Group D1: Physics of Atoms and Particles
52) SPIN-POLARIZATION STUDY OF CO MOLECULES ADSORBED ON Fe(110)
USING METASTABLE-ATOM DEEXCITATION SPECTROSCOPY AND FIRST-PRINCIPLE
CALCULATIONS.
By X. Sun, S. Förster, Q.X. Li, M. Kurahashi, T. Suzuki, J.W.
Zhang, Y. Yamauchi, G. Baum, and H. Steidl
(Nat.Inst.Mat.Sciences,Sengen,Tsukuba; Univ.Science Technology,Hefei,
Anhui; Bielefeld U.; Jap.Science amd Technology Agency,Honcho,Kawaguchi). 2007.
Published in Phys.Rev.B75:035419,1-9,2007
51) ANGLE-DIFFERENTIAL CROSS SECTIONS AND SPIN-ASYMMETRY
PARAMETERS FOR SPIN-POLARIZED ELECTRON-IMPACT EXCITATION OF
SPIN-POLARIZED CESIUM ATOM.
By G. Baum, S. Förster, N. Pavlovic, B. Roth, K. Bartschat, and
I. Bray (Bielefeld U. & Drake U., Des Moines & Murdoch U.,
Perth). 2004.
Published in Phys.Rev.A70:012707,1-13,2004
50) SPIN ASYMMETRY MEASUREMENTS IN INELASTIC e-Cs COLLISIONS.
By N. Pavlovic, G. Baum, I. Ernsting, S. Förster, and B. Roth
(Bielefeld U.). 2003.
Published in AIP Conf.Proceed. 697 (eds. G. Friedrich Hanne,
Laurence Malegat, Horst Schmidt-Böcking), pp. 199-204.
49) OXYGEN ADSORPTION ON Fe/W(110) AND Co/W(110) THIN FILMS: SURFACE
MAGNETIC PROPERTIES.
By S. Förster, G. Baum, M. Müller, and H. Steidl (Bielefeld
U.). 2002.
Published in Phys.Rev.B66:134427,1-8,2002
48) DETAILED EXPERIMENTAL AND THEORETICAL STUDY OF ELASTIC SCATTERING
AT INTERMEDIATE ENERGIES IN THE ELECTRON-CESIUM SYSTEM.
By G. Baum, N. Pavlovic, B. Roth, K. Bartschat, Y. Fang, and I. Bray
(Bielefeld U. & Drake U., Des Moines & Murdoch U., Perth). 2002.
Published in Phys.Rev.A66:022705,1-9,2002
47) SPIN ASYMMETRIES IN ELASTIC AND INELASTIC SCATTERING OF
SPIN-POLARIZED ELECTRONS FROM SPIN-POLARIZED CESIUM ATOMS.
By G. Baum, N. Pavlovic, and B. Roth (Bielefeld U.). 2001.
Published in *Princeton 2002: Photonic, Electronic & Atomic Collisions*,
Rinton Press (eds. J. Burgdörfer, J.S. Cohen, S. Datz, and C.R. Vance),
460-470.
46) ROLE OF EXCHANGE AND KINEMATIC IN THE GENERATION OF LOW-ENERGY
POLARIZED ELECTRON PAIRS.
By M. Streun, G. Baum, W. Blask, and J. Berakdar (Bielefeld U. &
CERN). 1999.
Published in Phys.Rev.A59:R4109-4112,1999
45) SPIN ASYMMETRIES IN LOW-ENERGY ELECTRON SCATTERING FROM CESIUM
ATOMS.
By G. Baum, W. Raith, M. Tondera, K. Bartschat, I. Bray, S. Ait-Tahar,
I. Grant, and P. Norrington (Bielefeld U. & Drake U., Des Moines &
Flinders U., Adelaide & Oxford U. & Queens U., Belfast). 1999.
Published in Phys.Rev.Lett.82:1128-1131,1999
44) MEASUREMENT OF EXCHANGE EFFECTS IN (e,2e) COLLISIONS ON LITHIUM.
By G. Baum, W. Blask, and M. Streun. 1999.
Published in J.Phys.IV France 9:219-223,1999
43) (e,2e) MEASUREMENTS ON LITHIUM WITH SPIN-POLARIZED BEAMS OF ELECTRONS
AND ATOMS.
By M. Streun and G. Baum (Bielefeld U.). 1998.
In *Cambridge 1998: New Directions in Atomic Physics* , eds. C.T.
Whelan et al., London Kluwer Academic 1999, pp. 263-268.
42) SPIN DEPENDENCE OF (e,2e) COLLISIONS ON LITHIUM AT 54.4 eV.
