Suppression of ferromagnetism inCeSi1.81under temperature and pressure
| Autor: | Günter Behr, Christian Pfleiderer, Hilbert von Löhneysen, S. Drotziger, Wolfgang Löser, M. Uhlarz, D. Souptel |
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| Rok vydání: | 2006 |
| Předmět: |
Physics
Condensed matter physics Magnetic order Condensed Matter Physics Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Magnetization Hysteresis Temperature and pressure Ferromagnetism Quantum critical point Moment (physics) Condensed Matter::Strongly Correlated Electrons Ambient pressure |
| Zdroj: | Physical Review B. 73 |
| ISSN: | 1550-235X 1098-0121 |
| Popis: | We have studied the pressure dependence of the magnetization of single crystalline CeSi1.81. At ambient pressure, ferromagnetism develops below TC=9.5K. Below $\sim$5K an additional shoulder in low-field hysteresis loops and a metamagnetic crossover around 4T suggest the appearance of an additional magnetic modulation to the ferromagnetic state. The suppression of the magnetic order in CeSi1.81 as function of temperature at ambient pressure and as function of pressure at low temperature are in remarkable qualitative agreement. The continuous suppression of the ordered moment at pc$\approx$13.1kbar suggests the existence of a ferromagnetic quantum critical point in this material. |
| Databáze: | OpenAIRE |
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