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| Content Provider | Springer Nature Link |
|---|---|
| Author | Nasu, Saburo |
| Copyright Year | 2000 |
| Abstract | A high-pressure 57Fe Mössbauer study of SrFeO3 up to 74 GPa has been performed with diamond-anvil-cell (DAC) using synchrotron radiation and a radioactive point source of 57Co in Rh. SrFeO3 is known as a typical cubic perovskite with a high-valence state of Fe4+ and shows metallic conductivity at 0.1 MPa down to 4.2 K. Applying an external high pressure, SrFeO3 has not shown any structural transformation up to 74 GPa keeping an Fe4+ state but the Néel temperature increases up to 300 K at 18 GPa. The external high pressure may induce the ferromagnetism in SrFeO3 by a decrease of the interatomic distance of Fe or an increase of the d-band width. 57Fe Mössbauer measurements under externally applied longitudinal magnetic field using radioactive 57Co in Rh source and also nuclear forward scattering measurements with a linearly polarized synchrotron radiation under external magnetic field indicate the existence of the pressure induced ferromagnetism in SrFeO3. In this work we compare high-pressure Mössbauer spectroscopy using synchrotron and radioactive sources and summarize the advantages and disadvantages of each method. |
| Starting Page | 101 |
| Ending Page | 113 |
| Page Count | 13 |
| File Format | |
| ISSN | 03043843 |
| Journal | Hyperfine Interactions |
| Volume Number | 128 |
| Issue Number | 1-3 |
| e-ISSN | 15729540 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2000-01-01 |
| Publisher Place | Dordrecht |
| Access Restriction | Subscribed |
| Subject Keyword | Nuclear Physics, Heavy Ions, Hadrons Atoms, Molecules, Clusters and Plasmas Condensed Matter Surfaces and Interfaces, Thin Films |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nuclear and High Energy Physics Atomic and Molecular Physics, and Optics Physical and Theoretical Chemistry Condensed Matter Physics |
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