By M. Streun, G. Baum, W. Blask, J. Rasch, I. Bray, D. Fursa, S. Jones,
D. Madison, H. Walters, and C. Whelan (Bielefeld U. & Flinders U.,
Adelaide). 1998.
Published in J.Phys.B31:4401-4411,1998
41) MEASUREMENT OF SPIN POLARIZED (e,2e) PROCESSES AT 54.4 eV.
By M. Streun, G. Baum, W. Blask, S. Foerster, W. Raith and I. Schmaehl
(Bielefeld U.). 1997.
In *New York 1997, Coincidence Studies of Electron and Photon Impact
Ionization* 231-237.
40) INTERACTION OF SPIN-POLARIZED HELIUM (2^3S)-ATOMS WITH FERROMAGNETIC
SURFACES.
By H. Steidl and G. Baum (Bielefeld U.). 1996.
In *New York and London 1996, Selected Topics on Electron Physics*
233-241.
39) INTERFERENCE EFFECTS BETWEEN ELECTRON EXCHANGE AND THE SPIN-ORBIT
INTERACTION.
By W. Raith, G. Baum, and M. Tondera (Bielefeld U.). 1996.
In *Can. J. Phys.74* 883-888.
38) MEASUREMENT OF SPIN OBSERVABLES IN ELECTRON SCATTERING FROM ATOMS
AND NUCLEONS.
By G. Baum and W. Raith (Bielefeld U.). 1996.
In *New York and London 1996, Selected Topics on Electron Physics*
15-30.
37) MEASUREMENT OF EXCHANGE AND SPIN-ORBIT EFFECTS AND THEIR INTERFERENCE
IN ELASTIC e-Cs-SCATTERING.
By M. Tondera et al. (Bielefeld U.). 1995.
In *The Physics of Electronic and Atomic Collisions, Conf. Proc. 360,
1995* 805-813.
36) MEASUREMENT OF EXCHANGE AND SPIN-ORBIT INTERACTION EFFECTS IN
ELASTIC ELECTRON-CESIUM SCATTERING.
By W. Raith et al. (Bielefeld U.). 1995.
In *New York 1995, Polarized Electron / Polarized Photon Physics* 23-35.
35) MEASUREMENT OF EXCHANGE AND SPIN-ORBIT INTERACTION EFFECTS AND
THEIR INTERFERENCE IN ELASTIC e-Cs SCATTERING at 7 eV.
By B. Leuer, G. Baum, L. Grau, R. Niemeyer, W. Raith, and M. Tondera
(Bielefeld U.). 1995.
Published in Z.Phys. D33, 39-42, 1995.
34) SURFACE MAGNETIC PROPERTIES OF OXYGEN ON FERROMAGNETIC FILMS:
A SPIN RESOLVED MDS STUDY.
By M. Getzlaff et al. (Bielefeld U.). 1995.
Published in Surf.Sci. 31-333, 1404-1407. 1995.
33) SURFACE MAGNETIC PROPERTIES OF OXYGEN ON Fe (110).
By M. Getzlaff et al. (Bielefeld U.). 1995.
Published in J.Magn.Magn.Mater. 140-144, 727-728. 1995.
32) SURFACE MAGNETIC PROPERTIES OF Fe (110) AND Co(0001) FILMS.
By G. Baum et al. (Bielefeld U.). 1995.
Published in J.Magn.Magn.Mater. 148, 179-180, 1995.
31) POLARIZATION AND CORRELATION IN ELECTRONIC AND ATOMIC COLLISIONS.
By R. Hippler and G. Baum (Bielefeld U.). 1994.
Published in Comments At. Mol. Phys. 30, 307-313, 1994.
30) INVESTIGATION OF FERROMAGNETIC SURFACES WITH SPIN POLARIZED METASTABLE
HE(2^3S) ATOMS.
By M. Getzlaff, D. Egert, H. Steidl, G. Baum, and W. Raith (Bielefeld
U.). 1994.
Published in Z. Phys. D30, 245-249, 1994.
29) SPIN ASYMMETRY IN ELECTRON IMPACT IONIZATION OF CAESIUM.
By G. Baum, B. Granitza, L. Grau, B. Leuer, W. Raith, K. Rott, M. Tondera,
and B. Witthuhn (Bielefeld U.). 1993.
Published in J.Phys. B26, 331-336, 1993.
28) SPIN ASYMMETRIES FOR TRIPLE-DIFFERENTIAL ELECTRON-IMPACT IONIZATION
OF LITHIUM AT 54.4 eV.
By G. Baum, W. Blask, P. Freienstein, L. Frost, S. Hesse, W. Raith,
P. Rappolt, and M. Streun (Bielefeld U.). 1992.
Published in Phys.Rev.Lett. 69, 3037-40, 1992.
