WFRF:(Capriata Corrado Carlo Maria)
Sökning: WFRF:(Capriata Corrado Carlo Maria) > Energy Barriers for...
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03526nam a2200445 4500 | |
| 001 | oai:DiVA.org:kth-336767 | |
| 003 | SwePub | |
| 008 | 230919s2023 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3367672 URI |
| 024 | 7 | a https://doi.org/10.48550/arXiv.2305.095582 DOI |
| 040 | a (SwePub)kth | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a vet2 swepub-contenttype |
| 072 | 7 | a ovr2 swepub-publicationtype |
| 100 | 1 | a Capriata, Corrado Carlo Mariau KTH,Elektronik och inbyggda system,Center for Quantum Phenomena, Department of Physics, New York University, New York, NY 10003, USA4 aut0 (Swepub:kth)u1alfp0u |
| 245 | 1 0 | a Energy Barriers for Thermally Activated Magnetization Reversal in Perpendicularly Magnetized Nanodisks in a Transverse Field |
| 264 | 1 | c 2023 |
| 338 | a electronic2 rdacarrier | |
| 500 | a Under review process in Physical Review Applied by the American Physical SocietyQC 20231102 | |
| 520 | a Thermally-induced transitions between bistable magnetic states of magnetic tunnel junctions (MTJ) are of interest for generating random bitstreams and for applications in stochastic computing. An applied field transverse to the easy axis of a perpendicularly magnetized MTJ (pMTJ) can lower the energy barrier (Eb) to these transitions leading to faster fluctuations. In this study, we present analytical and numerical calculations of Eb considering both coherent (macrospin) reversal and non-uniform wall-mediated magnetization reversal for a selection of nanodisk diameters and applied fields. Non-uniform reversal processes dominate for larger diameters, and our numerical calculations of Eb using the String method show that the transition state has a sigmoidal magnetization profile. The latter can be described with an analytical expression that depends on only one spatial dimension, parallel to the applied field, which is also the preferred direction of profile motion during reversal. Our results provide nanodisk energy barriers as a function of the transverse field, nanodisk diameter, and material characteristics, which are useful for designing stochastic bitstreams. | |
| 650 | 7 | a TEKNIK OCH TEKNOLOGIERx Nanoteknik0 (SwePub)2102 hsv//swe |
| 650 | 7 | a ENGINEERING AND TECHNOLOGYx Nano-technology0 (SwePub)2102 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Fysikx Den kondenserade materiens fysik0 (SwePub)103042 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Condensed Matter Physics0 (SwePub)103042 hsv//eng |
| 653 | a pMTJ | |
| 653 | a stochastic magnetization dynamics | |
| 653 | a micromagnetic modeling | |
| 653 | a Informations- och kommunikationsteknik | |
| 653 | a Information and Communication Technology | |
| 653 | a Material and Nano Physics | |
| 653 | a Material- och nanofysik | |
| 700 | 1 | a Malm, B. Gunnar,d 1972-u KTH,Elektroteknik4 aut0 (Swepub:kth)u13lag9j |
| 700 | 1 | a Kent, Andrew D.u Center for Quantum Phenomena, Department of Physics, New York University, New York, NY 10003, USA4 aut |
| 700 | 1 | a Chaves-O'Flynn, Gabriel D.u Institute of Molecular Physics, Polish Academy of Sciences, Poznan, Poland4 aut |
| 710 | 2 | a KTHb Elektronik och inbyggda system4 org |
| 856 | 4 | u https://doi.org/10.48550/arXiv.2305.09558y Fulltext |
| 856 | 4 | u https://kth.diva-portal.org/smash/get/diva2:1798581/FULLTEXT01.pdfx primaryx Raw objecty fulltext |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-336767 |
| 856 | 4 8 | u https://doi.org/10.48550/arXiv.2305.09558 |
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