منابع مشابه
Kinetically assisted potential sputtering of insulators by highly charged ions.
A new form of potential sputtering has been found for impact of slow ( < or = 1500 eV) multiply charged Xe ions (charge states up to q = 25) on MgO(x). In contrast to alkali-halide or SiO2 surfaces this mechanism requires the simultaneous presence of electronic excitation of the target material and of a kinetically formed collision cascade within the target in order to initiate the sputtering p...
متن کاملCharge exchange and energy loss of slow highly charged ions in 1 nm thick carbon nanomembranes.
Experimental charge exchange and energy loss data for the transmission of slow highly charged Xe ions through ultrathin polymeric carbon membranes are presented. Surprisingly, two distinct exit charge state distributions accompanied by charge exchange dependent energy losses are observed. The energy loss for ions exhibiting large charge loss shows a quadratic dependency on the incident charge s...
متن کاملEnergy dissipation of highly charged ions on Al oxide films.
Slow highly charged ions (HCIs) carry a large amount of potential energy that can be dissipated within femtoseconds upon interaction with a surface. HCI-insulator collisions result in high sputter yields and surface nanofeature creation due to strong coupling between the solid's electronic system and lattice. For HCIs interacting with Al oxide, combined experiments and theory indicate that defe...
متن کاملParity Violation effects in highly-charged ions
Parity-nonconserving (PNC) atomic effects originate from the electroweak interaction of atomic electrons with the nucleus via Z-boson exchange. Comparing experimental results with theoretical predictions of the standard model allows to search for ”new physics” beyond the standard model (e.g., a second Z-boson or new fermions) [1]. In the case of neutral atoms here is the discrepancy between the...
متن کاملAtomic Parity-Violation in Highly-Charged Ions
The investigation of parity-violation (PV) in forbidden atomic transitions is an active and fundamental research area, especially for its implications on the physics beyond the Standard Model [1]. Atomic transitions may be employed to study PV effects originating from weak neutral currents, i.e. due to the exchange of a Z boson between a nucleon of the nucleus and a bound electron. Experiments ...
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ژورنال
عنوان ژورنال: Physica Scripta
سال: 1997
ISSN: 0031-8949,1402-4896
DOI: 10.1088/0031-8949/1997/t73/107