TY  - JOUR
AU  - Hayderer, G
AU  - Cernusca, S
AU  - Schmid, M
AU  - Varga, P
AU  - Winter, HP
AU  - Aumayr, F
AU  - Niemann, D
AU  - Hoffmann, V
AU  - Stolterfoht, N
AU  - Lemell, C
AU  - Wirtz, L
AU  - Burgdörfer, Joachim
TI  - Kinetically assisted potential sputtering of insulators by highly charged ions
JF  - PHYSICAL REVIEW LETTERS
J2  - PHYS REV LETT
VL  - 86
PY  - 2001
IS  - 16
SP  - 3530
EP  - 3533
PG  - 4
SN  - 0031-9007
DO  - 10.1103/PhysRevLett.86.3530
UR  - https://m2.mtmt.hu/api/publication/1246773
ID  - 1246773
N1  - ISI:000168109800018
AB  - A new form of potential sputtering has been found for impact of slow
(less than or equal to 1500 eV) multiply charged Xe ions (charge states
up to q = 25) on MgOx. 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 process.
This kinetically assisted potential sputtering mechanism has been
identified to be present for ether insulating surfaces as well.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Hayderer, G
AU  - Lemell, C
AU  - Wirtz, L
AU  - Schmid, M
AU  - Burgdörfer, Joachim
AU  - Varga, P
AU  - Winter, HP
AU  - Aumayr, F
TI  - Observation of a threshold in potential sputtering of lif surfaces
JF  - NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
J2  - NUCL INSTRUM METH B
VL  - 164
PY  - 2000
SP  - 517
EP  - 521
PG  - 5
SN  - 0168-583X
UR  - https://m2.mtmt.hu/api/publication/1246763
ID  - 1246763
N1  - : INTERACTIONS WITH MATERIALS AND ATOMS
ISI:000087022500065
AB  - A quartz-crystal microbalance technique is used for measuring total
sputtering yields for LiF under impact of slow (20 eV, 100 eV, 500 eV
and 1000 eV kinetic energy) singly and doubly charged ions. At low
kinetic energies (less than or equal to 100 eV) potential sputtering
(PS) (i.e., sputtering due to the projectiles potential energy) clearly
dominates over kinetically induced sputtering. New insight into the
mechanisms for PS is gained by determining the minimum potential energy
necessary to induce PS. The measured potential energy threshold at
around 10 eV provides evidence that PS can already be induced by the
production of cold holes in the valence band of LiF via resonant
neutralisation. (C) 2000 Elsevier Science B.V. All rights reserved.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Aumayr, F
AU  - Burgdörfer, Joachim
AU  - Hayderer, G
AU  - Varga, P
AU  - Winter, HP
TI  - Evidence against the "coulomb explosion" model for desorption from insulator surfaces by slow highly charged ions
JF  - PHYSICA SCRIPTA
J2  - PHYS SCR
VL  - T80B
PY  - 1999
SP  - 240
EP  - 242
PG  - 3
SN  - 0031-8949
DO  - 10.1238/Physica.Topical.080a00240
UR  - https://m2.mtmt.hu/api/publication/1246746
ID  - 1246746
N1  - ISI:000082093100028
AB  - The "Coulomb explosion" model has been frequently invoked to explain
that HCI induced sputtering- and secondary ion emission yields for
certain (insulating) target surfaces dramatically increase with
projectile charge state. Based on available experimental results and
new theoretical estimates we will present evidence that "Coulomb
explosion" can be ruled out as a dominant mechanism for potential
sputtering of insulating surfaces, whereas all experimental features
are found to be consistent with a model involving defect-mediated
desorption.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Hayderer, G
AU  - Schmid, M
AU  - Varga, P
AU  - Winter, HP
AU  - Aumayr, F
AU  - Wirtz, L
AU  - Lemell, C
AU  - Burgdörfer, Joachim
AU  - Hagg, L
AU  - Reinhold, CO
TI  - Threshold for potential sputtering of lif
JF  - PHYSICAL REVIEW LETTERS
J2  - PHYS REV LETT
VL  - 83
PY  - 1999
IS  - 19
SP  - 3948
EP  - 3951
PG  - 4
SN  - 0031-9007
DO  - 10.1103/PhysRevLett.83.3948
UR  - https://m2.mtmt.hu/api/publication/1246756
ID  - 1246756
N1  - ISI:000083546200051
AB  - We have measured total sputtering yields for impact of slow (less than
