2Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, 70569 Stuttgart, Germany
3Institut Néel, CNRS, Université Joseph Fourier, BP 166, 38042 Grenoble Cedex 9, France
4Russian Research Center «Kurchatov Institute», 123182 Moscow, Russia
5Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, Russia
6Service de Physique Statistique, Magnétisme, et Supraconductivité, INAC, CEA, 38054 Grenoble Cedex 9, France
7Université Joseph Fourier, BP 53, 38041 Grenoble Cedex 9, France pos Анотація:
Received March 31, 2010
We present the Condon domain phase diagram for a silver single crystal measured in magnetic fields up to 28 T
and temperatures down to 1.3 K. A standard ac method with a pickup coil system is used at low frequency for the measurements of the de Haas–van Alphen effect (dHvA). The transition point from the state of homogeneous
magnetization to the inhomogeneous Condon domain state (CDS) is found as the point where a small irreversibility
in the dHvA magnetization arises, as manifested by an extremely nonlinear response in the pickup voltage showing threshold character. The third harmonic content in the ac response is used to determine with high precision the CDS phase boundary. The experimentally determined Condon domain phase diagram is in good agreement with the theoretical prediction calculated by the standard Lifshitz–Kosevich formula.
PACS: 75.45.+j Macroscopic quantum phenomena in magnetic systems; PACS: 71.70.Di Landau levels; PACS: 75.60.–d Domain effects, magnetization curves, and hysteresis.