Kant, Ch., Deisenhofer, J., Günther, A., Schrettle, F., Rotter, M., Johrendt, D., ...
We report on specific heat measurements in Ba$_{1-x}$K$_x$Fe$_{2}$As$_{2}$ ($x\le 0.6$). For the underdoped sample with $x=0.2$ both the spin-density-wave transition at $T = 100$ K and the...
Dengler, E., Deisenhofer, J., Khim, Seunghyun, Kim, J. S., Kim, Kee Hoon, ...
Electron spin resonance measurements in EuFe2As2 single crystals revealed an absorption spectrum of a single resonance with Dysonian lineshape. Above the spin-density wave transition at T_SDW = 190 K...
Kant, Ch., Deisenhofer, J., Rudolf, T., Mayr, F., Schrettle, F., Loidl, A., ...
We report on infrared, Raman, magnetic susceptibility, and specific heat measurements on CdCr2O4 and ZnCr2O4 single crystals. We estimate the nearest-neighbor and next-nearest neighbor exchange...
Magnetic susceptibility of the frustrated spinels ZnCr2O4, MgCr2O4 and CdCr2O4 (2009)
Kant, Ch., Deisenhofer, J., Tsurkan, V., Loidl, A.
We analyzed the magnetic susceptibilities of several Cr spinels using two recent models for the geometrically frustrated pyrochlore lattice, the Quantum Tetrahedral Mean Field model and a Generalized...
Far-infrared optical excitations in multiferroic TbMnO_3 (2009)
Schmidt, M., Kant, Ch., Rudolf, T., Mayr, F., Mukhin, A. A., Balbashov, A. M., ...
We provide a detailed study of the reflectivity of multiferroic TbMnO_3 for wave numbers from 40 cm^{-1} to 1000 cm^{-1} and temperatures 5 K < T < 300 K. Excitations are studied for polarization...
Electron Spin Resonance across the Charge-ordering Transition in YBaMn2O6 (2008)
Zakharov, D., Deisenhofer, J., Nakajima, T., Ueda, Y., Loidl, A.
We investigated the metal-ordered manganite system YBaMn2O6 using electron spin resonance (ESR) in the paramagnetic regime across the charge-ordering and structural phase transition at T_CO = 480 K...
Optical Spectroscopy in CoO: Phonons, Electric, and Magnetic Excitations (2008)
Kant, Ch., Rudolf, T., Schrettle, F., Mayr, F., Deisenhofer, J., Lunkenheimer, P., ...
The reflectivity of single-crystalline CoO has been studied by optical spectroscopy for wave numbers ranging from 100 to 28,000\wn and for temperatures 8 $< T
Chain Formation by Spin Pentamers in eta-Na9V14O35 (2008)
Zakharov, D. V., Deisenhofer, J., Schrettle, F., Obermeier, G., Horn, S., ...
The nature of the gapped ground state in the quasi-one-dimensional compound eta-Na9V14O35 cannot easily be understood, if one takes into account the odd number of spins on each structural element....
Optical evidence for symmetry changes above the Neel temperature in KCuF3 (2008)
Deisenhofer, J., Leonov, I., Eremin, M. V., Kant, Ch., Ghigna, P., Mayr, F., ...
We report on optical measurements of the 1D Heisenberg antiferromagnet KCuF3. The crystal-field excitations of the Cu2+ ions have been observed and their temperature dependence can be understood in...
Dynamical Dzyaloshinsky-Moriya Interaction in KCuF3 (2008)
Eremin, M. V., Zakharov, D. V., Eremina, R. M., Shuvaev, A., Pimenov, A., ...
The spin dynamics of the prototypical quasi one-dimensional antiferromagnetic Heisenberg spin S=1/2 chain KCuF3 is investigated by electron spin resonance spectroscopy. Our analysis shows that the...
Optical properties of ZnCr2Se4 - Spin-phonon coupling and electronic d-d-like excitations (2008)
Rudolf, T., Kant, Ch., Mayr, F., Schmidt, M., Tsurkan, V., Deisenhofer, J., ...
We studied the optical properties of antiferromagnetic ZnCr2Se4 by infrared spectroscopy up to 28,000 cm-1 and for temperatures from 5 to 295 K. At the magnetic phase transition at 21 K, one of the...
Structural and magnetic dimers in the spin-gapped system CuTe2O5 (2006)
Deisenhofer, J., Eremina, R. M., Pimenov, A., Gavrilova, T., Berger, H., Johnsson, M., ...