27) IMPACT IONIZATION OF POLARIZED ATOMS BY POLARIZED ELECTRONS:
MEASUREMENT OF THE INTEGRAL POLARIZATION ASYMMETRY.
By W. Raith, G. Baum, B. Granitza, B. Leuer, and H. Steidl (Bielefeld
U.). 1991.
In *Correlations and Polarization in Electronic and Atomic Collisions
and (e,2e) Reactions* IOP Conf.Series 122, 247-254, 1991.
26) EXCHANGE IN ELECTRON IMPACT IONIZATION: TRIPLE DIFFERENTIAL MEASUREMENTS
WITH POLARIZED BEAMS.
By L. Frost, G. Baum, W. Blask, P. Freienstein, S. Hesse, and W. Raith
(Bielefeld U.). 1991.
In *Brisbane 1991, Proc. XVII ICPEAC Brisbane*, 655-664, 1991.
25) AN OPTICALLY PUMPED, HIGHLY POLARIZED CESIUM BEAM FOR THE STUDY
OF SPIN-DEPENDENT ELECTRON SCATTERING.
By G. Baum, B. Granitza, S. Hesse, B. Leuer, W. Raith, K. Rott, M.
Tondera, and B. Witthuhn (Bielefeld U.). 1991.
Published in Z.Phys. D22, 431-436, 1991.
24) LOW-ENERGY CATHODOLUMINESCENCE EXPERIMENT WITH POLARIZED ELECTRONS
AND A NEGATIVE-ELECTRON AFFINITY GaAs TARGET.
By D. Goeckel, G. Baum, B. Fromme, V. Lehmann, B. Lohmann, and W. Raith
(Bielefeld U.). 1990.
Published in Phys.Rev. B42, 7242-44, 1990.
23) SPIN POLARIZED ELECTRON IMPACT IONIZATION OF ATOMS.
By G. Baum, P. Freienstein, L. Frost, B. Granitza, W. Raith, and H.
Steidl (Bielefeld U.). 1990.
In *Hoboken 1989, Proceed. Int. Symp. on Correlation and Polarization
in Electronic and Atomic Collisions*, NIST Special Publication 789, eds.
P.A. Neill et al., Washington 20402, 1990, pp. 121-127.
22) EMISSION OF CURCULARLY POLARIZED RECOMBINATION RADIATION FROM
p-DOPED GaAs and GaAsP UNDER THE IMPACT OF POLARIZED ELECTRONS.
By B. Fromme, G. Baum, D. Goeckel, and W. Raith (Bielefeld U.). 1989.
Published in Phys.Rev. B40, 12312-318, 1989.
21) POLARIZED ELECTRON-IMPACT IONIZATION OF METASTABLE HELIUM.
By G. Baum, M. Fink, W. Raith, H. Steidl, and J. Taborski (Bielefeld
U.). 1989.
Published in Phys.Rev. A40, 6743-36, 1989.
20) SPIN ASYMMETRIES IN THE LOW-ENERGY ELECTRON IMPACT EXCITATION
OF 2s-2p TRANSITIONS
IN LITHIUM ATOMS.
By G. Baum, L. Frost, W. Raith, and U. Sillmen (Bielefeld U.). 1989.
Published in J.Phys. B22, 1667-77, 1989.
19) THE SPIN DEPENDENCE OF THE EXCITATION OF METASTABLE AUTOIONISING
LITHIUM ^4P STATES BY ELECTRON IMPACT.
By G. Baum, W. Raith, and W. Schroeder (Bielefeld U.). 1988.
Published in J.Phys. B21, L501-07, 1988.
18) PRODUCTION OF A SPIN-POLARIZED METASTABLE He(2^3S)-BEAM FOR STUDIES
IN ATOMIC AND SURFACE PHYSICS.
By G. Baum, W. Raith, and H. Steidl (Bielefeld U.). 1988.
Published in Z.Phys. D10, 171-78, 1988.
17) MEASUREMENT OF SPIN DEPENDENCE IN LOW-ENERGY ELASTIC SCATTERING
OF ELECTRONS FROM LITHIUM ATOMS.
By G. Baum, M. Moede, W. Raith, and U. Sillmen (Bielefeld U.). 1986.
Published in Phys.Rev.Lett. 57, 1855-58, 1986.
16) MEASUREMENT OF SPIN ASYMMETRIES IN THE ELECTRON IMPACT IONISATION
OF ALKALI ATOMS.
By G. Baum, M. Moede, W. Raith, and W. Schroeder (Bielefeld U.). 1985.
Published in J.Phys. B18, 531-538, 1985.
15) A SPIN FLIPPER FOR REVERSAL OF POLARISATION IN A THERMAN ATOMIC
BEAM.
