Zobrazeno 1 - 10
of 299
pro vyhledávání: '"Luban, M."'
We theoretically and numerically investigate spin waves that occur in systems of classical magnetic dipoles that are arranged at the vertices of a regular polygon and interact solely via their magnetic fields. There are certain limiting cases that ca
Externí odkaz:
http://arxiv.org/abs/1609.07264
Autor:
Schnack, J., Todea, A. M., Müller, A., Nojiri, H., Yeninas, S., Furukawa, Y., Prozorov, R., Luban, M.
The magnetic properties and spin dynamics of the spin frustrated polyoxometalate {W72V30}, where 30 V^{4+} ions (s = 1/2) occupy the sites of an icosidodecahedron, have been investigated by low temperature magnetization, magnetic susceptibility, prot
Externí odkaz:
http://arxiv.org/abs/1304.2603
Autor:
Vaknin, D., Garlea, V. O., Demmel, F., Mamontov, E., Nojiri, H., Martin, C., Chiorescu, I., Qiu, Y., Koegerler, P., Fielden, J., Engelhardt, L., Rainey, C., Luban, M.
Publikováno v:
J. Phys.: Condens. Matter 22, 466001 (2010)
Inelastic neutron scattering in variable magnetic field and high-field magnetization measurements, at the milikelvin temperature range, were performed to gain insight into the low-energy magnetic excitation spectrum and the field-induced level crossi
Externí odkaz:
http://arxiv.org/abs/1011.0364
Autor:
Schnack, J., Brueger, M., Luban, M., Koegerler, P., Morosan, E., Fuchs, R., Modler, R., Nojiri, Hiroyuki, Rai, Ram C., Cao, Jinbo, Musfeldt, J. L., Wei, Xing
Publikováno v:
Phys. Rev. B 73 (2006) 094401
We investigate the bulk magnetic, electron paramagnetic resonance, and magneto-optical properties of {Ni4Mo12}, a magnetic molecule with antiferromagnetically coupled tetrahedral {Ni4Mo12} in a diamagnetic molybdenum matrix. The low-temperature magne
Externí odkaz:
http://arxiv.org/abs/cond-mat/0509476
Autor:
Garlea, V. O., Nagler, S. E., Zarestky, J. L., Stassis, C., Vaknin, D., Kogerler, P., McMorrow, D. F., Niedermayer, C., Tennant, D. A., Lake, B., Qiu, Y., Exler, M., Schnack, J., Luban, M.
We report cold-neutron inelastic neutron scattering measurements on deuterated samples of the giant polyoxomolybdate magnetic molecule {Mo72Fe30}. The 30 s = 5/2 Fe+3 ions occupy the vertices of an icosidodecahedron, and interact via antiferromagneti
Externí odkaz:
http://arxiv.org/abs/cond-mat/0505066
Hysteresis loops and adiabatic Landau-Zener-St\'uckelberg transitions in the magnetic molecule V$_6$
Publikováno v:
Phys. Rev. Lett. 94, 147204 (2005)
We have observed hysteresis loops and abrupt magnetization steps in the magnetic molecule V$_6$, where each molecule comprises a pair of identical spin triangles, in the temperature range 1-5 K for external magnetic fields $B$ with sweep rates of sev
Externí odkaz:
http://arxiv.org/abs/cond-mat/0502114
Publikováno v:
Phys. Rev. Lett. 94, 207203 (2005)
We have found a class of zero-dimensional geometrically frustrated Heisenberg spin systems exhibiting anomalous behavior in an external magnetic field B similar to that occuring in geometrically frustrated planar antiferromagnetic lattices. Our calcu
Externí odkaz:
http://arxiv.org/abs/cond-mat/0405405
Publikováno v:
Europhysics Letters 56 (2001) 863
We derive the low temperature properties of the molecular magnet Mo72Fe30, where 30 Fe(3+) paramagnetic ions occupy the sites of an icosidodecahedron and interact via isotropic nearest-neighbour antiferromagnetic Heisenberg exchange. The key idea of
Externí odkaz:
http://arxiv.org/abs/cond-mat/0110149
Publikováno v:
In Journal of Magnetism and Magnetic Materials 2007 310(2) Part 2:1203-1205
Publikováno v:
In Journal of Magnetism and Magnetic Materials May 2004 272-276 Supplement:E721-E723