We investigated the magnetic properties of the system CuTe2O5 by susceptibility and electron spin resonance measurements. The anisotropy of the effective g-factors and the ESR linewidth indicates...
Spin dynamics in the low-dimensional magnet TiOCl (2006)
Zakharov, D. V., Deisenhofer, J., Lunkenheimer, P., Hemberger, J., Hoinkis, M., ...
We present detailed ESR investigations on single crystals of the low-dimensional quantum magnet TiOCl. The anisotropy of the g-factor indicates a stable orbital configuration below room temperature,...
Unconventional anisotropic superexchange in NaV2O5 (2005)
Eremin, M. V., Zakharov, D. V., Eremina, R. M., Deisenhofer, J., Obermeier, G., ...
The strong line broadening observed in electron spin resonance on NaV$_2$O$_5$ is found to originate from an unusual type of the symmetric anisotropic exchange interaction with simultaneous...
Phonon anomalies and charge dynamics in Fe_{1-x}Cu_{x}Cr_{2}S_{4} single crystals (2005)
Rudolf, T., Pucher, K., Mayr, F., Samusi, D., Tsurkan, V., Tidecks, R., ...
A detailed investigation of phonon excitations and charge carrier dynamics in single crystals of Fe_{1-x}Cu_{x}Cr_{2}S_{4} (x = 0, 0.2, 0.4, 0.5) has been performed by using infrared spectroscopy. In...
Observation of a Griffiths phase in paramagnetic La1-xSrxMnO3 (2005)
Deisenhofer, J., Braak, D., Hemberger, J., Eremina, R. M., Ivanshin, V. A., ...
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 measurements. This phase is characterized by...
Deisenhofer, J., Loidl, A., Ahn, K., Kremer, R. K., Simon, A.
The spin dynamics of GdI_2 have been investigated by ESR spectroscopy. The temperature dependences of the resonance field and ESR intensity are well described by the model for the spin susceptibility...
Deisenhofer, J., Loidl, A., Ahn, K., Kremer, R. K., Simon, A.
The spin dynamics of GdI2 have been investigated by electron spin resonance (ESR) spectroscopy. The temperature dependences of the resonance field and ESR intensity are well described by the model...
Large and Small Polaron Excitations in La2/3(Sr/Ca)1/3MnO3 Films (2003)
Hartinger, Ch., Mayr, F., Deisenhofer, J., Loidl, A., Kopp, T.
We present detailed optical measurements of the mid-infrared (MIR) excitations in thin films of La2/3Sr1/3MnO3 (LSMO) and La2/3Ca1/3MnO3 (LCMO) across the magnetic transition. The shape of the...
The Orbital Order Parameter in La0.95Sr0.05MnO3 probed by Electron Spin Resonance (2003)
Deisenhofer, J., Kochelaev, B. I., Shilova, E., Balbashov, A. M., Loidl, A.
The temperature dependence of the electron-spin resonance linewidth in La0.95Sr0.05MnO3 has been determined and analyzed in the paramagnetic regime across the orbital ordering transition. From the...
Evidence for Jahn-Teller distortions at the antiferromagnetic transition in LaTiO$_3$ (2003)
Hemberger, J., Fritsch, V., Deisenhofer, J., Lobina, S., Rudolf, T., ...
LaTiO$_3$ is known as Mott-insulator which orders antiferromagnetically at $T_{\rm N}=146$ K. We report on results of thermal expansion and temperature dependent x-ray diffraction together with...
Microscopic State of Low Doped Manganites La1-xSrxMnO3 Probed by ESR (2002)
Ivanshin,V. A., Eremin,M. V., Deisenhofer,J., Loidl,A., Eremina,R. M.
The electron spin resonance (ESR) measurements were performed in single crystals of La1-xSrxMnO3 (0.05 less than or equal to x less than or equal to 0.125) in order to study the interplay of crystal...
ESR investigation of the spin dynamics in (Gd_{1-x}Y_{x})_2PdSi_{3} (2002)
Deisenhofer, J., Loidl, A., Sampathkumaran, E. V.
We report electron-spin resonance measurements in polycrystalline samples of (Gd_{1-x}Y_{x})_2PdSi_{3}. We observe the onset of a broadening of the linewidth and of a decrease of the resonance field...
Anisotropic Colossal Magnetoresistance Effects in Fe_{1-x}Cu_xCr_2S_4 (2002)
Fritsch, V., Deisenhofer, J., Fichtl, R., Hemberger, J., Muecksch, M., ...
