| Issue |
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-2139 - C8-2140 | |
| DOI | https://doi.org/10.1051/jphyscol:19888957 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-2139-C8-2140
DOI: 10.1051/jphyscol:19888957
Laboratoire Louis Néel, C.N.R.S., 166 X, 38042 Grenoble Cedex, France
J. Phys. Colloques 49 (1988) C8-2139-C8-2140
DOI: 10.1051/jphyscol:19888957
ARE THE NEEL TEMPERATURE ( TN) AND THE SUPERCONDUCTING TRANSITION TEMPERATURE (Tc) SIMPLY RELATED IN La2CuxO4-y UNDER PRESSURE ?
B. Barbara, J. Beille, A. Draperi, H. Dupendant, G. Fillion et M. MaederLaboratoire Louis Néel, C.N.R.S., 166 X, 38042 Grenoble Cedex, France
Abstract
We have investigated under high pressure a sintered La2Cu1.02O4-y sample which exhibits bulk superconductivity below Tc ≈ 37 K and antiferromagnetic ordering below TN ≈ 240 K. dTN / dp has been determined using d.c. susceptibility and resistivity measurements under pressure. dTc / dp and dTN / dp are found to have opposit signs. This experimental result is confronted to the theory.