Time-dependent phenomena at low temperature in magnetic digital compact cassette tape
1994; American Institute of Physics; Volume: 75; Issue: 10 Linguagem: Inglês
10.1063/1.355618
ISSN1520-8850
Autores Tópico(s)Advanced Condensed Matter Physics
ResumoIn this paper we report on the low-temperature magnetic relaxation of CrO2 particles of digital compact cassette tapes. The observed temperature dependence of the magnetic viscosity, S≡∂M/∂ ln t, shows three different regimes below room temperature. The most remarkable is that for T≤5 K, S(T) remains constant, suggesting the occurrence of macroscopic quantum tunneling of magnetization.
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