NANO PHYSICS RESEARCH GROUP
Mesoscopic Electronics and Clusters

   
Selected publications


Two-dimensional electron gas systems; quantum dots and quantum point contacts


"Bias dependent subband edges and the 0.7 conductance anomaly"
A. Kristensen and H. Bruus
Physica Scripta (submitted, 2001). (pdf-file)



Invited contribution to the 19th Nordic Semiconductor Meeting


"A phenomenological two-subband model for quantum point contacts: the 0.7 conductance anomaly and the associated thermopower".
H. Bruus, V.V. Cheianov, and K. Flensberg
Proceedings of 32nd Rencontres de Moriond, in press (2001). (pdf-file)

"A single-particle path integral for composite fermions and the renormalization of the effective mass"
K. Astrup Eriksen, P. Hedegård, and H. Bruus
Phys. Rev. B (in press, 2001). (cond-mat/0101107)

"The anomalous 0.5 and 0.7 conductance plateaus in quantum point contacts"
H. Bruus, V.V. Cheianov, and K. Flensberg
Physica E 10, 97 (2001). (ps-file)

"Bias and temperature dependence of the 0.7 conductance anomaly in Quantum Point Contacts"
A. Kristensen, H. Bruus, A. E. Hansen, J. B. Jensen, P. E. Lindelof, C. J. Marckmann, J. Nygard, C. B. Sørensen, F. Beuscher, A. Forchel, M. Michel
Physical Review B 62, 10950 (2000). (ps-file)



Two-dimensional electron gas systems; rings and wires

"Mesoscopic decoherence in Aharonov-Bohm rings"
A. E. Hansen, A. Kristensen, S. Pedersen, C. B. Sørensen, P. E. Lindelof
Physical Review B 64, 045327 (2001).

"Observation of quantum asymmetry in an Aharonov-Bohm ring"
S. Pedersen, A.E. Hansen, A. Kristensen, C.B. Sørensen, and P.E. Lindelof
Phys. Rev. B 61 5457 (2000).



Nanoparticles and clusters

"Magnetisation of isolated single crystalline Fe-nanoparticles measured by a ballistic Hall micro-magnetometer"
L. Theil Kuhn, A.K. Geim, J.G.S. Lok, P. Hedegård, K. Ylänen, J.B. Jensen, E. Johnson, and P.E. Lindelof
European Physical Journal D 10 (2) 259 (2000).  (pdf-file)

"Electronic shell structure in clusters as reflected in mass abundance spectra"
S. Bjørnholm and J. Borggreen
Philosophical Magazine B79 (1999) 1321. (pdf-file)

"A technique for positioning nanoparticles using an atomic force microscope"
L. Theil Hansen, A. Kühle, A.H. Sørensen, J. Bohr, and P.E. Lindelof
Nanotechnology 9 (4) 337 (1998). (pdf-file)



Nanotubes

"Gold nanoparticle single electron transistor with carbon nanotube leads"
C. Thelander, M.H. Magnusson, K. Deppert, L. Samuelson, P.R. Poulsen, J. Nygård, J. Borggreen
Applied Physics Letters (to appear).

"Single-wall carbon nanotube devices prepared by chemical vapor deposition"
P.R. Poulsen, J. Borggreen, J. Nygård, D.H. Cobden, M.M. Andreasen, and P.E.Lindelof
Electronic properties of novel materials - Molecular nanostructures.
Edited by H. Kuzmany, J. Fink, M. Mehring.
API Conference Proceedings 544 (2000) 504.

"Kondo physics in carbon nanotubes"
J.Nygård, D.H.Cobden and P.E.Lindelof
Nature 408, 342-346 (2000).

"Transport measurements on single-walled carbon nanotubes"
J.Nygård, D.H.Cobden, M.Bockrath, P.L.McEuen, and P.E.Lindelof
Applied Physics A 69, 297-304 (1999).



Spin injection and magnetic semiconductors

"Spin-polarized transport in a two-dimensional electron gas with interdigital-ferromagnetic contacts"
C.-M. Hu, J. Nitta, A. Jensen, J. B. Hansen, and H. Takayanagi
Phys. Rev. B. 63, 125333 (2001). (ps-file)



Superconductors

"The magnetic neutron scattering resonance of high-Tc superconductors in external magnetic fields: an SO(5) study"
N.A. Mortensen, H.M. Rønnow, H. Bruus, and P. Hedegård
Phys. Rev. B 62, 8703 (2000). (pdf-file)