Magnetic and Electrical Properties of Hg1–x–MnxFeyTe1–zSz Crystals
| Autor: | Eduard V. Maistruk |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Magnetoresistance Condensed matter physics Magnetic moment General Physics and Astronomy Giant magnetoresistance 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Magnetic field Condensed Matter::Materials Science Ferromagnetism 0103 physical sciences Cluster (physics) Antiferromagnetism Condensed Matter::Strongly Correlated Electrons Charge carrier 0210 nano-technology |
| Zdroj: | Russian Physics Journal. 61:1435-1442 |
| ISSN: | 1573-9228 1064-8887 |
| Popis: | Electrical and magnetic properties of the semimagnetic semiconductor Hg1–x–yMnxFeyTe1–zSz solid solutions were studied in the ranges of temperatures 77–320 K and magnetic fields 0.25–6 kOe. In the crystals under study, the effect of giant magnetoresistance was observed that reached 75% at low temperatures. This is due to the fact that charge carriers that participate in the current transfer interact with a magnetized ferromagnetic cluster subsystem (Fe–Fe–Fe) and become spin-polarized. It is these spin-polarized charge carriers that are strongly scattered on antiferromagnetic Mn–S–Mn–S and Mn–Te–Mn–Te clusters, since the magnetic moments inside the clusters and the resulting magnetic moments of these clusters are randomly oriented. |
| Databáze: | OpenAIRE |
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