Zobrazeno 1 - 10
of 623
pro vyhledávání: '"Ajiro, Y."'
Autor:
Bianchi, A., Carretta, S., Santini, P., Amoretti, G., Furukawa, Y., Kiuchi, K., Ajiro, Y., Narumi, Y., Kindo, K., Lago, J., Micotti, E., Arosio, P., Lascialfari, A., Borsa, F., Timco, G., Winpenny, R. E. P.
We study the magnetization and the spin dynamics of the Cr$_7$Ni ring-shaped magnetic cluster. Measurements of the magnetization at high pulsed fields and low temperature are compared to calculations and show that the spin Hamiltonian approach provid
Externí odkaz:
http://arxiv.org/abs/0808.2621
Autor:
Uemura, Y. J., Aczel, A. A., Ajiro, Y., Carlo, J. P., Goko, T., Goldfeld, D. A., Kitada, A., Luke, G. M., MacDougall, G. J., Mihailescu, I. G., Rodriguez, J. A., Russo, P. L., Tsujimoto, Y., Wiebe, C. R., Williams, T. J., Yamamoto, T., Yoshimura, K., Kageyama, H.
Publikováno v:
Phys. Rev. B 80, 174408 (2009)
We report muon spin relaxation ($\mu$SR) and magnetic susceptibility measurements on Cu(Cl,Br)La(Nb,Ta)$_{2}$O$_{7}$, which demonstrate: (a) the absence of static magnetism in (CuCl)LaNb$_{2}$O$_{7}$ down to 15 mK confirming a spin-gapped ground stat
Externí odkaz:
http://arxiv.org/abs/0806.2021
Publikováno v:
J. Phys. Soc. Jpn. 77, 104705 (2008)
We report nuclear magnetic resonance (NMR) studies in the antiferromagnetic state of the quasi-two-dimensional (CuBr)LaNb2O7. The NMR spectra at zero magnetic field and 4.2 K indicate a unique Cu and Br sites with an internal field of 5.7 T (at Cu) a
Externí odkaz:
http://arxiv.org/abs/0805.2218
Autor:
Yoshida, M., Ogata, N., Takigawa, M., Yamaura, J., Ichihara, M., Kitano, T., Kageyama, H., Ajiro, Y., Yoshimura, K.
Publikováno v:
J. Phys. Soc. Jpn. 76, 104703 (2007)
We report magnetization, nuclear magnetic resonance (NMR), nuclear quadrupole resonance (NQR), and transmission electron microscopy (TEM) studies on the quasi-two-dimensional spin-gap system (CuCl)LaNb2O7, a possible candidate for the J1-J2 model on
Externí odkaz:
http://arxiv.org/abs/0706.3559
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
Autor:
Grenier, B., Inagaki, Y., Regnault, L. P., Wildes, A., Asano, T., Ajiro, Y., Lhotel, E., Paulsen, C., Ziman, T., Boucher, J. P.
Field-induced magnetic order has been investigated in detail in the interacting spin 3/2 dimer system Cs_3Cr_2Br_9. Elastic and inelastic neutron scattering measurements were performed up to H = 6 T, well above the critical field H_c1 = 1.5 T. The or
Externí odkaz:
http://arxiv.org/abs/cond-mat/0403215
Publikováno v:
Phys. Rev. B 68, 094432 (2003)
We present the results of measurements of the thermal conductivity $\kappa$ of the spin S=1 chain compound AgVP_2S_6 in the temperature range between 2 and 300 K and with the heat flow directed either along or perpendicular to the chain direction. Th
Externí odkaz:
http://arxiv.org/abs/cond-mat/0307383
Considering experimental results obtained on three prototype compounds, TMMC, CsCoCl3 (or CsCoBr3) and Cu Benzoate, we discuss the importance of non-linear excitations in the physics of quantum (and classical) antiferromagnetic spin chains.
Comm
Comm
Externí odkaz:
http://arxiv.org/abs/cond-mat/0201298
Publikováno v:
Phys. Rev. Lett., 84 (2000) 5880
A new elementary-excitation, the so called "breather excitation", is observed directly by millimeter-submillimeter wave electron spin resonance (ESR) in the Heisenberg quantum spin-chain Cu benzoate, in which a field-induced gap is found recently by
Externí odkaz:
http://arxiv.org/abs/cond-mat/9911094
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