Charged carriers with different spin states are spatially separated in a two-dimensional hole gas. Because of strong spin-orbit interaction, holes at the Fermi energy in GaAs have different momenta for two possible spin states traveling in the same direction, and, correspondingly, different cyclotron orbits in a weak magnetic field. Two point contacts, acting as a monochromatic source of ballis...

Hadron therapy hospital centers have become wide spread in the world during the last decade. These centers were created mainly on basis of the cycling accelerators such as cyclotrons and synchrotrons. Now there are several proposals of the proton centers on the basis of linear accelerators. In this report we discuss features, advantages and disadvantages of hadron therapy centers on the basis o...

Radiation therapy is one of the most frequently used methods for treating cancer patients. Therefore improving the quality of the treatment by using new irradiation technologies is one of the radiotherapist's constant concerns. The use of accelerators for delivering protons, heavier charged particles and secondary beams such as neutrons brings further improvement in dose distribution and in int...

An analogy is uncovered between the nuclear reaction rate in a dense neutral plasma and the energy equipartition rate in a strongly magnetized non-neutral plasma. In strong magnetic fields, cyclotron energy, like nuclear energy, is released only through rare close collisions between charges. The probability of such collisions is enhanced by plasma screening effects, just as in nuclear reactions...

: Cyclotron resonance study of HgTe/CdTe-based quantum wells with both inverted and normal band structures in quantizing magnetic fields was performed. In semimetallic HgTe quantum wells with inverted band structure, a hole cyclotron resonance line was observed for the first time. In the samples with normal band structure, interband transitions were observed with wide line width due to quantum ...

Using magnetocapacitance data, we directly determine the chemical potential jump at low temperatures of about 25 mK when the filling factor traverses the spin gap at n ­ 1 and the cyclotron gap at n ­ 2. The chemical potential jump for the cyclotron gap is found to increase proportionally to the magnetic field with a slope that is determined by an effective mass 0.071m0. The data yield a spin g...

D. Lacroix, 2, ∗ T. Duguet, 3, 4, † and M. Bender 6, ‡ National Superconducting Cyclotron Laboratory, 1 Cyclotron Laboratory, East-Lansing, MI 48824, USA GANIL, CEA et IN2P3, BP 5027, 14076 Caen Cedex, France Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA CEA, Centre de Saclay, IRFU/Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, France Univer...