| Autor: |
Pfuner, F, Degiorgi, L, Ott, HR, Bianchi, A, Fisk, Z |
| Jazyk: |
angličtina |
| Rok vydání: |
2008 |
| Zdroj: |
Pfuner, F; Degiorgi, L; Ott, HR; Bianchi, A; & Fisk, Z. (2008). Magneto-optical behavior of EuIn2 P2. Physical Review B-Condensed Matter and Materials Physics, 77(2). doi: 10.1103/PhysRevB.77.024417. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/7qc083wb |
| DOI: |
10.1103/PhysRevB.77.024417. |
| Popis: |
We report results of a magneto-optical investigation of the Zintl-phase compound EuIn2 P2. The compound orders magnetically at TC =24 K and exhibits concomitant large magnetoresistance effects. For T≤50 K and increasing magnetic fields we observe a transfer of spectral weight in σ1 (ω) from energies above 1 eV into the low-energy metallic component as well as into a midinfrared signal centered at about 600 cm-1. This latter absorption is reminiscent to what has been seen in a large variety of so-called Kondo materials and ascribed to excitations across the hybridization gap. The observed gain of Drude weight upon increasing magnetic field suggests an enhancement of the itinerant charge-carrier concentration due to the increasing magnetization, a phenomenon that was previously observed in other compounds that exhibit colossal magnetoresistive effects. © 2008 The American Physical Society. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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