Results 61 to 70 of about 345,502 (292)

Kondo effect in a quantum critical ferromagnet

, 1999
We study the Heisenberg ferromagnetic spin chain coupled with a boundary impurity. Via Bethe ansatz solution, it is found that (i) for J>0, the impurity spin behaves as a diamagnetic center and is completely screened by 2S bulk spins in the ground state,
A. Furusaki, A. I. Larkin, A. Kapustin, A. M. Tsvelik, A. O. Gogolin, A. Tsvelik, A. W. W. Ludwig, A. Zvyagin, C. Gonzalez-Buxton, C. L. Kane, C. L. Kane, C. N. Yang, C. R. Cassanello, C. R. Cassanello, D. Withoff, D.-H. Lee, E. K. Sklyanin, F. Steglich, H. Frahm, H. von Löhneysen, I. Affleck, J. Voit, Jianhui Dai, M. Takahashi, M. Takahashi, N. Andrei, N. Andrei, N. D. Mathur, P. Fröjdh, P. Noziéres, P. Noziéres, P. Schlottmann, P. Schlottmann, S. L. Sondhi, S. Skorik, Y. Wang, Y. Wang, Y. Wang, Yupeng Wang   +38 more
core   +1 more source

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

Vortices and impurities [PDF]

Journal of High Energy Physics, 2014
Abstract We describe the BPS dynamics of vortices in the presence of impurities. We argue that a moduli space of solitons survives the addition of both electric and magnetic impurities. However, dynamics on the moduli space is altered.
Tong, David, Wong, Kenny
openaire   +2 more sources

Green's function approach to transport through a gate-all-around Si nanowire under impurity scattering

, 2007
We investigate transport properties of gate-all-around Si nanowires using non-equilibrium Green's function technique. By taking into account of the ionized impurity scattering we calculate Green's functions self-consistently and examine the effects of ...
D. Ahn, E. O. Johnson, G. Ingold, H. Sakaki, Jung Hyun Oh, K. H. Cho, R. A. Smith, R. Lake, S. Datta, S. W. Hwang, Y. S. Yu   +10 more
core   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Global Perspectives on Mycotoxin Reference Materials (Part I): Insights from Multi-Supplier Comparison Study Including Aflatoxin B1, Deoxynivalenol and Zearalenone

Toxins
We conducted a comprehensive examination of liquid mycotoxin reference standards. A total of 30 different standards were tested, each containing 10 samples of three distinct substances: Aflatoxin B1, Deoxynivalenol, and Zearalenone.
David Steiner, Tibor Bartók, Michael Sulyok, András Szekeres, Mónika Varga, Levente Horváth, Helmut Rost   +6 more
doaj   +1 more source

Effect of conduction electron interactions on Anderson impurities

, 1995
The effect of conduction electron interactions for an Anderson impurity is investigated in one dimension using a scaling approach. The flow diagrams are obtained by solving the renormalization group equations numerically.
A. Schiller, C. Sire, F. D. M. Haldane, F. D. M. Haldane, G. M. Zhang, I. Perakis, I. Perakis, J. Solyom, N. Andrei, P. B. Wiegmann, P. Fulde, Q. Si, Q. Si, T. Brugger, T. Giamarchi, Y. M. Li   +15 more
core   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

Potential of a neutral impurity in a large $^4$He clusters

, 1999
This paper presents an analysis of the motion of an neutral impurity species in a nanometer scale $^4$He cluster, extending a previous study of the dynamics of an ionic impurity.
Lehmann, Kevin K.
core   +3 more sources