Magnetic Compton Scattering on Sr-Doped LaCoO<sub>3</sub>
We carried out magnetic Compton scattering experiments on the Sr-doped perovskite cobaltite La<sub>1−<i>x</i></sub>Sr<i>x</i>CoO<sub>3</sub> for the paramagnetic insulator (<i>x</i> = 0.1) and the ferromagnetic metallic (<i>x</i>...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-05-01
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| Series: | Crystals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4352/11/6/577 |
| Summary: | We carried out magnetic Compton scattering experiments on the Sr-doped perovskite cobaltite La<sub>1−<i>x</i></sub>Sr<i>x</i>CoO<sub>3</sub> for the paramagnetic insulator (<i>x</i> = 0.1) and the ferromagnetic metallic (<i>x</i> = 0.3) phases in order to investigate the electron-orbital state relevant to its unusual magnetic and electronic transport properties. The ratio of the orbital moments to the spin moments (<i>M</i><sub>orbital</sub>/<i>M</i><sub>spin</sub>) is less than 1/10 at low temperatures for <i>x</i> = 0.3, whereas <i>M</i><sub>orbital</sub>/<i>M</i><sub>spin</sub> is about 0.4 almost independent of temperature for <i>x</i> = 0.1. The shape of <i>J<sub>mag</sub></i>(<i>p<sub>z</sub></i>) shows no apparent difference between the paramagnetic insulator and the ferromagnetic metallic phases. |
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| ISSN: | 2073-4352 |