Artículo
Jorge, G.A.; Jaime, M.; Civale, L.; Batista, C.D.; Zink, B.L.; Hellman, F.; Khaykovich, B.; Kastner, M.A.; Lee, Y.S.; Birgeneau, R.J. "Thermodynamic properties of excess-oxygen-doped La2CuO 4.11 near a simultaneous transition to superconductivity and long-range magnetic order" (2004) Physical Review B - Condensed Matter and Materials Physics. 69(17):174506-1-174506-8
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Abstract:
We have measured the specific heat and magnetization versus temperature in a single crystal sample of superconducting La2CuO4.11 and in a sample of the same material after removing the excess oxygen, in magnetic fields up to 15 T. Using the deoxygenated sample to subtract the phonon contribution, we find a broad peak in the specific heat, centered at 50 K. This excess specific heat is attributed to fluctuations of the Cu spins possibly enhanced by an interplay with the charge degrees of freedom, and appears to be independent of magnetic field, up to 15 T. Near the superconducting transition Tc(H = O) = 43 K, we find a sharp feature that is strongly suppressed when the magnetic field is applied parallel to the crystallographic c axis. A model for three-dimensional vortex fluctuations is used to scale magnetization measured at several magnetic fields. When the magnetic field is applied perpendicular to the c axis, the only observed effect is a slight shift in the superconducting transition temperature.
Registro:
| Documento: | Artículo |
| Título: | Thermodynamic properties of excess-oxygen-doped La2CuO 4.11 near a simultaneous transition to superconductivity and long-range magnetic order |
| Autor: | Jorge, G.A.; Jaime, M.; Civale, L.; Batista, C.D.; Zink, B.L.; Hellman, F.; Khaykovich, B.; Kastner, M.A.; Lee, Y.S.; Birgeneau, R.J. |
| Filiación: | Natl. High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, NM 87545, United States Departamento de Física, Universidad de Buenos Aires, Pabellon 1 Cd. Universitaria (1428), Buenos Aires, Argentina Superconductivity Technology Center, Los Alamos National Laboratory, Los Alamos, NM 87545, United States Center for Non-Linear Studies, Los Alamos National Laboratory, Los Alamos, NM 87545, United States Department of Physics, University of California, San Diego, San Diego, CA 92093, United States Department of Physics, Ctr. for Mat. Sci. and Engineering, Massachusetts Inst. of Technology, Cambridge, MA 02139, United States Department of Physics, University of Toronto, Toronto, Ont. M5S 1A7, Canada |
| Palabras clave: | copper complex; lanthanum; oxygen; article; crystal; deoxygenation; heat; magnetic field; magnetism; mathematical model; phase transition; superconductor; temperature dependence; thermodynamics |
| Año: | 2004 |
| Volumen: | 69 |
| Número: | 17 |
| Página de inicio: | 174506 |
| Página de fin: | 1-174506-8 |
| DOI: | http://dx.doi.org/10.1103/PhysRevB.69.174506 |
| Título revista: | Physical Review B - Condensed Matter and Materials Physics |
| Título revista abreviado: | Phys. Rev. B Condens. Matter Mater. Phys. |
| ISSN: | 01631829 |
| CODEN: | PRBMD |
| CAS: | lanthanum, 16096-89-2, 7439-91-0; oxygen, 7782-44-7 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01631829_v69_n17_p174506_Jorge |
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Citas:
---------- APA ----------
Jorge, G.A., Jaime, M., Civale, L., Batista, C.D., Zink, B.L., Hellman, F., Khaykovich, B.,..., Birgeneau, R.J. (2004) . Thermodynamic properties of excess-oxygen-doped La2CuO 4.11 near a simultaneous transition to superconductivity and long-range magnetic order. Physical Review B - Condensed Matter and Materials Physics, 69(17), 174506-1-174506-8.http://dx.doi.org/10.1103/PhysRevB.69.174506
---------- CHICAGO ----------
Jorge, G.A., Jaime, M., Civale, L., Batista, C.D., Zink, B.L., Hellman, F., et al. "Thermodynamic properties of excess-oxygen-doped La2CuO 4.11 near a simultaneous transition to superconductivity and long-range magnetic order" . Physical Review B - Condensed Matter and Materials Physics 69, no. 17 (2004) : 174506-1-174506-8.http://dx.doi.org/10.1103/PhysRevB.69.174506
---------- MLA ----------
Jorge, G.A., Jaime, M., Civale, L., Batista, C.D., Zink, B.L., Hellman, F., et al. "Thermodynamic properties of excess-oxygen-doped La2CuO 4.11 near a simultaneous transition to superconductivity and long-range magnetic order" . Physical Review B - Condensed Matter and Materials Physics, vol. 69, no. 17, 2004, pp. 174506-1-174506-8.http://dx.doi.org/10.1103/PhysRevB.69.174506
---------- VANCOUVER ----------
Jorge, G.A., Jaime, M., Civale, L., Batista, C.D., Zink, B.L., Hellman, F., et al. Thermodynamic properties of excess-oxygen-doped La2CuO 4.11 near a simultaneous transition to superconductivity and long-range magnetic order. Phys. Rev. B Condens. Matter Mater. Phys. 2004;69(17):174506-1-174506-8.http://dx.doi.org/10.1103/PhysRevB.69.174506