A detailed study of the electronic transport and magnetic properties of Fe$_{1-x}$Cu$_x$Cr$_2$S$_4$ ($x \leq 0.5$) on single crystals is presented. The resistivity is investigated for $2 \leq T \leq...
Magnetic Anisotropy in La_0.8Sr_0.2MnO_3: Electron Spin Resonance (2002)
Deisenhofer, J., Loidl, A., Eremin, M. V., Ivanshin, V. A., Kimura, T., ...
We report on Ferromagnetic-Resonance experiments in a single crystal of La_0.8Sr_0.2MnO_3 in the temperature range from 4 to 300 K. The observed anisotropy of the resonance line changes on crossing...
Microscopic State of Low Doped Manganites La1-xSrxMnO3 Probed by ESR (2002)
Ivanshin, V. A., Eremin, M. V., Deisenhofer, J., Loidl, A., Eremina, R. M.
The electron spin resonance (ESR) measurements were performed in single crystals of La1-xSrxMnO3 (0.05 less than or equal to x less than or equal to 0.125) in order to study the interplay of crystal...
Deisenhofer, J., Eremin, M. V., Zakharov, D. V., Ivanshin, V. A., Eremina, R. M., ...
We present a comprehensive analysis of Dzyaloshinsky-Moriya interaction and crystal-field parameters using the angular dependence of the paramagnetic resonance shift and linewidth in single crystals...
ESR study in lightly doped La_(1-x)Sr_(x)MnO_(3) (1999)
Ivanshin, V. A., Deisenhofer, J., Loidl, A., Mukhin, A. A., Balbashov, A. M., ...
This is the first systematic ESR investigation of La_(1-x)Sr_(x)MnO_(3) single crystals for Sr concentrations x < 0.2. The rich phase diagram of this compound, which is dominated by the Jahn-Teller...
How does complexity lead to apparently simple function? (1999)
Frauenfelder, H., Deisenhofer, J., Report, P. G., Moffat, M., Changeux, J. P., Crothers, D. M., ...
We describe the mechanism of ribonuclease inhibition by ribonuclease inhibitor, a protein built of leucine-rich repeats, based on the crystal structure of the complex between the inhibitor and...
We describe the mechanism of ribonuclease inhibition by ribonuclease inhibitor, a protein built of leucine-rich repeats, based on the crystal structure of the complex between the inhibitor and...
Analysis of optical spectra from single crystals of Rhodopseudomonas viridis reaction centers (1985)
Knapp, E. W., Fischer, S. F., Zinth, Wolfgang, Sander, M., Kaiser, Wolfgang, Deisenhofer, J., ...
Absorption spectra and light-induced absorbance changes of crystals from Rhodopseudomonas viridis reaction centers are recorded. A theoretical analysis of the absorption and circular dichroism...
Correlation of structural and spectroscopic properties of a photosynthetic reaction center (1985)
Zinth, Wolfgang, Knapp, E. W., Fischer, S. F., Kaiser, Wolfgang, Deisenhofer, J., Michel, H.
Polarized spectra of absorption and light-induced absorbance changes are presented for the crystallized reaction centers of Rhodopseudomonas viridis. We find that a model based on extended dipole...
Treutlein, H, Schulten, K, Brünger, A T, Karplus, M, Deisenhofer, J, Michel, H
The coupling between electron transfer and protein structure and dynamics in the photosynthetic reaction center of Rhodopseudomonas viridis is investigated. For this purpose molecular dynamics...
Boddupalli, S S, Hasemann, C A, Ravichandran, K G, Lu, J Y, Goldsmith, E J, Deisenhofer, J, ...
Cytochromes P450 are members of a superfamily of hemoproteins that are involved in the metabolism of various physiologic and xenobiotic organic compounds. This superfamily of proteins can be divided...
Henry, L J, Xia, D, Wilke, M E, Deisenhofer, J, Gerard, R D
The adenovirus fiber protein is used for attachment of the virus to a specific receptor on the cell surface. Structurally, the protein consists of a long, thin shaft that protrudes from the vertex of...
Allen, J P, Feher, G, Yeates, T O, Rees, D C, Deisenhofer, J, Michel, H, ...
Crystals of the reaction center (RC) from Rhodopseudomonas sphaeroides with the space group P2(1)2(1)2(1), have been studied by x-ray diffraction. The Patterson search (molecular replacement)...
