (R = Y or a rare earth element) which, except for R = Ce, Pr and Tb, exhibit superconductivity with TC ≈ 90K. Mea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::713988b1c5690fc64701e72269cd7e16
https://doi.org/10.1016/0378-4363(87)90181-1

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X-ray and density measurements on 'early-late' transition metal glasses: consistency with 'soft-sphere' structural models

Autor: M.G. Karkut, R.R. Hake

Publikováno v: Journal of Non-Crystalline Solids. :595-600

X-ray measurements on glassy alloys (TE)1−x(TL)x formed between transition metals occurring “early” (TE) and “late” (TL) in the Periodic Table show that (a) the first-broad-peak scattering vector Qp increases approximately linearly with ato

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::efa420acb41ec9985032cab797bd8d5a
https://doi.org/10.1016/0022-3093(84)90611-2

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Normal and superconducting state magnetic properties of RBa2Cu3O7−δ compounds

Autor: M. B. Maple, R.R. Hake, K. N. Yang, Bo Wha Lee, Y. Dalichaouch, Robert P. Guertin, M.V. Kuric, H. Zhou, C. L. Seaman

Publikováno v: Physica C: Superconductivity. 152:321-328

Magnetic properties have been investigated for polycrystalline samples of RBa 2 Cu 2 O 7−δ with R = Y and all the rare earth elements except Pm. The normal-state magnetic susceptibilities of these compounds can be described as χ ( T )= χ 0 + Nμ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2e3a94d1a52717192d183386f2aa5561
https://doi.org/10.1016/0921-4534(88)90090-1

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Upper critical magnetic field measurements in RBa2Cu3O7−δ (R=rareearth) compounds

Autor: M. B. Maple, R.R. Hake, John J. Neumeier, Robert P. Guertin, K. N. Yang, M.V. Kuric, Y. Dalichaouch, Bo Wha Lee, M.S. Torikachvili

Publikováno v: Physica C: Superconductivity. 152:293-301

Upper critical magnetic field initial slopes -d H c2 /d T , have been measured for RBa 2 Cu 3 O 7−δ compounds where R=Y , Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, and Lu. If H at the resistive midpoint is defined as H c2 , then -d H c2 /d T falls withi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd8ef28f7278a0aa4a0374d6070dce3c
https://doi.org/10.1016/0921-4534(88)90087-1

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High-magnetic-field magnetization and magnetoresistance of a transition-metal-base spin glass: Zr-Mn

Autor: I.B. Lin, R.R. Hake, J.W. Lue, H. Nadler, H.C. Jones, A. G. Montgomery

Publikováno v: Physical Review B. 16:1177-1196

The magnetization M and electrical resistivity rho have been measured at 0 T/sub 0/, high H >> k/sub B/T/g..mu../sub B/, Larkin-Khmel'nitskii (LK) prediction ..delta..M (LK) = ..delta..M/sub s/(1more » - H/sub 0//H) (..delta..M/sub s/ is the impurit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cbc3ce2e27fa7779d2e6fc13f400aeed
https://doi.org/10.1103/physrevb.16.1177

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Effect of pressure on the superconducting transition of lead

Autor: D.E. Mapother, R.R. Hake

Publikováno v: Journal of Physics and Chemistry of Solids. 1:199-208

The effect of hydrostatic pressures up to 300 atmospheres on the critical magnetic field of superconducting lead has been measured at a temperature slightly below the critical temperature. The pressures were applied using helium gas as the pressure t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::940d50d117924765d18e01056b69bdf5
https://doi.org/10.1016/0022-3697(56)90028-2

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