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Journal Article

Bistable heating of solid samples immersed in liquid helium

MPS-Authors
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Lehr,  M. U.
Fritz Haber Institute, Max Planck Society;

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Schulz,  Hans-Joachim
Fritz Haber Institute, Max Planck Society;

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Thiede,  Manfred
Fritz Haber Institute, Max Planck Society;

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Citation

Lehr, M. U., Schulz, H.-J., & Thiede, M. (1993). Bistable heating of solid samples immersed in liquid helium. Applied Physics A, 57(2), 167-169. doi:10.1007/BF00331439.


Cite as: https://hdl.handle.net/21.11116/0000-000A-03C4-5
Abstract
A bistable heating of samples is found in liquid helium. Using the strong temperature dependence of the no-phonon doublet of the 4T1(G) → 6A1(S) emission of the ZnSe:Cr+ centre, the temperature can be determined in the excited volume. Temperature jumps of about 5 K are recorded. The cause for the bistable crystal heating lies in the transition from the nucleate boiling to the film boiling state of the helium. In this process, the heat transfer is drastically reduced and thus the sample is further heated.