Steady State and Dynamics of Joule Heating in Magnetic Tunnel Junctions Observed via the Temperature Dependence of RKKY Coupling
| Autor: | C. Portemont, I. L. Prejbeanu, Antoine Chavent, Ricardo C. Sousa, Clarisse Ducruet, Laurent Vila, Jérémy Alvarez-Hérault, Bernard Dieny |
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| Přispěvatelé: | SPINtronique et TEchnologie des Composants (SPINTEC), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CROCUS Technology, ANR-13-NANO-0010,EXCALYB,Cellules MRAM sub-20nm et intégration CMOS de circuits hybrides(2013) |
| Rok vydání: | 2016 |
| Předmět: |
Coupling
Magnetoresistive random-access memory Condensed Matter - Materials Science Materials science Steady state Condensed matter physics Magnetic moment Spintronics General Physics and Astronomy Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences 02 engineering and technology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology 01 natural sciences 3. Good health Tunnel magnetoresistance 0103 physical sciences Torque [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] 010306 general physics 0210 nano-technology Joule heating ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Physical Review Applied Physical Review Applied, American Physical Society, 2016, 6 (3), ⟨10.1103/PhysRevApplied.6.034003⟩ Physical Review Applied, 2016, 6 (3), ⟨10.1103/PhysRevApplied.6.034003⟩ |
| ISSN: | 2331-7019 |
| DOI: | 10.48550/arxiv.1609.08385 |
| Popis: | Understanding quantitatively the heating dynamics in magnetic tunnel junctions (MTJ) submitted to current pulses is very important in the context of spin-transfer-torque magnetic random access memory development. Here we provide a method to probe the heating of MTJ using the RKKY coupling of a synthetic ferrimagnetic storage layer as a thermal sensor. The temperature increase versus applied bias voltage is measured thanks to the decrease of the spin-flop field with temperature. This method allows distinguishing spin transfer torque (STT) effects from the influence of temperature on the switching field. The heating dynamics is then studied in real-time by probing the conductance variation due to spin-flop rotation during heating. This approach provides a new method for measuring fast heating in spintronic devices, particularly magnetic random access memory (MRAM) using thermally assisted or spin transfer torque writing. Comment: 6 pages, 9 figures |
| Databáze: | OpenAIRE |
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