or equal to 100 eV) singly and doubly charged ions on LiF. The minimum
potential energy necessary to induce potential sputtering (PS) from UF
was determined to be about 10 eV. This threshold coincides with the
energy necessary to produce a cold hole in the valence band of LiF by
resonant neutralization. This allows the first unambiguous
identification of PS induced by cold holes. Further stepwise increase
of the sputtering yield with higher projectile potential energies
provides evidence for additional defect-mediated sputtering mechanisms
operative in alkali halides.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Lemell, C
AU  - Stockl, J
AU  - Burgdörfer, Joachim
AU  - Betz, G
AU  - Winter, HP
AU  - Aumayr, F
TI  - Multicharged ion impact on clean au(111): suppression of kinetic electron emission in glancing angle scattering
JF  - PHYSICAL REVIEW LETTERS
J2  - PHYS REV LETT
VL  - 81
PY  - 1998
IS  - 9
SP  - 1965
EP  - 1968
PG  - 4
SN  - 0031-9007
UR  - https://m2.mtmt.hu/api/publication/1246744
ID  - 1246744
N1  - ISI:000075626300054
AB  - We have measured the number statistics of emitted electrons in
coincidence with the projectile scattering angle distribution for
multiply charged slow Ar ions scattered off an Au(lll) surface at
grazing incidence. The comparison of the electron statistic spectra for
different projectile exit and incidence angles permits a separation of
potential and kinetic electron emission. A molecular dynamics
simulation allows to associate the multiple electron emission with
specific trajectory histories (planar and subsurface channeling, close
collisions with target atoms at steps and imperfections).
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Lemell, C
AU  - Winter, HP
AU  - Aumayr, F
AU  - Burgdörfer, Joachim
AU  - Meyer, F
TI  - Image acceleration of highly charged ions by metal surfaces
JF  - PHYSICAL REVIEW A
J2  - PHYS REV A
VL  - 53
PY  - 1996
IS  - 2
SP  - 880
EP  - 885
PG  - 6
SN  - 2469-9926
UR  - https://m2.mtmt.hu/api/publication/1246719
ID  - 1246719
N1  - ISI:A1996TV64800031
AB  - We present classical simulations for the energy gain, Delta E, due to
the image acceleration of very highly charged ions (Q much greater than
10) by metal surfaces. We show that for large Q the simulated values
Delta E, based on the classical over-barrier model, fall below the
''staircase'' model but still exceed the lower bound for classically
allowed transitions. The results are in reasonable agreement with
recent experimental data. Effects of the nonzero velocity of the
projectile parallel to the surface appear to be insignificant for the
energy gain.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Gillaspy, JD
AU  - Aglitsky, Y
AU  - Bell, EW
AU  - Brown, CM
AU  - Chantler, CT
AU  - Deslattes, RD
AU  - Feldman, U
AU  - Hudson, LT
AU  - Laming, IM
AU  - Meyer, ES
AU  - Morgan, CA
AU  - Pikin, AI
AU  - Roberts, JR
AU  - Serpa, FG
AU  - Sugar, J
AU  - Takács, Endre
TI  - Overwiev of the EBIT program at NIST
JF  - PHYSICA SCRIPTA
J2  - PHYS SCR
VL  - T59
PY  - 1995
SP  - 392
EP  - 395
PG  - 4
SN  - 0031-8949
DO  - 10.1088/0031-8949/1995/T59/053
UR  - https://m2.mtmt.hu/api/publication/146549
ID  - 146549
N1  - [P09644]
WoS:hiba:A1995TF44400054 2019-12-05 20:34 cím nem egyezik
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Morgan, CA
AU  - Serpa, FG
AU  - Takács, Endre
AU  - Meyer, ES
AU  - Gillaspy, JD
AU  - Sugar, J
AU  - Roberts, JR
AU  - Brown, CM
AU  - Feldman, U
TI  - Observation of visible and uv magnetic dipole transitions in highly charged xenon and barium
JF  - PHYSICAL REVIEW LETTERS
J2  - PHYS REV LETT
VL  - 74
PY  - 1995
IS  - 10
SP  - 1716
EP  - 1719
PG  - 4
SN  - 0031-9007
DO  - 10.1103/PhysRevLett.74.1716
UR  - https://m2.mtmt.hu/api/publication/146510
ID  - 146510
N1  - [P09100]
LA  - English
DB  - MTMT
ER  -