Reversed exchange-bias effect associated with magnetization reversal in the weak ferrimagnet LuF e0.5 C r0.5 O3
| Autor: | Fita, I., Markovich, V., Moskvin, A. S., Wisniewski, A., Puzniak, R., Iwanowski, P., Martin, C., Maignan, A., Carbonio, Raul Ernesto, Gutowska, M. U., Szewczyk, A., Gorodetsky, G. |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
PEROVSKITE
NEGATIVE MAGNETIZATION Ciencias Físicas BINARY ALLOYS ANTIFERROMAGNET NON-MONOTONIC DEPENDENCE MAGNETIZATION REVERSAL EXCHANGE-BIAS MAGNETIZATION purl.org/becyt/ford/1.3 [https] LUTETIUM COMPOUNDS MAGNETIC MATERIALS COOLING FIELDS purl.org/becyt/ford/1 [https] FERRIMAGNETISM MAGNETIC MOMENTS FIELD-COOLED MAGNETIZATIONS UNUSUAL BEHAVIORS ANTIPARALLEL ORIENTATIONS DZYALOSHINSKII-MORIYA INTERACTION CIENCIAS NATURALES Y EXACTAS EXCHANGE BIAS EFFECTS Física de los Materiales Condensados |
| Zdroj: | Phys. Rev. B Physical Review B CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| DOI: | 10.1103/PhysRevB.97.104416&partnerID=40&md5=4de311010a8220a52ae3855dfda6626e |
| Popis: | The exchange-bias (EB) effect with sign reversal was found in LuFe0.5Cr0.5O3 ferrite-chromite, which is a weak ferrimagnet below TN=265K, exhibiting antiparallel orientation of the ferromagnetic (FM) moments of the Fe and Cr sublattices due to opposite sign of the Fe-Cr Dzyaloshinskii vector, as compared to that of the Fe-Fe and Cr-Cr. The weak FM moments of the studied compound compensate each other at temperature Tcomp=230K, leading to the net magnetic moment reversal and to observed negative magnetization, at moderate applied fields, below Tcomp. Both vertical and horizontal shifts from the origin were gotten in the field-cooled magnetization hysteresis loops. The EB sign was found to be positive below Tcomp and negative above Tcomp, with nonmonotonic dependence on cooling field Hcool. It sharply increases at small values of magnetic fields up to Hcool∼1kOe, then remains almost unchanged in the range 1-30 kOe and strongly decreases with further increase of Hcool. This unusual behavior results from the competition of various Dzyaloshinskii-Moriya interactions between Fe3+ and Cr3+ ions. Fil: Fita, I.. Polish Academy of Sciences; Argentina Fil: Markovich, V.. Ben Gurion University of the Negev; Israel Fil: Moskvin, A. S.. Ural Federal University; Rusia Fil: Wisniewski, A.. Polish Academy of Sciences; Argentina Fil: Puzniak, R.. Polish Academy of Sciences; Argentina Fil: Iwanowski, P.. Polish Academy of Sciences; Argentina Fil: Martin, C.. Laboratoire CRISMAT; Francia Fil: Maignan, A.. Laboratoire CRISMAT; Francia Fil: Carbonio, Raul Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina Fil: Gutowska, M. U.. Polish Academy of Sciences; Argentina Fil: Szewczyk, A.. Polish Academy of Sciences; Argentina Fil: Gorodetsky, G.. Ben Gurion University of the Negev; Israel |
| Databáze: | OpenAIRE |
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