Zobrazeno 1 - 10
of 84
pro vyhledávání: '"S. Valfells"'
Autor:
S. Valfells, Jón Helgi Egilsson
Publikováno v:
Proceedings of the IEEE. 104:1674-1678
Discusses the key features and applications supported by Bitcoin. Also examines the use of financial mining within the Bitcoin network. A crucial part of this new financial etwork is a computational process known as mining. Bitcoin refers to the enti
Autor:
Taichi Terashima, S. Valfells, Z. Fisk, S. Uji, Stephen Hill, G.J. Athas, P.S. Sandhu, Hidekazu Aoki, James S. Brooks, J. L. Sarrao, J.D. Goettee
Publikováno v:
Physical Review B. 55:2018-2031
The quasi-two-dimensional metal {eta}-Mo{sub 4}O{sub 11} undergoes two successive charge-density-wave transitions at 109 and 30 K, with corresponding changes in the electronic structure. Measurements of the magnetoresistance, Hall effect, and magneti
Autor:
Jun-ichi Yamada, S. Valfells, H. Anzai, Madoka Tokumoto, Satoshi Takasaki, Zijian Wang, James S. Brooks
Publikováno v:
Physical Review B. 54:16413-16416
We have studied the temperature dependence of the integer quantum Hall transitions in the molecular crystal (TMTSF)$_2$PF$_6$. We find that the transition width between the quantum Hall plateaus does not exhibit the universal power-law scaling behavi
Autor:
S. Valfells, G.J. Athas, James S. Brooks, S.J. Klepper, Yukio Tanaka, T. Kinoshita, X. Chen, Charles C. Agosta, H. Anzai, Madoka Tokumoto, N. Kinoshita
Publikováno v:
Physical Review B. 52:14457-14478
We have used the magnetoresistance and the Shubnikov--de Haas effect to study the pressure-dependent ground states of \ensuremath{\alpha}-(BEDT-TTF${)}_{2}$MHg(SCN${)}_{4}$ [where BEDT-TTF is alpha-bis(ethylenedithio) tetrathiafulvalene-M (=potassium
Autor:
S.J. Klepper, James S. Brooks, Tatsue Kinoshita, Yukio Tanaka, S. Valfells, Nobumori Kinoshita, Madoka Tokumoto, H. Anzai, Stanley W. Tozer
Publikováno v:
Solid State Communications. 94:499-502
We have measured the change in the fundamental Shubnikov-de Haas (SdH) frequency of (ET)2TlHg(SCN)4 in the pressure range 0–5.0 GPa. We find that the SdH frequency increases linearly in the pressure range 0–3.0 GPa with dF dP = 110±20 T/GPa ; at
Autor:
James S. Brooks, N. Kinoshita, Madoka Tokumoto, S.J. Klepper, Yasumoto Tanaka, T. Kinoshita, S. Valfells, G.J. Athas
Publikováno v:
Physical Review B. 50:17713-17716
We have used angular-dependent magnetoresistance to probe the anomalous low-temperature state in the two-band (quasi-one- and -two-dimensional) organic conductor family [alpha]-(BEDT-TTF)[sub 2][ital M]Hg(SCN)[sub 4], where BEDT-TTF stands for bis(et
Autor:
S. Valfells, Madoka Tokumoto, H. Anzai, G.J. Athas, T. Kinoshita, X. Chen, Yasumoto Tanaka, S.J. Klepper, C.E. Campos, James S. Brooks, N. Kinoshita
Publikováno v:
Physica B: Condensed Matter. 201:449-458
Since the discovery of a kink in the magnetoresistance of (BEDT-TTF)2KHg(SCN)4 by the Tokyo group [Osada et al., Phys. Rev. B41 (1990) 5428] several years ago, this family (where K may be replaced by NH4, Tl, or Rb) has become one of the most excitin
Autor:
Yasumoto Tanaka, T. Kinoshita, H. Anzai, Nobumori Kinoshita, S.J. Klepper, James S. Brooks, S.W. Tozer, Madoka Tokumoto, X. Chen, S. Valfells
Publikováno v:
International Conference on Science and Technology of Synthetic Metals.
Summary form only given. We report the pressure dependence of the low temperature - high magnetic field properties of /spl alpha/-(BEDT-TTF)/sub 2/MHg(SCN)/sub 4/ (M =K, Rb, Tl, or NH/sub 4/). Both pressure clamp (to 10 kbar) and diamond anvil (to 25
Publikováno v:
Synthetic Metals. 86:1963-1964
The molecular conductor η-Mo4O11 undergoes two successive charge density wave transitions at 109 K and 30 K, with corresponding changes in the electronic structure. The resulting low temperature Fermi surface has only very small closed orbits at the
Autor:
Yukio Tanaka, T. Kinoshita, Shinya Uji, Michael J. Naughton, Madoka Tokumoto, S. Valfells, Nobumori Kinoshita, I.J. Lee, James S. Brooks
Publikováno v:
Synthetic Metals. 86:2039-2040
The Fermi surface of the charge transfer salt α-(BEDT-TTF)2KHg(SCN)4 includes both quasi-one and quasi-two dimensional orbits. Below 8 K, the open orbits under go a Peierls-like transition. Here the angular dependent magnetoresistance exhibits perio