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Bistable heating of solid samples immersed in liquid helium (1993)

Lehr, M. U. ; Schulz, H. -J. ; Thiede, M.

Springer

Applied physics 57 (1993), S. 167-169

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ISSN: 1432-0630

Keywords: 78.55.Et ; 07.20.Mc ; 44.30.+v

Source: Springer Online Journal Archives 1860-2000

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics

Notes: Abstract A bistable heating of samples is found in liquid helium. Using the strong temperature dependence of the no-phonon doublet of the 4 T 1(G) → 6 A 1(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.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00331439

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