Low-energy Mott-Hubbard excitations in LaMnO_3 probed by optical ellipsometry (2009)
Kovaleva, N. N., Oles, Andrzej M., Balbashov, A. M., Maljuk, A., Argyriou, D. N., Khaliullin, G., ...
We present a comprehensive ellipsometric study of an untwinned, nearly stoichiometric LaMnO_3 crystal in the spectral range 1.2-6.0 eV at temperatures 20 K < T < 300 K. The complex dielectric...
Low-energy Mott-Hubbard excitations in LaMnO$_3$ (2009)
Kovaleva, N. N., Oles, Andrzej M., Balbashov, A. M., Maljuk, A., Argyriou, D. N., Khaliullin, G., ...
More discussion from the theory is suggested
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...
Magnetic and magnetoelectric excitations in TbMnO$_3$ (2009)
Pimenov, A., Shuvaev, A., Loidl, A., Schrettle, F., Mukhin, A. A., Travkin, V. D., ...
Magnetic and magnetoelectric excitations in the multiferroic TbMnO_3 have been investigated at terahertz frequencies. Using different experimental geometries we can clearly separate the...
Relaxations as key to the magnetocapacitive effects in the perovskite manganites (2008)
Schrettle, F., Lunkenheimer, P., Hemberger, J., Ivanov, V. Yu., Mukhin, A. A., Balbashov, A. M., ...
We present a detailed dielectric study of the relaxation effects that occur in several perovskite rare-earth manganites, including the multiferroics TbMnO3 and DyMnO3. We demonstrate that the strong...
Terahertz spectroscopy of electromagnons in Eu_{1-x}Y_xMnO_3 (2007)
Pimenov, A., Loidl, A., Mukhin, A. A., Travkin, V. D., Ivanov, V. Yu., Balbashov, A. M.
Dielectric permittivity spectra of yttrium-doped EuMnO$_3$ in the composition range 0 =< x =< 0.5 have been investigated in the terahertz frequency range. Magnetoelectric contributions to the...
Coupling of phonons and electromagnons in GdMnO_3 (2006)
Pimenov, A., Rudolf, T., Mayr, F., Loidl, A., Mukhin, A. A., Balbashov, A. M.
The infrared and Terahertz properties of GdMnO_3 have been investigated as function of temperature and magnetic field, with special emphasis on the phase boundary between the incommensurate and the...
Scaling of THz-conductivity at metal-insulator transition in doped manganites (2006)
Pimenov, A., Biberacher, M., Ivannikov, D., Loidl, A., Mukhin, A. A., Goncharov, Yu. G., ...
Magnetic field and temperature dependence of the Terahertz conductivity and permittivity of the colossal magnetoresistance manganite Pr_{0.65}Ca_{0.28}Sr_{0.07}MnO_3 (PCSMO) is investigated...
The multiferroic phases of (Eu:Y)MnO3 (2006)
Hemberger, J., Schrettle, F., Pimenov, A., Lunkenheimer, P., Ivanov, V. Yu., Mukhin, A. A., ...
We report on structural, magnetic, dielectric, and thermodynamic properties of (Eu:Y)MnO3 for Y doping levels 0
Possible evidence for electromagnons in multiferroic manganites (2006)
Pimenov, A., Mukhin, A. A., Ivanov, V. Yu., Travkin, V. D., Balbashov, A. M., Loidl, A.
Magnetodielectric materials are characterized by a strong coupling of magnetic and dielectric properties and in rare cases simultaneously exhibit both, magnetic and polar order. Among other...
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...
Spin-controlled Mott-Hubbard bands in LaMnO_3 probed by optical ellipsometry (2004)
Kovaleva, N. N., Boris, A. V., Bernhard, C., Kulakov, A., Pimenov, A., Balbashov, A. M., ...
Spectral ellipsometry has been used to determine the dielectric function of an untwinned crystal of LaMnO_3 in the spectral range 0.5-5.6 eV at temperatures 50 K < T < 300 K. A pronounced...
Spin-Controlled Mott-Hubbard Bands in LaMnO3 Probed by Optical Ellipsometry (2004)
Kovaleva, N. N., Boris, A. V., Bernhard, C., Kulakov, A., Pimenov, A., Balbashov, A. M., ...
Complex interplay of 3d and 4f magnetism in La:GdMnO3 (2003)
Hemberger, J., Lobina, S., Tristan, N., Ivanov, V. Yu., Mukhin, A. A., ...
We report on structural, magnetic, electrical, and thermodynamic properties of Gd-doped LaMnO3 single crystals for Gd doping levels 0
Magnetic and thermodynamic properties of RMnO$_3$ (R = Pr, Nd) (2003)
Hemberger, J., Brando, M., Wehn, R., Ivanov, V. Yu., Mukhin, A. A., Balbashov, A. M., ...
The ground state properties of the pure perovskite compounds PrMnO$_3$ and NdMnO$_3$ were investigated by magnetization, magnetic AC susceptibility and specific heat measurements. A strongly...
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...
Hemberger, J., Krimmel, A., Kurz, T., Ivanov, V. Yu., Mukhin, A. A., ...
We report on structural, magnetic and electrical properties of Sr-doped LaMnO_3 single crystals for doping levels 0.4 < x < 0.85. The complex structural and magnetic phase diagram can only be...
Ivannikov, D., Biberacher, M., Pimenov, A., Mukhin, A. A., Balbashov, A. M.
High-field electron spin resonance (ESR) experiments have been carried out in single crystals of La_{1-x}Sr_xMnO_3 in the concentration range 0 \le x \le 0.175. Different quasioptical arrangements...
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...
Magnetic, electronic, dielectric and optical properties of Pr(Ca:Sr)MnO3 (2001)
Sichelschmidt,J., Paraskevopoulos,M., Brando,M., Wehn,R., Ivannikov,D., Mayr,F., ...
Magnetic, electronic, dielectric and optical properties of Pr(Ca:Sr)MnO3 (2001)
Sichelschmidt, J., Paraskevopoulos, M., Brando, M., Wehn, R., Ivannikov, D., Mayr, F., ...
Pimenov, A., Biberacher, M., Ivannikov, D., Loidl, A., Ivanov, V. Yu., Mukhin, A. A., ...
High-field antiferromagnetic-resonance (AFMR) spectra were obtained in the frequency range 60 GHz < \nu < 700 GHz and for magnetic fields up to 8 T in twin-free single crystals of...
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...
Structural phase transitions and sound velocity anomalies in La(1-x)Sr(x)MnO3 (1999)
Gaidukov, Yu. P., Danilova, N. P., Vassilieva, N. A., Balbashov, A. M.
The sound velocities dependencies on temperature V(T) were measured by means of resonance method have on the thin plates of quasimonocrystalline manganites La(1-x)Sr(x)MnO3. Results are presented for...
Positive magnetoresistance and orbital ordering in La(1-x)Sr(x)MnO(3) (1998)
Paraskevopoulos, M., Hemberger, J., Loidl, A., Mukhin, A. A., Ivanov, V. Yu., Balbashov, A. M.
We report on detailed transprort measurements of single crystalline La(1-x)Sr(x)MnO(3) (x
The phase diagramm of La{1-x}Sr{x}MnO3 revisited (1998)
Paraskevopoulos, M., Hemberger, J., Loidl, A., Mukhin, A. A., Ivanov, V. Yu., Balbashov, A. M.
We report on detailed sucseptibility and magnetization studies in La{1-x}Sr{x}MnO3 for x