Analysis of optical spectra from single crystals of Rhodopseudomonas viridis reaction centers
Knapp, E. W., Fischer, S. F., Zinth, W., Sander, M., Kaiser, W., Deisenhofer, J., ...
Absorption spectra and light-induced absorbance changes of crystals from Rhodopseudomonas viridis reaction centers are recorded. A theoretical analysis of the absorption and circular dichroism...
In our lectures we first describe the history and methods of membrane protein crystallization, before we show how the structure of the photosynthetic reaction centre from the purple bacterium...
Pigment—protein interactions in the photosynthetic reaction centre from Rhodopseudomonas viridis
Michel, H., Epp, O., Deisenhofer, J.
An X-ray structure analysis of the photosynthetic reaction centre from the purple bacterium Rhodopseudomonas viridis provides structural details of the pigment-binding sites. The photosynthetic...
Synapsin I is structurally similar to ATP-utilizing enzymes.
Esser, L, Wang, C R, Hosaka, M, Smagula, C S, Südhof, T C, Deisenhofer, J
Synapsins are abundant synaptic vesicle proteins with an essential regulatory function in the nerve terminal. We determined the crystal structure of a fragment (synC) consisting of residues 110-420...
Treutlein, H, Schulten, K, Brünger, A T, Karplus, M, Deisenhofer, J, Michel, H
The coupling between electron transfer and protein structure and dynamics in the photosynthetic reaction center of Rhodopseudomonas viridis is investigated. For this purpose molecular dynamics...
Boddupalli, S S, Hasemann, C A, Ravichandran, K G, Lu, J Y, Goldsmith, E J, Deisenhofer, J, ...
Cytochromes P450 are members of a superfamily of hemoproteins that are involved in the metabolism of various physiologic and xenobiotic organic compounds. This superfamily of proteins can be divided...
Henry, L J, Xia, D, Wilke, M E, Deisenhofer, J, Gerard, R D
The adenovirus fiber protein is used for attachment of the virus to a specific receptor on the cell surface. Structurally, the protein consists of a long, thin shaft that protrudes from the vertex of...
Allen, J P, Feher, G, Yeates, T O, Rees, D C, Deisenhofer, J, Michel, H, ...
Crystals of the reaction center (RC) from Rhodopseudomonas sphaeroides with the space group P2(1)2(1)2(1), have been studied by x-ray diffraction. The Patterson search (molecular replacement)...
Analysis of optical spectra from single crystals of Rhodopseudomonas viridis reaction centers
Knapp, E. W., Fischer, S. F., Zinth, W., Sander, M., Kaiser, W., Deisenhofer, J., ...
Absorption spectra and light-induced absorbance changes of crystals from Rhodopseudomonas viridis reaction centers are recorded. A theoretical analysis of the absorption and circular dichroism...
In our lectures we first describe the history and methods of membrane protein crystallization, before we show how the structure of the photosynthetic reaction centre from the purple bacterium...
Pigment—protein interactions in the photosynthetic reaction centre from Rhodopseudomonas viridis
Michel, H., Epp, O., Deisenhofer, J.
An X-ray structure analysis of the photosynthetic reaction centre from the purple bacterium Rhodopseudomonas viridis provides structural details of the pigment-binding sites. The photosynthetic...
Synapsin I is structurally similar to ATP-utilizing enzymes.
Esser, L, Wang, C R, Hosaka, M, Smagula, C S, Südhof, T C, Deisenhofer, J
Synapsins are abundant synaptic vesicle proteins with an essential regulatory function in the nerve terminal. We determined the crystal structure of a fragment (synC) consisting of residues 110-420...
We describe the mechanism of ribonuclease inhibition by ribonuclease inhibitor, a protein built of leucine-rich repeats, based on the crystal structure of the complex between the inhibitor and...
Istvan, E. S., Hasemann, C. A., Kurumbail, R. G., Uyeda, K., Deisenhofer, J.
Diffraction-quality crystals of the bifunctional enzyme fructose 6-phosphate, 2-kinase:fructose 2,6-bisphosphatase from rat testis have been obtained. The crystals were grown in the presence of ATP...
Wang, C. R., Esser, L., Smagula, C. S., Südhof, T. C., Deisenhofer, J.
A 35-37-kDa protease-resistant domain of synapsin Ia/ Ib, apparently produced by low levels of endogenous proteases in vapor diffusion droplets, slowly formed crystals diffracting X-rays to...