Berggold, K., Kriener, M., Becker, P., Benomar, M., Reuther, M., Zobel, C., ...
We present a combined study of the thermal expansion and the thermal conductivity of the perovskite series RCoO_3 with R = La, Nd, Pr and Eu. The well-known spin-state transition in LaCoO_3 is...
Berggold, K., Baier, J., Meier, D., Mydosh, J. A., Lorenz, T., Hemberger, J., ...
We present measurements of the thermal conductivity $\kappa $ and the thermal expansion $\alpha$ of NdMnO$_3$ and TbMnO$_3$. In both compounds a splitting of the $4f$ multiplet of the $R^{3+}$ ion...
Magnetothermal transport in the spin-1/2 chains of copper pyrazine dinitrate (2006)
Sologubenko, A. V., Berggold, K., Lorenz, T., Rosch, A., Shimshoni, E., Phillips, M. D., ...
We present experiments on the thermal transport in the spin-1/2 chain compound copper pyrazine dinitrate Cu(C_4 H_4 N_2)(NO_3)_2. The heat conductivity shows a surprisingly strong dependence on the...
Uniaxial pressure dependencies of the phase transitions in GdMnO$_3$ (2006)
Baier, J., Meier, D., Berggold, K., Hemberger, J., Balbashov, A., Mydosh, J. A., ...
GdMnO$_3$ shows an incommensurate antiferromagnetic order below $\simeq 42$ K, transforms into a canted A-type antiferromagnet below $\simeq 20$ K, and for finite magnetic fields along the b axis...
Hysteresis effects in the phase diagram of multiferroic GdMnO$_3$ (2006)
Baier, J., Meier, D., Berggold, K., Hemberger, J., Balbashov, A., Mydosh, J. A., ...
We present high-resolution thermal expansion $\alpha(T)$ and magnetostriction $\Delta L(H)/L$ measurements of GdMnO$_3$, which develops an incommensurate antiferromagnetic order (ICAFM) below $T_{\rm...
Transport and thermodynamic properties of rare-earth transition-metal compounds (2006)
Hartmann, H., Berggold, K., Heyer, O., Jodlauk, S., Klassen, I., Kordonis, K., ...
Magnetic heat transport in R$_2$CuO$_4$ (R = La, Pr, Nd, Sm, Eu, and Gd) (2005)
Berggold, K., Lorenz, T., Baier, J., Kriener, M., Senff, D., Roth, H., ...
We have studied the thermal conductivity $\kappa$ on single crystalline samples of the antiferromagnetic monolayer cuprates R$_2$CuO$_4$ with R = La, Pr, Nd, Sm, Eu, and Gd. For a heat current within...
Hartmann, H., Berggold, K., Jodlauk, S., Klassen, I., Kordonis, K., Fickenscher, T., ...
We present a study of the magnetoresistance, the specific heat and the magnetocaloric effect of equiatomic $RET$Mg intermetallics with $RE = {\rm La}$, Eu, Gd, Yb and $T = {\rm Ag}$, Au and of...
Thermal conductivity of R2CuO4, with R = La, Pr and Gd (2005)
Berggold, K., Lorenz, T., Baier, J., Kriener, M., Senff, D., Barilo, S., ...
We present measurements of the in-plane kappa_ab and out-of-plane kappa_c thermal conductivity of Pr2CuO4 and Gd2CuO4 single crystals. The anisotropy gives strong evidence for a large contribution of...
Thermal Conductivity, Thermopower, and Figure of Merit of La_{1-x}Sr_xCoO_3 (2005)
Berggold, K., Kriener, M., Zobel, C., Reichl, A., Freimuth, A., Lorenz, T.
We present a study of the thermal conductivity k and the thermopower S of single crystals of La_{1-x}Sr_xCoO_3 with 0
Structure, Magnetization and Resistivity of La$_{1-x}$M$_x$CoO$_3$ (M = Ca, Sr, and Ba) (2004)
Kriener, M., Zobel, C., Reichl, A., Baier, J., Cwik, M., Berggold, K., ...
We present an investigation of the influence of structural distortions in charge-carrier doped \lmco by substituting La$^{3+}$ with alkaline earth metals of strongly different ionic sizes, that is M...
Evidence for a large magnetic heat current in insulating cuprates (2003)
Hofmann, M., Lorenz, T., Berggold, K., Gr"uninger, M., Freimuth, A., Uhrig, G. S., ...
The in-plane thermal conductivity $k$ of the two-dimensional antiferromagnetic monolayer cuprate Sr$_2$CuO$_2$Cl$_2$ is studied. Analysis of the unusual temperature dependence of $k$ reveals that at...