Zobrazeno 1 - 10
of 477
pro vyhledávání: '"Witkamp, B."'
Autor:
Huettel, A. K., Meerwaldt, H. B., Steele, G. A., Poot, M., Witkamp, B., Kouwenhoven, L. P., van der Zant, H. S. J.
Publikováno v:
Physica Status Solidi (b) 247, 2974 (2010)
By first lithographically fabricating contact electrodes and then as last step growing carbon nanotubes with chemical vapour deposition across the ready-made chip, many potential contamination mechanisms for nanotube devices can be avoided. Combining
Externí odkaz:
http://arxiv.org/abs/1004.5362
Autor:
Jhang, S. H., Marganska, M., Skourski, Y., Preusche, D., Witkamp, B., Grifoni, M., van der Zant, H., Wosnitza, J., Strunk, C.
Publikováno v:
Phys. Rev. B 82, 041404(R) (2010)
The magneto-conductance of an open carbon nanotube (CNT)-quantum wire was measured in pulsed magnetic fields. At low temperatures we find a peculiar split magneto-conductance peak close to the charge neutrality point. Our analysis of the data reveals
Externí odkaz:
http://arxiv.org/abs/1001.4767
Autor:
Steele, G. A., Huettel, A. K., Witkamp, B., Poot, M., Meerwaldt, H. B., Kouwenhoven, L. P., van der Zant, H. S. J.
Publikováno v:
Science 325, 1103 (2009)
Nanoscale resonators that oscillate at high frequencies are useful in many measurement applications. We studied a high-quality mechanical resonator made from a suspended carbon nanotube driven into motion by applying a periodic radio frequency potent
Externí odkaz:
http://arxiv.org/abs/1001.4372
Autor:
Huettel, A. K., Steele, G. A., Witkamp, B., Poot, M., Kouwenhoven, L. P., van der Zant, H. S. J.
Publikováno v:
Nano Lett, 2009, 9 (7), pp 2547-2552
We have observed the transversal vibration mode of suspended carbon nanotubes at millikelvin temperatures by measuring the single-electron tunneling current. The suspended nanotubes are actuated contact-free by the radio frequency electric field of a
Externí odkaz:
http://arxiv.org/abs/0907.2823
Publikováno v:
Phys. Rev. Lett. 102, 225501 (2009)
Low-temperature transport spectroscopy measurements on a suspended few-hole carbon nanotube quantum dot are presented, showing a gate-dependent harmonic excitation spectrum which, strikingly, occurs in the Coulomb blockade regime. The quantized excit
Externí odkaz:
http://arxiv.org/abs/0812.1769
Publikováno v:
Applied Physics Letters 93, 111909 (2008)
We have fabricated suspended metal paddle resonators with carbon nanotubes functioning as self-detecting torsional springs. We observe gate-tunable resonances, that either tune to higher or to lower frequencies when increasing the dc voltage on the b
Externí odkaz:
http://arxiv.org/abs/0809.0372
Autor:
Elzerman, J. M., Hanson, R., van Beveren, L. H. Willems, Witkamp, B., Vandersypen, L. M. K., Kouwenhoven, L. P.
Publikováno v:
extended version of Nature 430, 431-435 (2004)
Spin is a fundamental property of all elementary particles. Classically it can be viewed as a tiny magnetic moment, but a measurement of an electron spin along the direction of an external magnetic field can have only two outcomes: parallel or anti-p
Externí odkaz:
http://arxiv.org/abs/cond-mat/0411232
Autor:
Hanson, R., Witkamp, B., Vandersypen, L. M. K., van Beveren, L. H. Willems, Elzerman, J. M., Kouwenhoven, L. P.
Publikováno v:
Phys. Rev. Lett. 91, 196802 (2003)
We have measured the relaxation time, T1, of the spin of a single electron confined in a semiconductor quantum dot (a proposed quantum bit). In a magnetic field, applied parallel to the two-dimensional electron gas in which the quantum dot is defined
Externí odkaz:
http://arxiv.org/abs/cond-mat/0303139
Autor:
Steele, G. A., Hüttel, A. K., Witkamp, B., Poot, M., Meerwaldt, H. B., Kouwenhoven, L. P., van der Zant, H. S. J.
Publikováno v:
Science, 2009 Aug . 325(5944), 1103-1107.
Externí odkaz:
https://www.jstor.org/stable/20544406
Autor:
Kumar, Bhaskar1 (AUTHOR), Rajagopal, Prabhu1 (AUTHOR) prajagopal@iitm.ac.in
Publikováno v:
Scientific Reports. 10/6/2024, Vol. 14 Issue 1, p1-9. 9p.