Concept

Debye model

Related publications (85)

Optical spectroscopy of semiconductor quantum wires

Elyahou Kapon, Marc-André Dupertuis, Daniel Oberli

We investigated the optical properties of excitons in quasi-one-dimensional semiconductor quantum structures by photoluminescence and photoluminescence excitation: High-quality GaAs/AlxGa1-xAs heterostructures were grown using low-pressure organometallic c ...

1995

Experimental evidence for the existence of enhanced density of states and canonical spin-glass behavior in Al-Mn (-Si) quasicrystals

Davor Pavuna

The authors report experimental evidence for an enhanced density of states at the Fermi level in Al86Mn14 and Al75Mn20Si5 quasicrystals (QC) as indicated by the low-temperature specific heat and resistivity. The excess specific-heat term Δγ is proportional ...

1988

ON MAGNETIC INTERACTIONS IN QUASICRYSTALLINE Al//8//6Mn//1//4 AND Al//7//5Mn//2//0Si//5 ALLOYS

Davor Pavuna

Low temperature specific heat and ac susceptibility studies on quasicrystalline Al//8//6Mn//1//4 and Al//7//5Mn//2//0Si//5 show that most Mn's are nonmagnetic. The fraction of magnetic Mn's (about 5-10% of all Mn atoms) exhibit spin-glass behavior which in ...

1987

PHASE PORTRAIT OF SU(5) MODEL

Igor Tkachev

The one-loop effective potential of the SU(5) model is investigated both in high and low temperature approximation. We find the regions of values of coupling constants and temperatures where the SU(5), the SU(4)×U(1) and the SU(3)×SU(2)×U(1) symmetric stat ...

1982

Intra- and interlayer contributions to the lattice vibrations in MoO3

Marcel Py

We report new experimental results for the Raman- and infrared-active modes in the layered compound MoO3. The observed frequencies are explained in terms of a valence-force-field model, including interlayer interactions. Most of the 45 optical modes are do ...

1981

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