Zobrazeno 1 - 10
of 19
pro vyhledávání: '"L. Donnevert"'
Autor:
R. Borth, C. Geibel, O. Brosch, B. Buschinger, S. Mederle, Frank Steglich, L. Donnevert, M. Grosche, O. Trovarelli, G. Sparn
Publikováno v:
Physical Review B. 60:1136-1143
The low-temperature properties of a family of ytterbium-based compounds with the composition ${\mathrm{Yb}}_{2}{T}_{3}{X}_{9}$ $(T=\mathrm{Rh}, \mathrm{Ir}; X=\mathrm{Al}, \mathrm{Ga})$ are studied by means of magnetic susceptibility, electrical resi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9542a094b7b80799288aa5eecdb7e56
https://doi.org/10.1103/physrevb.60.1136
https://doi.org/10.1103/physrevb.60.1136
Autor:
C. Langhammer, L. Donnevert, Frank Steglich, Philipp Gegenwart, Wolf Assmus, A. Link, C. Geibel, G. Sparn, Michael Lang, R. Horn, R. Helfrich
Publikováno v:
Physical Review Letters. 81:1501-1504
We report resistivity, $\ensuremath{\rho}(T)$, and specific-heat, $C(T)$, results on near stoichiometric $\mathrm{CeCu}{}_{2}{\mathrm{Si}}_{2}$ samples, in the vicinity of a quantum critical point (QCP). The latter is defined by ${T}_{A}\ensuremath{\
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ce914cacd5bc6228ad171d924827b6e
https://doi.org/10.1103/physrevlett.81.1501
https://doi.org/10.1103/physrevlett.81.1501
Autor:
P. Gegenwart, A. Link, F. Laube, R. Horn, Frank Steglich, S. Thomas, C. Geibel, P. Hellmann, G. Sparn, B. Buschinger, L. Donnevert
Publikováno v:
THE REVIEW OF HIGH PRESSURE SCIENCE AND TECHNOLOGY. 7:431-436
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e98ccb864a4a1d4a2621e541b3cc84e7
https://doi.org/10.4131/jshpreview.7.431
https://doi.org/10.4131/jshpreview.7.431
Autor:
Frank Steglich, L. Donnevert, Michael Lang, G. Sparn, A. Link, F. Laube, K. Heuser, M. Deppe, C. Geibel, P. Hellmann, S. Thomas, M. Köppen
Publikováno v:
Physica B: Condensed Matter. :317-320
We present a reinvestigation of the complex magnetic phase diagram of the heavy-fermion system Ce(Cu1-xNix)2Ge2 by employing measurements of the specific heat, C(T), and thermal expansion, α(T), on high-quality single crystals with x = 0, 0.02, 0.05
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ed3805e141b91f1ddeafc35b2821169
https://doi.org/10.1016/s0921-4526(96)00701-6
https://doi.org/10.1016/s0921-4526(96)00701-6
Autor:
L. Donnevert, B. Buschinger, R. Helfrich, C. Langhammer, Philipp Gegenwart, M. Lohmann, C. Geibel, Frank Steglich, G. Sparn, A. Link, S. Thomas, P. Hellmann, Michael Lang, Wolf Assmus
Publikováno v:
Journal of Physics: Condensed Matter. 8:9909-9921
We present results of low-temperature calorimetric and resistive measurements on the isostructural heavy-fermion compounds and . `Non-Fermi-liquid' effects are established which suggest the nearness of an antiferromagnetic quantum critical point (QCP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b512ed7680f32b93759e6d54976d34fb
https://doi.org/10.1088/0953-8984/8/48/016
https://doi.org/10.1088/0953-8984/8/48/016
Autor:
P. Hellmann, G. Sparn, G. R. Stewart, Philipp Gegenwart, C. Langhammer, Wolf Assmus, Christoph Geibel, R. Helfrich, Michael Lang, Akira Ochiai, Frank Steglich, L. Donnevert
Publikováno v:
Zeitschrift für Physik B Condensed Matter. 103:235-242
We present the results of specific-heat and resistivity measurements as a function of temperature, magnetic field and hydrostatic pressure on the Kondo lattice CeNi2Ge2, the heavy-fermion superconductors CeCu2Si2 and UBe13 as well as the low-carrier-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3838502683e8e3c362a61dd27ef95d0
https://doi.org/10.1007/s002570050366
https://doi.org/10.1007/s002570050366
Autor:
R. Helfrich, L. Donnevert, G. R. Stewart, C. Langhammer, C. Geibel, A. Link, F. Kromer, G. Sparn, Philipp Gegenwart, J. S. Kim, Frank Steglich, Michael Lang
Non-Fermi-liquid (NFL) temperature dependences of both the resistivity ρ( T ) and the Sommerfeld coefficient γ( T ) are observed for normal-state CeCu 2 Si 2 and UBe 13 . For the former compound, the NFL effects are related to the suppression (via
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef1433dcc7d3e899c79d0b35143a003b
https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/86818
https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/86818
Publikováno v:
Journal of Magnetism and Magnetic Materials. :375-376
In the alloy system CeCu 2 (Si 1− x Ge x ) 2 phase A, i.e., antiferromagnetic order at x > 0 , evolves from a heavy-fermion state at x = 0 , where T A → 0 and non-Fermi-liquid effects are observed. Here, we present the results of specific-heat me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b05ee03e49a7ee1c3d4e6523d33c952a
https://doi.org/10.1016/s0304-8853(97)00694-x
https://doi.org/10.1016/s0304-8853(97)00694-x
Publikováno v:
Journal of Magnetism and Magnetic Materials. :401-402
We report measurements of the resistivity, performed as a function of temperature, magnetic field and hydrostatic pressure on polycrystalline samples of A-type CeCu 2 Si 2 and of CeCu 2 (Si 0.9 Ge 0.1 ) 2 , two compounds close to an antiferromagnetic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f062f90a1f1c2ae3c3afff62db44300f
https://doi.org/10.1016/s0304-8853(97)00692-6
https://doi.org/10.1016/s0304-8853(97)00692-6
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