By W. Schroeder and G. Baum (Bielefeld U.). 1983.
Published in J.Phys. E16, 52-56, 1983.
14) SPIN INTERACTION IN ELECTRON-ATOM COLLISIONS.
By G. Baum (Bielefeld U.). 1982.
In *Trends in Physics, Proceedings of the 5th EPS General Conference,
Istanbul*, 460-469, Central Institute of Physics, Bucharest, 1982.
13) SPIN DEPENDENT ELECTRON IMPACT IONISATION OF LITHIUM FROM THRESHOLD
TO 80 eV.
By G. Baum, E. Kisker, W. Raith, W. Schroeder, U. Sillmen, and D. Zenses
(Bielefeld U.). 1981.
Published in J.Phys. B14, 4377-88, 1981.
12) POLARIZED ELECTRON-LITHIUM SCATTERING.
By W. Raith, G. Baum, D. Caldwell, and E. Kisker (Bielefeld U.). 1980.
In *Coherence and Correlation in Atomic Collisions*, Plenum Press,
567-75, 1980.
11) DUAL-FREQUENCY OPTICAL PUMPING FOR SPIN-POLARIZING AT LITHIUM
ATOMIC BEAM.
By G. Baum, D. Caldwell, and W. Schroeder (Bielefeld U.). 1980.
Published in Appl.Phys. 21, 121-26, 1980.
10) APPLICATION OF A DE FANO EFFECT POLARIZED ELECTRON SOURCE TO
LOW-ENERGY ELECTRON-ATOM SCATTERING.
By P. Wainwright, M. Alguard, G. Baum, and M. Lubell (Bielefeld U.).
1978.
Published in Rev.Sci.Instr. 49, 571-85, 1978.
9) ELECTRON FIELD EMISSION FROM FERROMAGNETIC EUROPIUM SULFIDE ON
TUNGSTEN.
By E. Kisker, G. Baum,, A. Mahan, W. Raith, and B. Reihl (Bielefeld
U.). 1978.
Published in Phys.Rev. B18, 2256-75, 1978.
8) FIELD EMISSION OF MONOENERGETIC SPIN-POLARIZED ELECTRONS.
By G. Baum, E. Kisker, A. Mahan, W. Raith, and B. Reihl (Bielefeld
U.). 1977.
Published in Appl.Phys. 14, 149-53, 1977.
7) DEPOLARIZATION EFFECTS IN PULSED PHOTIONIZATION OF STATE-SELECTED
LITHIUM.
By M. Alguard, J. Clendenin, P. Cooper, R. Ehrlich, V. Hughes, M. Lubell,
G. Baum, and K. Schueler (Bielefeld U.). 1977.
Published in Phys.Rev. 16, 209-12, 1977.
6) MEASUREMENT OF THE SCALAR POLARIZABILITY OF VERY HIGHLY EXCITED
STATES OF CAESIUM.
By A. van Raan, G. Baum, and W. Raith (Bielefeld U.). 1976.
Published in J.Phys. B9, L349-52, 1976.
5) ONE- AND TWO-PHOTON PRODUCTION OF VERY HIGHLY EXCITED STATES OF
CAESIUM.
By A. van Raan, G. Baum, and W. Raith (Bielefeld U.). 1976.
Published in J.Phys. B9, L173-76, 1976.
4) CONDUCTION-BAND TUNNELING AND ELECTRON-SPIN POLARIZATION IN FIEDL
EMISSION FROM MAGNETICALLY ORDERED EUROPIUM SULFID ON TUNGSTEN.
By E. Kisker, G. Baum, A. Mahan, W. Raith, and K. Schroeder (Bielefeld
U.). 1976.
Published in Phys.Rev.Lett. 36, 982-85, 1976.
3) THE TEMPERATURE DEPENDENCE OF THE SPIN POLARIZATION OF FIELD EMITTED
ELECTRONS FROM A W-EWuS-VACUUM JUNCTION.
By G. Baum, E. Kisker, A. Mahan, and K. Schroeder (Bielefeld U.). 1976.
Published in J.Magn.Magn.Mater. 3, 4-6, 1976.
2) MEASUREMENT OF THE SPIN-ORBIT PERTURBATION IN THE P-STATE CONTINUUM
OF HEAVY ALKALI-METAL ATOMS: K, Rb, and Cs.
By G. Baum, M. Lubell, and W. Raith (Bielefeld U.). 1972.
Published in Phys.Rev. A5, 1073-97, 1972.
1) SPIN-ORBIT PERTURBATION IN HEAVY ALKALI ATOMS.
By G. Baum, M. Lubell, and W. Raith (Bielefeld U.). 1970.
Published in Phys.Rev.Lett. 25, 267-70, 1970.