Zobrazeno 1 - 10
of 33
pro vyhledávání: '"North, J. M."'
Autor:
del Barco, E., Kent, A. D., Hill, S., North, J. M., Dalal, N. S., Rumberger, E. M., Hendrickson, D. N., Chakov, N., Christou, G.
The symmetry of magnetic quantum tunneling (MQT) in the single molecule magnet Mn12-acetate has been determined by sensitive low-temperature magnetic measurements in the pure quantum tunneling regime and high frequency EPR spectroscopy in the presenc
Externí odkaz:
http://arxiv.org/abs/cond-mat/0404390
The variation with microwave frequency and temperature of previously reported anomalous peaks in the EPR spectra of Mn12-acetate, under large transverse fields, reveals that the molecular easy magnetization axes are tilted with respect to the global
Externí odkaz:
http://arxiv.org/abs/cond-mat/0401515
High Frequency electron paramagnetic resonance has been used to observe the magnetic dipole, $\Delta$ M$_s$ = $\pm$ 1, transitions in the $S = 9$ excited state of the single molecule magnet Fe$_8$Br$_8$. A Boltzmann analysis of the measured intensiti
Externí odkaz:
http://arxiv.org/abs/cond-mat/0309159
We present a detailed investigation of the temperature and frequency dependence of the anomalous EPR transitions first observed in Mn12-acetate by Hill et al. [Phys. Rev. Lett. 80, 2453 (1998)]. The most dominant of these transitions manifest themsel
Externí odkaz:
http://arxiv.org/abs/cond-mat/0302052
We present detailed angle-dependent single crystal electron paramagnetic resonance (EPR) data for field rotations in the hard plane of the S=10 single molecule magnet Mn12-acetate. A clear four-fold variation in the resonance positions may be attribu
Externí odkaz:
http://arxiv.org/abs/cond-mat/0301599
Semiconductive and Photoconductive Properties of the Single Molecule Magnets Mn12-Acetate and Fe8Br8
Autor:
North, J. M., Zipse, D., Dalal, N. S., Choi, E. S., Jobiliong, E., Brooks, J. S., Eaton, D. L.
Resistivity measurements are reported for single crystals of Mn12-Acetate and Fe8Br8. Both materials exhibit a semiconductor-like, thermally activated behavior over the 200-300 K range. The activation energy, Ea, obtained for Mn12-Acetate was 0.37 +/
Externí odkaz:
http://arxiv.org/abs/cond-mat/0301515
Detailed single crystal EPR lineshape measurements for the single molecule magnets Fe8Br and Mn12-ac
It is shown that our multi-high-frequency (40-200 GHz) resonant cavity technique yields distortion-free high field EPR spectra for single crystal samples of the uniaxial and biaxial spin S = 10 single molecule magnets (SMMs) [Mn12O12(CH3COO)16(H2O)4]
Externí odkaz:
http://arxiv.org/abs/cond-mat/0112172
Autor:
D. Zipse, North, J. M., Achey, R. M., Dalal, N. S., S. Hill, Edwards, R. S., Choi, E. S., Brooks, J. S.
Publikováno v:
Journal of Applied Physics; 6/1/2004, Vol. 95 Issue 11, p6900-6905, 6p, 1 Chart, 7 Graphs
Autor:
Hill, S., Anderson, N., Wilson, A., Takahashi, S., Chakov, N. E., Murugesu, M., North, J. M., Dalal, N. S., Christou, G.
Publikováno v:
Journal of Applied Physics; 5/15/2005, Vol. 97 Issue 10, p10M510-1-10M510-3, 3p, 3 Graphs
Autor:
North, J. M., Dalal, N. S.
Publikováno v:
Journal of Applied Physics; 5/15/2003, Vol. 93 Issue 10, p7092, 3p, 1 Diagram, 3 Graphs