Titlebook: Quantum Tunneling of Magnetization — QTM ’94; Leon Gunther,Bernard Barbara Book 1995 Springer Science+Business Media Dordrecht 1995 Experi

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护身符

chondromalacia

Linear Response and Thermal Equilibrium Noise of Magnetic Materials at Low Temperature: Logarithmic romagnetic systems at low temperature. All the examined materials show magnetic fluctuations in detailed quantitative agreement with the fluctuation dissipation formula. The fluctuation spectrum displays a 1/f low frequency tail due to the existence of a frequency independent imaginary susceptibilit

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FUSC

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勤勉

DC-SQUID Magnetization Measurements of Single Magnetic Particlestector we use a micro-bridge-DC-SQUID deposited onto or next to the sample. Sample and detector are patterned by electron-beam lithography. The dynamics and the temperature dependence of the magnetization reversal is studied in view of Macroscopic Quantum Tunneling (MQT).

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Jejune

Domain Wall Tunneling in a One Dimensional Ferromagnetnd de-pinning of walls on structural defects. The behavior of the fields required for de-pinning suggest that this process is thermally activated at high temperatures, and occurs via tunneling at low temperatures. The cross-over temperature is found to be ~ 4 K, which is in order of magnitude agreem

多嘴

Nuclear Spin Dissipation in Magnetic Macroscopic Quantum Phenomenaf a ferromagnetic particle, or of the Néel vector of an antiferromagnetic particle. This paper reviews theoretical calculations of the effect of nuclear spins on these phenomena, and discusses experimental claims to have seen MQC in this light.