Zobrazeno 1 - 10
of 111
pro vyhledávání: '"K. Nummila"'
Publikováno v:
Allen, M, Jaakkola, K, Nummila, K & Seppä, H 2009, ' Applicability of metallic nanoparticle inks in RFID applications ', IEEE Transactions on Components and Packaging Technologies, vol. 32, no. 2, pp. 325-332 . https://doi.org/10.1109/TCAPT.2008.2010505
Radio frequency identification (RFID) antennas for HF and UHF frequencies are ink-jet printed using commercially available silver nanoparticle ink. Quality factors of 5.3 and 9.4 are obtained for coil antennas targeted for 13.56 MHz when the printing
Publikováno v:
Journal of Materials Science. 36:839-844
We present a systematic investigation of conditions for heat treatment of Rh with the aim of increasing the residual resistivity ratio (RRR). The maximal value of RRR for a 25 μm thick foil was found to be 1050 and the optimal treatment conditions w
Publikováno v:
Journal of Low Temperature Physics. 123:65-102
We performed SQUID-NMR measurements on a rhodium single crystal at ultra-low nuclear-spin temperatures. With initial polarizations up to p=0.95, the antiferromagnetic tendency was clear, but surprisingly no indication of actual nuclear magnetic order
Publikováno v:
Journal of Low Temperature Physics. 120:121-150
A new cascade nuclear demagnetization cryostat has been designed and constructed. Our aim was to build a versatile, modular cryostat, with a large experimental space providing an excellent platform for various types of ultralow temperature measuremen
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 3:224-228
We investigate electron thermalization of tunnel junction arrays installed in a powerful dilution refrigerator whose mixing chamber can produce lattice temperatures down to 3 mK. The on-chip Coulomb blockade thermometers (CBT) against other thermomet
Publikováno v:
Journal of Low Temperature Physics. 112:73-116
Nuclear antiferromagnetism in fcc silver metal, already investigated by NMR measurements, has been studied in a single crystal of109Ag by neutron absorption and diffraction techniques. Below the Neel temperature TN, a (001) Bragg reflection with a re
Publikováno v:
Zeitschrift für Physik B Condensed Matter. 102:439-447
We have utilized both neutron transmission and neutron diffraction to measure the spin polarization in a single crystal of 109Ag, whereby the nuclear spin temperature could be obtained. Transmission of a polarized neutron beam provides an accurate an
Autor:
Kurt Nørgaard Clausen, K. Lefmann, Juha Tuoriniemi, A. Metz, Olli V. Lounasmaa, F. B. Rasmussen, M. Steiner, R. T. Vuorinen, K. K. Nummila, K. Siemensmeyer
Publikováno v:
Physica B: Condensed Matter. :506-510
Nuclear magnetic order in copper and silver has been investigated by neutron diffraction. Antiferromagnetic order is observed in these simple, diamagnetic metals at temperatures below 50 nK and 560 pK, respectively. Both crystallize in the FCC-symmet
Publikováno v:
Zeitschrift für Physik B Condensed Matter. 102:433-438
We have studied spin-lattice relaxation in silver metal at temperatures and magnetic fields beyond the validity of the normal Korringa relation τ1 = κ/Tc using transmission of polarized and unpolarized neutrons. For the Korringa constant of 109Ag w
Publikováno v:
McCaffrey, C, Häkli, J, Hirvonen, M, Huhtinen, I, Nummila, K & Lehikoinen, T 2013, Magnetically coupled wireless communication for buried environmental sensor . in 12th International Conference on Environment and Electrical Engineering, EEEIC 2013 . IEEE Institute of Electrical and Electronic Engineers, pp. 341-345, 12th International Conference on Environment and Electrical Engineering, EEEIC 2013, Wroclaw, Poland, 5/05/13 . https://doi.org/10.1109/EEEIC.2013.6549539
Ambient sensors are finding their way into our lives and the world around us enabling a great deal of real time environmental monitoring applications. Solid medium, like soil, compost, ice and ore, with relatively high conductivity and non-uniform di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8531293b2566f4e95b71d160439cd92a
https://cris.vtt.fi/en/publications/1bee1f2b-10a6-4503-adbe-3b2bc1d2dd89
https://cris.vtt.fi/en/publications/1bee1f2b-10a6-4503-adbe-3b2bc1d2dd89