Thermal energy consideration in micromagnetic simulation for laminated antiferromagnetically coupled recording media

Autor:	C. H. Hee, Jian-Ping Wang, Tow Chong Chong, S. N. Piramanayagam
Rok vydání:	2001
Předmět:	Physics and Astronomy (miscellaneous) Condensed matter physics business.industry Chemistry Antiferromagnetism Recording media business Magnetic hysteresis Reduction (mathematics) Antiferromagnetic coupling Thermal energy
Zdroj:	Applied Physics Letters. 79:1646-1648
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.1402658
Popis:	Contribution of thermal energy, has been included in the micromagnetic simulation of laminated antiferromagnetically coupled (LAC) media. The antiferromagnetic coupling constant, J, required to obtain Mrt reduction in the existing simulation studies (T=0 K) of LAC media is much higher than the experimental values. In this letter, we describe some experimental results, which point out that the contribution of thermal energy in Mrt reduction is significant. Consequently, we find that the values of J and the reversal fields are comparable to the experimental results, when thermal energy (T=300 K) is included in the simulation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2656057b11a027c2c6cce617ee2f8802 https://doi.org/10.1063/1.1402658 Zobrazit plný text záznamu