Search Results - "Hemberger, J"

Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples by Roggenbuck, A, Schmitz, H, Deninger, A, Mayorga, I Cámara, Hemberger, J, Güsten, R, Grüninger, M

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Relaxor ferroelectricity and colossal magnetocapacitive coupling in ferromagnetic CdCr2S4 by HEMBERGER, J, LUNKENHEIMER, P, FICHTI, R, KRUG VON NIDDA, H.-A, TSURKAN, V, LOIDI, A

“…Materials in which magnetic and electric order coexist--termed 'multiferroics' or 'magnetoelectrics'--have recently become the focus of much research. In…”
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Large magnetostriction and negative thermal expansion in the frustrated antiferromagnet ZnCr2Se4 by Hemberger, J, von Nidda, H-A Krug, Tsurkan, V, Loidl, A

“…A detailed investigation of ZnCr2Se4 is presented which is dominated by strong ferromagnetic exchange but orders antiferromagnetically at TN=21 K. Specific…”
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Critical slowing down near the multiferroic phase transition in MnWO4 by Niermann, D, Grams, C P, Becker, P, Bohatý, L, Schenck, H, Hemberger, J

“…By using broadband dielectric spectroscopy in the radio frequency and microwave range, we studied the magnetoelectric dynamics in the multiferroic chiral…”
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Terahertz Measurements on Subwavelength-Size Samples Down to the Tunneling Limit by Maluski, D., Cámara Mayorga, I., Hemberger, J., Grüninger, M.

“…For terahertz spectroscopy on single crystals, the wavelength λ often is comparable to the size of the studied samples, emphasizing diffraction effects. Using…”
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Relaxations as key to the magnetocapacitive effects in the perovskite manganites by Schrettle, F, Lunkenheimer, P, Hemberger, J, Ivanov, V Yu, Mukhin, A A, Balbashov, A M, Loidl, A

“…We present a detailed dielectric study of the relaxation effects that occur in several perovskite rare-earth manganites, including the multiferroics TbMnO(3)…”
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Observation of a griffiths phase in paramagnetic La1-xSrxMnO3 by Deisenhofer, J, Braak, D, Krug von Nidda, H-A, Hemberger, J, Eremina, R M, Ivanshin, V A, Balbashov, A M, Jug, G, Loidl, A, Kimura, T, Tokura, Y

“…We report on the discovery of a novel triangular phase regime in the system La1-xSrxMnO3 by means of electron spin resonance and magnetic susceptibility…”
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Colossal magnetocapacitance and colossal magnetoresistance in HgCr2S4 by Weber, S, Lunkenheimer, P, Fichtl, R, Hemberger, J, Tsurkan, V, Loidl, A

“…We present a detailed study of the dielectric and charge transport properties of the antiferromagnetic cubic spinel HgCr2S4. Similar to the findings in…”
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Spin-phonon coupling in antiferromagnetic chromium spinels by Rudolf, T, Kant, Ch, Mayr, F, Hemberger, J, Tsurkan, V, Loidl, A

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Self-normalizing phase measurement in multimode terahertz spectroscopy based on photomixing of three lasers by Thirunavukkuarasu, K., Langenbach, M., Roggenbuck, A., Vidal, E., Schmitz, H., Hemberger, J., Grüninger, M.

“…Photomixing of two near-infrared lasers is well established for continuous-wave terahertz spectroscopy. Photomixing of three lasers allows us to measure at…”
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Geometric frustration in the cubic spinels MAl2O4(M=Co, Fe, and Mn) by TRISTAN, N, HEMBERGER, J, KRIMMEL, A, VON NIDDA, H-A. Krug, TSURKAN, V, LOIDL, A

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Polar and Magnetic Layered A‑Site and Rock Salt B‑Site-Ordered NaLnFeWO6 (Ln = La, Nd) Perovskites by Retuerto, M., Li, M. R., Ignatov, A., Croft, M., Ramanujachary, K. V., Chi, S., Hodges, J. P., Dachraoui, W., Hadermann, J., Tran, T. Thao, Halasyamani, P. Shiv, Grams, C. P., Hemberger, J., Greenblatt, M.

“…We have expanded the double perovskite family of materials with the unusual combination of layered order in the A sublattice and rock salt order over the B…”
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Spin-driven phonon splitting in bond-frustrated ZnCr2S4 by Hemberger, J, Rudolf, T, Krug von Nidda, H-A, Mayr, F, Pimenov, A, Tsurkan, V, Loidl, A

“…Magnetic susceptibility, specific heat, thermal expansion, and IR spectroscopy provide experimental evidence that the two subsequent antiferromagnetic…”
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Orbital freezing and orbital glass state in FeCr2S4 by FICHTL, R, TSURKAN, V, LUNKENHEIMER, P, HEMBERGER, J, FRITSCH, V, KRUG VON NIDDA, H.-A, SCHEIDT, E.-W, LOIDL, A

“…Low-temperature specific heat measurements and dielectric spectroscopy have been performed on polycrystalline and single-crystalline FeCr2S4, the single…”
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Group Delay in THz Spectroscopy with Ultra-Wideband Log-Spiral Antennae by Langenbach, M., Roggenbuck, A., Cámara Mayorga, I., Deninger, A., Thirunavukkuarasu, K., Hemberger, J., Grüninger, M.

“…We report on the group delay observed in continuous-wave terahertz spectroscopy based on photomixing with phase-sensitive homodyne detection. We discuss the…”
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Giant dielectric response in the one-dimensional charge-ordered semiconductor (NbSe4)3I by Staresinić, D, Lunkenheimer, P, Hemberger, J, Biljaković, K, Loidl, A

“…We report on broadband dielectric spectroscopy on the one-dimensional semiconductor (NbSe4)3I. Below the structural phase transition close to 270 K, which is…”
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Spin dynamics in the low-dimensional magnet TiOCl by Zakharov, D. V., Deisenhofer, J., Krug von Nidda, H.-A., Lunkenheimer, P., Hemberger, J., Hoinkis, M., Klemm, M., Sing, M., Claessen, R., Eremin, M. V., Horn, S., Loidl, A.

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Evidence for Jahn-Teller distortions at the antiferromagnetic transition in LaTiO3 by Hemberger, J, Krug von Nidda, H-A, Fritsch, V, Deisenhofer, J, Lobina, S, Rudolf, T, Lunkenheimer, P, Lichtenberg, F, Loidl, A, Bruns, D, Büchner, B

“…LaTiO3 is known as a Mott insulator which orders antiferromagnetically at T(N)=146 K. We report on results of thermal expansion and temperature dependent x-ray…”
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Glassy freezing of orbital dynamics in FeCr2S4 and FeSc2S4 by FICHTL, R, LUNKENHEIMER, P, HEMBERGER, J, TSURKAN, V, LOIDL, A

“…We report on a dielectric investigation of the glass-like freezing of the orbital reorientation-dynamics, recently found for the crystalline sulfo-spinels…”
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Orbital physics in sulfur spinels: ordered, liquid and glassy ground states by Büttgen, N, Hemberger, J, Fritsch, V, Krimmel, A, Mücksch, M, Krug von Nidda, H-A, Lunkenheimer, P, Fichtl, R, Tsurkan, V, Loidl, A

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