Below 1 K

HIGH FIELD N. M. R. IN Cu(NO3)2 2 1/2 H2O BELOW 1°K

The proton spectrum of single crystals of Cu(NOs)2-2 ) Hz0 is studied between 0.3 and 1 OK. Fields up to 47 kOe were applied along the b axis. The field and temperature dependence of the magnetization obtained from these measurements can be described by an interpair exchange coupling zJ'/k = 1.9 OK that generates a transverse ordering below a critical temperature of 0.45 OK. Introduction. Low f...

Influence of Temperature Gradients on Tunnel Junction Thermometry below 1 K : Cooling and Electron - Phonon Coupling

We have studied thermal gradients in thin Cu and AlMn wires, both experimentally and theoretically. In the experiments, the wires were Joule heated non-uniformly at sub-Kelvin temperatures, and the resulting temperature gradients were measured using normal metal-insulator-superconducting tunnel junctions. The data clearly shows that even in reasonably well conducting thin wires with a short (∼ ...

Enzyme activity below the dynamical transition at 220 K.

Enzyme activity requires the activation of anharmonic motions, such as jumps between potential energy wells. However, in general, the forms and time scales of the functionally important anharmonic dynamics coupled to motion along the reaction coordinate remain to be determined. In particular, the question arises whether the temperature-dependent dynamical transition from harmonic to anharmonic ...

MAGNETIC SPECIFIC HEAT OF CoCl2.2 PYRAZINE BELOW 2 K

Production of K+K− pairs in proton-proton collisions below the φ meson threshold

Production of K+K− pairs in proton-proton collisions below the φ meson threshold Q. J. Ye,1,2,* M. Hartmann,2,† D. Chiladze,2,3 S. Dymov,4,5 A. Dzyuba,6 H. Gao,1 R. Gebel,2 V. Hejny,2 A. Kacharava,2 B. Lorentz,2 D. Mchedlishvili,2,3 S. Merzliakov,2,5 M. Mielke,7 S. Mikirtytchiants,2,6 H. Ohm,2 M. Papenbrock,7 A. Polyanskiy,2,8 V. Serdyuk,2,5 H. J. Stein,2 H. Ströher,2 S. Trusov,9,10 Yu. Valdau,...