Výsledky vyhledávání - "Brockmann, M."

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Anisotropic magnetic interactions and spin dynamics in the spin-chain compound Cu(py)$_2$Br$_2$: An experimental and theoretical study

Autor: Zeisner, J., Brockmann, M., Zimmermann, S., Weiße, A., Thede, M., Ressouche, E., Povarov, K. Yu., Zheludev, A., Klümper, A., Büchner, B., Kataev, V., Göhmann, F.

Publikováno v: Phys. Rev. B 96, 024429 (2017)

We compare theoretical results for electron spin resonance (ESR) properties of the Heisenberg-Ising Hamiltonian with ESR experiments on the quasi-one-dimensional magnet Cu(py)$_2$Br$_2$ (CPB). Our measurements were performed over a wide frequency and

Externí odkaz: http://arxiv.org/abs/1704.05705

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Orbital-Exchange and Fractional Quantum Number Excitations in an f-electron Metal Yb$_2$Pt$_2$Pb

Autor: Wu, L. S., Gannon, W. J., Zaliznyak, I. A., Tsvelik, A. M., Brockmann, M., Caux, J. -S., Kim, M. S., Qiu, Y., Copley, J. R. D., Ehlers, G., Podlesnyak, A., Aronson, M. C.

Publikováno v: Science 352, 1206-1210 (2016)

Exotic quantum states and fractionalized magnetic excitations, such as spinons in one-dimensional chains, are generally viewed as belonging to the domain of 3d transition metal systems with spins 1/2. Our neutron scattering experiments on the 4f-elec

Externí odkaz: http://arxiv.org/abs/1606.01309

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On the absorption of microwaves by the one-dimensional spin-1/2 Heisenberg-Ising magnet

Autor: Brockmann, M., Göhmann, F., Karbach, M., Klümper, A., Weiße, A.

Publikováno v: Phys. Rev. B 85, 134438 (2012)

We analyze the absorption of microwaves by the Heisenberg-Ising chain combining exact calculations, based on the integrability of the model, with numerical calculations. Within linear response theory the absorbed intensity is determined by the imagin

Externí odkaz: http://arxiv.org/abs/1201.6523

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