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A hysteresis loop is observed for the first time in the de Haas-van Alphen (dHvA) effect of beryllium at low temperatures and quantizing magnetic field applied parallel to the hexagonal axis of the single crystal. The irreversible behavior of the magnetization occurs at the paramagnetic part of the dHvA period in conditions of Condon domain formation arising by strong enough dHvA amplitude. The resulting extremely nonlinear response to a very small modulation field offers the possibility to find in a simple way the Condon domain phase diagram. From a harmonic analysis, the shape and size of the hysteresis loop is constructed. 相似文献
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J. Gizon B. M. Nyakó J. Timár A. Gizon L. Zolnai A. J. Boston Gh. Câta-Danil J. Genevey D. T. Joss N. J. O’Brien C. M. Parry E. S. Paul D. Santos A. T. Semple A. V. Afanasjev I. Ragnarsson 《Acta Physica Hungarica A》1997,6(1-4):265-268
The level structure of102Pd has been investigated using the Eurogam Phase2 array. Termination of rotational bands has been observed atI=28? andI=32+, and tentatively atI=38+ andI=42+. Three other bands evolving towards termination have also been identified. These terminating bands are explained in terms of valence-space and core-excited configurations. 相似文献
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J. Timár J. Gizon A. Gizon L. Zolnai B.M. Nyakó G. Căta-Danil D. Bucurescu A.J. Boston D.T. Joss E.S. Paul A.T. Semple N.J. O'Brien C.M. Parry A.V. Afanasjev I. Ragnarsson 《The European Physical Journal A - Hadrons and Nuclei》1999,4(1):11-15
High spin states of 101Rh have been populated using the reaction 70Zn+36S at 130 MeV. γ-rays were detected with the EUROGAM2 array. New high-spin bands have been observed in this nucleus up to 45/2−, 57/2− and 65/2+ states. They have been interpreted using the Nilsson-Strutinsky cranking formalism as terminating configurations. Two of
the bands were observed up to the predicted terminating states which are built up from g9/2 protons as well as d5/2, g7/2 and h11/2 neutrons relative to a 90Zr core.
Received: 30 October 1998 相似文献