Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Casola, F."'
Two Coupled Chains are Simpler than One: Field-induced Chirality in a Frustrated Quantum Spin Ladder
Autor:
Pikulski, M., Shiroka, T., Casola, F., Reyes, A. P., Kuhns, P. L., Wang, S., Ott, H. -R., Mesot, J.
Publikováno v:
Sci Rep 10, 15862 (2020)
Although the frustrated spin chain (zigzag chain) is a Drosophila of frustrated magnetism, the understanding of a pair of coupled zigzag chains (frustrated spin ladder) in a magnetic field is incomplete. We address this problem through nuclear magnet
Externí odkaz:
http://arxiv.org/abs/1911.05011
Autor:
Zhang, H., Ku, M. J. H., Casola, F., Du, C. H., van der Sar, T., Onbasli, M. C., Ross, C. A., Tserkovnyak, Y., Yacoby, A., Walsworth, R. L.
Publikováno v:
Phys. Rev. B 102, 024404 (2020)
Coherent, self-sustained oscillation of magnetization in spin-torque oscillators (STOs) is a promising source for on-chip, nanoscale generation of microwave magnetic fields. Such fields could be used for local excitation of spin-wave resonances, cont
Externí odkaz:
http://arxiv.org/abs/1810.07306
Publikováno v:
Phys. Rev. B. 88, 054422 (2013) [9 pages]
The disordered quasi-1D magnet BaCu2SiGeO7 is considered as one of the best physical realizations of the random Heisenberg chain model, which features an irregular distribution of the exchange parameters and whose ground state is predicted to be the
Externí odkaz:
http://arxiv.org/abs/1307.2814
Autor:
Casola, F., Shiroka, T., Feiguin, A., Wang, S., Grbić, M. S., Horvatić, M., Krämer, S., Mukhopadhyay, S., Berthier, C., Ott, H. -R., Rønnow, H. M., Rüegg, Ch., Mesot, J.
Publikováno v:
Phys. Rev. Lett. 110, 187201 (2013) [5 pages]
The field-induced quantum phase transitions (QPT) of the spin ladder material Bi(Cu(1-x)Znx)2PO6 have been investigated via 31P nuclear magnetic resonance (NMR) on single-crystal samples with x = 0 and x = 0.01. Measurements at temperatures between 0
Externí odkaz:
http://arxiv.org/abs/1211.5522
Publikováno v:
Phys. Rev. B 87, 054427 (2013)
We present a detailed analysis of the phase diagram of antiferromagnets with competing exchange-driven and field-induced order parameters. By using the quasi-1D antiferromagnet BaCu_2Si_2O_7 as a test case, we demonstrate that a model based on a Ginz
Externí odkaz:
http://arxiv.org/abs/1209.4216
Autor:
Casola, F., Shiroka, T., Glazkov, V., Feiguin, A., Dhalenne, G., Revcolevschi, A., Zheludev, A., Ott, H. -R., Mesot, J.
Publikováno v:
Phys. Rev. B 86, 165111 (2012)
Heisenberg spin-1/2 chain materials are known to substantially alter their static and dynamic properties when experiencing an effective transverse staggered field originating from the varying local environment of the individual spins. We present a te
Externí odkaz:
http://arxiv.org/abs/1207.1073
Publikováno v:
Phys. Rev. Lett. 106, 137202 (2011)
Nuclear magnetic resonance (NMR) measurements of the 29Si spin-lattice relaxation time T1 were used to probe the spin-1/2 random Heisenberg chain compound BaCu2(Si(1-x)Gex)2O7. Remarkable differences between the pure (x = 0) and the fully random (x =
Externí odkaz:
http://arxiv.org/abs/1012.0731
Publikováno v:
Phys. Rev. Lett. 105, 067203 (2010), 4 pages
Nuclear magnetic resonance and magnetization measurements were used to probe the magnetic features of single-crystalline Bi(Cu(1-x)Znx)2PO6 with 0
Externí odkaz:
http://arxiv.org/abs/1005.3708
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Akademický článek
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