ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Sliding wigner solid on liquid4He (1996)
    Springer
    Journal of low temperature physics 104 (1996), S. 237-264 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report a systematic experimental study of the anomalous nonlinear magnetotransport in the Wigner solid (WS) trapped on a liquid4He surface. The ac Corbino conductivity σxx exhibits an abrupt jump at a certain driving voltage. The threshold input voltage Vth for the σxx jump varies as Vth ∝ B−0.8 ω−1 n1.5 sE⊥, where B, ω, ns, and E⊥ are magnetic field, frequency, electron density and pressing electric field, respectively. We interpret the σxx jump as the transition between the WS accompanied with the periodic 4He surface deformation and the WS which decouples from the surface, due to the large driving force. A simple model is presented: The rigid-potential sliding model qualitatively explains the above mentioned behaviors of Vth. We have found that the dependences of σxx on B and E⊥ are different from those of the liquid phase. The anomalous behaviors of σxx play a crucial role on the sliding model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00754096
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Escape rate of surface state electrons on liquid helium below 1 K (1982)
    Springer
    Journal of low temperature physics 46 (1982), S. 195-203 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The escape rate of surface state electrons on liquid helium was measured in the temperature interval 0.56〈T〈1.0 K for electron areal density below 5×107 cm−2, where the rate is independent of density. It is found that the escape rate is dominated by the scattering from the helium gas atoms in the vapor phase above 0.8 K, while it is dominated by that from ripplons (surface wave quanta) below 0.8 K. Quantitative agreement is obtained between our experiment and the theoretical calculation by Nagano et al.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00655050
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Electron escape from the image-potential-induced surface states on liquid helium (1980)
    Springer
    Journal of low temperature physics 38 (1980), S. 293-310 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Electron escape from the two-dimensional surface state is studied for liquid 4He and 3He surfaces. Experimental conditions are established under which “proper” signals are obtained to give the intrinsic escape rates. The escape rates in the temperature range 1.1 〉 T 〉 0.9 K for the 4He surface and 0.6 〉 T 〉 0.44 K for the 3He surface show the theoretically expected thermalactivation-type temperature dependence. In the present experimental configuration, the measured escape rate at higher electron densities explicitly demonstrates the electron correlation effect. A simple model is presented to account for the correlation effect on the binding energy of the surface electrons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00114327
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    New application of third sound for the study of quasiperiodic systems (1992)
    Springer
    Journal of low temperature physics 89 (1992), S. 573-576 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A new application of third sound for the study of wave propagation in quasiperiodic systems has been developed. The advantages of the present method are: 1) Small attenuation of third sound and well-controlled fabrication of scatterers ensure the long phase-coherence length. 2) One- and two-dimensional quasiperiodic lattices can be studied. Transmission spectrum of third sound in the Penrose lattice (two-dimensional quasiperiodic lattice) has been obtained for the first time.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00694090
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Possible correlation effects of surface state electrons on a solid hydrogen film (1992)
    Springer
    Journal of low temperature physics 89 (1992), S. 743-746 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have investigated the transport properties of surface state electrons on thin quench-condensed hydrogen films for various electron densities. The surface state electron mobility showed a continuous dependence on the plasma parameter Γ in the range from 20 to 130, indicating a strong influence of correlation effects within the electron system for all measured values of Γ.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00694131
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Temperature dependence of third-sound velocity in the vicinity ofT c (1984)
    Springer
    Journal of low temperature physics 57 (1984), S. 319-330 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We measure the temperature dependence of the velocity of third soundC 3 in the vicinity of the critical temperatureT c . It is found thatC 3 2 is well fitted by the experimental formulaC 3(T c )2[1+1/2(−Ct)1/2], wheret=(T−T c )/T c andC is a constant, equal to about 5.4. This (−t)1/2 cusp is consistent with the theory of the Kosterlitz-Thouless (KT) transition in two dimensions. The chemical potential μ0 for the vortex pair excitation is estimated as μ0=3.03k B T c with the aid of the static theory of the KT transition. The consistency between the experimentally obtained value of μ0 and the KT transition theory is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00681196
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Surface state electrons on a hydrogen film. 2. Influence of adsorbed helium films (1991)
    Springer
    Journal of low temperature physics 85 (1991), S. 423-444 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have investigated the conductivity of surface state electrons on liquid4He films supported by a quench-condensed thin solid hydrogen substrate. A pronounced dip in the ac-conductivity was observed as the He film thickness reached about 10 layers. This phenomenon was studied at different temperatures (range between 1.6 and 2 K), electron densities from 0.9 to 19×108 cm−2, frequencies between 1 and 100 kHz, and for various amplitudes of the ac driving voltage. Ripplon scattering and a ripplonic polaron are discussed as sources for the conductivity dip.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00682195
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Surface-state electrons on a hydrogen film. 1. Annealing of the film (1991)
    Springer
    Journal of low temperature physics 82 (1991), S. 279-293 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have investigated the surface of thin films (thickness ∼2 µm) of solid H2 between 1.5 and 4.2 K by measuring the ac conductivity of surface-state electrons (SSE). The films were prepared on a glass substrate by quench condensation at 1.5 K and were therefore initially strongly disordered. In fact the surface of the virgin films before any heat treatment was so rough that no current due to SSE could be observed. Annealing the films decreased the surface roughness and gave rise to a thermal-activation-type temperature dependence of the SSE conductivity. By proper heat treatment up to 8 K the activation energy could be reduced to 10k B.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00681420
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Escape rate of two-dimensional electrons on a liquid helium surface around 1 K (1979)
    Springer
    Journal of low temperature physics 34 (1979), S. 539-550 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Electron escape from a two-dimensional surface state on liquid helium to three-dimensional free space is studied. A thermal-activation-type temperature dependence of the escape rate is observed at 1.1〉T〉0.9 K for the first time. The mechanism of electron escape is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00114939
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Plasma Resonance of the Wigner Solid on the Free Surface of Normal and Superfluid 3He (1998)
    Springer
    Journal of low temperature physics 113 (1998), S. 1103-1108 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Wigner solid on liquid 3 He is used as a sensitive probe for the study of the surface dynamics. We have experimentally investigated the behavior of optical coupled plasmon-ripplon (CPR) resonances for temperatures down to 0.4 mK. We have used a linewidth of CPR resonance Δf for getting τ = (2πΔf)−l, the collision time in the scattering of surface electrons from the surface roughness. The collision time is in good agreement with single-electron-ripplon scattering theory down to 30 mK, while below 30 mK the collision time deviates from the theory, and at 1 mK experimental value of τ is one order of magnitude longer than the theoretically predicted one.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022533207389
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...