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Field-induced quantum soliton lattice in a frustrated two-leg spin-1/2 ladder

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

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Microscopic properties of the 'pinwheel' kagome compound Rb_2Cu_3SnF_{12}

Autor: Grbić, M. S., Krämer, S., Berthier, C., Trousselet, F., Cépas, O., Tanaka, H., Horvatić, M.

Using $^{63,65}$Cu nuclear magnetic resonance (NMR) in magnetic fields up to 30 T we study the microscopic properties of the 12-site valence-bond-solid ground state in the "pinwheel" kagome compound Rb$_2$Cu$_3$SnF$_{12}$. We find that the ground sta

Externí odkaz: http://arxiv.org/abs/1211.1443

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Quantum-critical spin dynamics in quasi-one-dimensional antiferromagnets

Autor: Mukhopadhyay, S., Klanjšek, M., Grbić, M. S., Blinder, R., Mayaffre, H., Berthier, C., Horvatić, M., Continentino, M. A., Paduan-Filho, A., Chiari, B., Piovesana, O.

Publikováno v: Phys. Rev. Lett. 109, 177206 (2012)

By means of nuclear spin-lattice relaxation rate 1/T1, we follow the spin dynamics as a function of the applied magnetic field in two gapped one-dimensional quantum antiferromagnets: the anisotropic spin-chain system NiCl2-4SC(NH2)2 and the spin-ladd

Externí odkaz: http://arxiv.org/abs/1208.6117

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Temperature range of superconducting fluctuations above T_c in YBa_2Cu_3O_{7-\delta} single crystals

Autor: Grbic, M. S., Pozek, M., Paar, D., Hinkov, V., Raichle, M., Haug, D., Keimer, B., Barisic, N., Dulcic, A.

Publikováno v: Phys. Rev. B 83, 144508 (2011)

Microwave absorption measurements in magnetic fields from zero up to 16 T were used to determine the temperature range of superconducting fluctuations above the superconducting critical temperature T_c in YBa_2Cu_3O_{7-\delta}. Measurements were perf

Externí odkaz: http://arxiv.org/abs/1005.4789

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Upper critical field, penetration depth, and depinning frequency of the novel high-temperature superconductor LaFeAsO$_{0.9}$F$_{0.1}$ studied by microwave surface impedance

Autor: Narduzzo, A., Grbić, M. S., Požek, M., Dulčić, A., Paar, D., Kondrat, A., Hess, C., Hellmann, I., Klingeler, R., Werner, J., Köhler, A., Behr, G., Büchner, B.

Publikováno v: Physical Review B, 78, 012507 (2008)

Temperature and magnetic field dependent measurements of the microwave surface impedance of superconducting LaFeAsO$_{0.9}$F$_{0.1}$ (\Tc $\approx$ 26K) reveal a very large upper critical field ($B_{\rm c2} \approx 56$T) and a large value of the depi

Externí odkaz: http://arxiv.org/abs/0806.1443

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Microwave response of thin niobium films under perpendicular static magnetic fields

Autor: Janjusevic, D., Grbic, M. S., Pozek, M., Dulcic, A., Paar, D., Nebendahl, B., Wagner, T.

Publikováno v: Phys. Rev. B 74 (2006) 104501

The microwave response of high quality niobium films in a perpendicular static magnetic field has been investigated. The complex frequency shift was measured up to the upper critical fields. The data have been analyzed by the effective conductivity m

Externí odkaz: http://arxiv.org/abs/cond-mat/0602168

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