1 - 7 of 7 articles
We present experimental results on the superfluid onset of 4He adsorbed onto porous gold and evaporated CaF2 films grown on the electrodes of quartz microbalances (QCM). Adsorption and desorption isotherms were measured on the porous substrates in the range of 1.2 to 2.2 K. The isotherms were...
We examine bosonic atoms that are confined in a toroidal, quasi-one-dimensional trap, subjected to a random potential. The resulting inhomogeneous atomic density is smoothened for sufficiently strong, repulsive interatomic interactions. Statistical analysis of our simulations show that the gas...
The electron transport in inhomogenous quasi-one-dimensional conducting channels on the liquid helium surface are studied in the temperature range 0.6–1.5 K. Inhomogeneities are created by charging the substrate on which the channels are formed. It has been established that the electron...
The Provisional Low Temperature Scale of 2000, PLTS-2000, which was adopted in October 2000, uses the melting pressure of 3He to provide the basis for temperature measurement in the range from the Néel temperature of the solid, T
2000=0.902 mK, up to 1 K. The definition and derivation of the...
The crystal structure and magnetotransport properties of the Nd0.70Ba0.30-MnO3.00−δ
manganites have been investigated. The stoichiometric A-site ionic disordered Nd0.70Ba0.30MnO3.00 sample is orthorhombic (SG=Imma) ferromagnet below T
≈151 K. It has metal-insulator transition at T
Frost heave phenomena have been studied in 4He on porous vycor glass, in which 4He in the pores remained supercooled fluid below the bulk melting temperature, T
. When we cool a bulk solid at T below T
on the vycor, the bulk solid sucks the supercooled liquid in the pores and grows. We...
In this paper we present the dependence of the maximum levitation force (F
) of a high-T
superconductor (HTS) on the structural factors of high-T
superconducting systems based on the Bean critical state model and Ampère’s law. A transition point of the surface magnetic field...
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