Spontaneous magnetization and resistivity steps in the bilayered manganite(La0.5Nd0.5)1.2Sr1.8Mn2O7
| Autor: | Da-qian Liao, Ren-Fu Yang, Young Sun, Zhao-Hua Cheng, Qing-an Li |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Magnetic anisotropy
Magnetization Materials science Condensed matter physics Electrical resistivity and conductivity Condensed Matter::Strongly Correlated Electrons Condensed Matter Physics Manganite Critical field Single crystal Spontaneous magnetization Electronic Optical and Magnetic Materials Magnetic field |
| Zdroj: | Physical Review B. 74 |
| ISSN: | 1550-235X 1098-0121 |
| DOI: | 10.1103/physrevb.74.174434 |
| Popis: | We report a detailed study of steplike magnetization and resistivity jumps in a bilayered (La0.5Nd0.5)(1.2)Sr1.8Mn2O7 single crystal. The sample exhibits very sharp metamagnetic transitions at low temperature when the magnetic field is applied either in an ab plane or along the c axis, which causes huge magnetization steps. The critical field depends on the cooling magnetic field as well as the sweep rate of the magnetic field. Meanwhile, the evolution with time of the magnetization exhibits a spontaneous step when both the temperature and magnetic field are constant. Similar steplike behaviors are also observed in resistivity. These results suggest that a martensiticlike transformation could happen in bilayered manganites. |
| Databáze: | OpenAIRE |
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