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Autor:
Rolf-Pissarczyk, Steffen, Yan, Shichao, Malavolti, Luigi, Burgess, Jacob A. J., McMurtrie, Gregory, Loth, Sebastian
We present the appearance of negative differential resistance (NDR) in spin-dependent electron transport through a few-atom spin-chain. A chain of three antiferromagnetically coupled Fe atoms(Fe trimer) was positioned on a Cu2N/Cu(100) surface and co
Externí odkaz:
http://arxiv.org/abs/1712.04213
Autor:
Rashidi, Mohammad, Vine, Wyatt, Burgess, Jacob A. J., Taucer, Marco, Achal, Roshan, Pitters, Jason L., Loth, Sebastian, Wolkow, Robert A.
The miniaturization of semiconductor devices to the scales where small numbers of dopants can control device properties requires the development of new techniques capable of characterizing their dynamics. Investigating single dopants requires sub-nan
Externí odkaz:
http://arxiv.org/abs/1706.08906
Publikováno v:
Physical Review B 94, 224504 (2016)
Superconducting properties change in confined geometries. Here we study the effects of strong confinement in nanosized Pb-islands on Si(111) 7x7. Small hexagonal islands with diameters less than 50 nm and a uniform height of 7 atomic layers are forme
Externí odkaz:
http://arxiv.org/abs/1702.03686
Autor:
Yan, Shichao, Malavolti, Luigi, Burgess, Jacob A. J., Droghetti, Andrea, Rubio, Angel, Loth, Sebastian
Publikováno v:
Science Advances 3, e1603137 (2017)
The ability to sense the magnetic state of individual magnetic nano-objects is a key capability for powerful applications ranging from readout of ultra-dense magnetic memory to the measurement of spins in complex structures with nanometer precision.
Externí odkaz:
http://arxiv.org/abs/1601.02723
Autor:
Rashidi, Mohammad, Burgess, Jacob, Taucer, Marco, Achal, Roshan, Pitters, Jason L., Loth, Sebastian, Wolkow, Robert A.
Publikováno v:
Nature Communications 7, 13258 (2016)
As the ultimate miniaturization of semiconductor devices approaches, it is imperative that the effects of single dopants be clarified. Beyond providing insight into functions and limitations of conventional devices, such information enables identific
Externí odkaz:
http://arxiv.org/abs/1512.01101
Autor:
Choi, Deung-Jang, Robles, Roberto, Yan, Shichao, Burgess, Jacob A. J., Rolf-Pissarczyk, Steffen, Gauyacq, Jean-Pierre, Lorente, Nicolás, Ternes, Markus, Loth, Sebastian
Quantum entanglement permeates the complex ground states of correlated electron materials defying single-particle descriptions. Coupled magnetic atoms have potential as model systems for entanglement in condensed matter giving the opportunity to crea
Externí odkaz:
http://arxiv.org/abs/1507.04785
Autor:
Burgess, Jacob A. J., Holt, Chris M. B., Luber, Erik J., Fortin, David C., Popowich, Greg, Zahiri, Ben, Concepcion, Paul, Mitlin, David, Freeman, Mark R.
Publikováno v:
Scientific Reports 6, 30973 (2016)
Scanning tunneling microscopy (STM) observations resolve the structure and dynamics of metallic glass Cu$_{100-x}$Hf$_{x}$ films and demonstrate STM control of aging at a metallic glass surface. Surface clusters exhibit heterogeneous hopping dynamics
Externí odkaz:
http://arxiv.org/abs/1409.5111
A two-parameter analytical model of the magnetic vortex in a thin disk of soft magnetic material is constructed. The model is capable of describing the change in evolution of net vortex state magnetization and of core position when the vortex core in
Externí odkaz:
http://arxiv.org/abs/1208.3797
Autor:
Losby, Joseph, Burgess, Jacob A. J., Diao, Zhu, Fortin, David C., Hiebert, Wayne K., Freeman, Mark R.
Publikováno v:
J. Appl. Phys. 111, 07D305 (2012)
We report on the fabrication of sensitive nanotorsional resonators, which can be utilized as magnetometers for investigating the magnetization dynamics in small magnetic elements. The thermo-mechanical noise is calibrated with the resonator displacem
Externí odkaz:
http://arxiv.org/abs/1203.0998