Ebata, K., Takizawa, M., Fujimori, A., Kuwahara, H., Tomioka, Y., Tokura, Y.
We have studied the effects of band filling and bandwidth control on the chemical potential in perovskite manganites $R_{1-x}A_x$MnO$_3$ ($R$ : rare earth, $A$ : alkaline earth) by measurements of...
Signature of Magnetic Phase Separation in the Ground State of Pr1-xCaxMnO3 (2008)
Sha, Hao, Ye, F., Dai, Pengcheng, Fernandez-Baca, J. A., Mesa, D., Lynn, J. W., ...
Neutron scattering has been used to investigate the evolution of the long- and short-range charge-ordered (CO), ferromagnetic (FM), and antiferromagnetic (AF) correlations in single crystals of...
Lopes, A. M. L., Araujo, J. P., Amaral, V. S., Correia, J. G., Tomioka, Y., Tokura, Y.
A detailed study of the electric field gradient (EFG) across the Pr1-xCaxMnO3 phase diagram and its temperature dependence is given. Clearly, distinct EFG behaviours for samples outside/inside the...
Demkó, L., Kézsmárki, I., Mihály, G., Takeshita, N., Tomioka, Y., Tokura, Y.
We have studied the bandwidth-temperature-magnetic field phase diagram of RE(0.55)Sr(0.45)MnO(3) colossal magnetoresistance manganites with ferromagnetic metallic (FM) ground state. The bandwidth (or...
Ebata, K., Takizawa, M., Maekawa, K., Fujimori, A., Kuwahara, H., Tomioka, Y., ...
We have studied the chemical potential shift as a function of temperature in Nd$_{1-x}$Sr$_x$MnO$_3$ (NSMO) by measurements of core-level photoemission spectra. For ferromagnetic samples ($x=0.4$ and...
Kezsmarki, I., Tomioka, Y., Miyasaka, S., Demko, L., Okimoto, Y., Tokura, Y.
We present a systematic optical study for a bandwidth-controlled series of nearly half doped colossal magnetoresistive manganites RE$_{0.55}$AE$_{0.45}$MnO$_3$ (RE and AE being rare earth and...
Orbital Domain Dynamics in a Doped Manganite (2007)
Turner, J. J., Thomas, K. J., Hill, J. P., Pfeifer, M., Chesnel, K., Tomioka, Y., ...
The coupling of multiple degrees of freedom - charge, spin, and lattice - in manganites has mostly been considered at the microscopic level. However, on larger length scales, these correlations may...
Ebata, K., Hashimoto, M., Tanaka, K., Fujimori, A., Tomioka, Y., Tokura, Y.
We have studied the temperature dependence of the photoemission spectra of Pr$_{1-x}$Ca$_x$MnO$_3$ (PCMO) with $x=0.25$, 0.3 and 0.5. For $x=0.3$ and 0.5, we observed a gap in the low-temperature...
Ye, F., Dai, Pengcheng, Fernandez-Baca, J. A., Adroja, D. T., Perring, T. G., Tomioka, Y., ...
Using time-of-flight and triple-axis inelastic neutron spectroscopy, we determine spin wave excitations throughout the Brillouin zone for ferromagnetic manganites La$_{1-x}$Ca$_x$MnO$_3$...
Ye, F, Dai, P, Fernandez-Baca, JA, Adroja, DT, Perring, TG, Tomioka, Y, ...
Bandwidth-disorder phase diagram of half doped layered manganites (2006)
Mathieu, R., Uchida, M., Kaneko, Y., He, J. P., Yu, X. Z., Kumai, R., ...
Phase diagrams in the plane of $r_A$ (the average ionic radius, related to one-electron bandwidth $W$) and $\sigma^2$ (the ionic radius variance, measuring the quenched disorder), or...
Ebata, K., Wadati, H., Takizawa, M., Fujimori, A., Chikamatsu, A., Kumigashira, H., ...
We have studied the chemical potential shift and changes in the electronic density of states near the Fermi level ($E_F$) as a function of carrier concentration in Pr$_{1-x}$Ca$_x$MnO$_3$ (PCMO, $0.2...
Evolution of spin-wave excitations in ferromagnetic metallic manganites (2005)
Ye, F., Dai, Pengcheng, Fernandez-Baca, J. A., Sha, Hao, Lynn, J. W., Kawano-Furukawa, H., ...
Neutron scattering results are presented for spin-wave excitations of three ferromagnetic metallic $A_{1-x}A^{\prime}_{x}$MnO$_3$ manganites (where $A$ and $A^\prime$ are rare- and alkaline-earth...
Electronically smectic-like phase in a nearly half-doped manganite (2005)
Ye, F., Fernandez-Baca, J. A., Dai, Pengcheng, Lynn, J. W., Kawano-Furukawa, H., Yoshizawa, H., ...
We use neutron scattering to study the spin and charge/orbital ordering (CO-OO) in the nearly half-doped perovskite manganite $Pr_{0.55}(Ca_{0.8}Sr_{0.2})_{0.45}MnO_3$ (PCSMO). On cooling from room...
Temperature-Dependent X-Ray Absorption Spectroscopy of Colossal Magnetoresistive Perovskites (2005)
Mannella, N., Rosenhahn, A., Watanabe, M., Sell, B., Nambu, A., Ritchey, S., ...
The temperature dependence of the O K-edge pre-edge structure in the x-ray absorption spectra of the perovskites La(1-x)A(x)MnO(3), (A = Ca, Sr; x = 0.3, 0.4) reveals a correlation between the...
Grenier, S., Hill, J. P., Kiryukhin, V., Ku, W., Thomas, K. J., ...
We report the observation of temperature dependent electronic excitations in various manganites utilizing resonant inelastic x-ray scattering (RIXS) at the Mn K-edge. Excitations were observed...
Mathieu, R., Akahoshi, D., Asamitsu, A., Tomioka, Y., Tokura, Y.
The magnetic and electrical properties of high quality single crystals of $A$-site disordered (solid solution) Ln$_{0.5}$Ba$_{0.5}$MnO$_3$ are investigated near the phase boundary between the spin...
Tomioka, Y., Ochiai, K., Ohashi, K., Ono, E., Toyoda, T., Kimura, T., ...
So-called fowl glioma is a retroviral infectious disease caused by avian leukosis virus subgroup A (ALV-A). We determined the complete nucleotide sequence of the virus genome. The full-length...
Tomioka, Y., Ochiai, K., Ohashi, K., Ono, E., Toyoda, T., Kimura, T., ...
So-called fowl glioma is a retroviral infectious disease caused by avian leukosis virus subgroup A (ALV-A). We determined the complete nucleotide sequence of the virus genome. The full-length...
Tomioka, Y., Ochiai, K., Ohashi, K., Ono, E., Toyoda, T., Kimura, T., ...
So-called fowl glioma is a retroviral infectious disease caused by avian leukosis virus subgroup A (ALV-A). We determined the complete nucleotide sequence of the virus genome. The full-length...
Mannella, N., Rosenhahn, A., Booth, C. H., Marchesini, S., Mun, B. S., ...
The temperature dependence of the electronic and atomic structure of the colossal magnetoresistive oxides $La_{1-x}Sr_{x}MnO_{3}$ (x = 0.3, 0.4) has been studied using core and valence level...
Thomas, K J, Hill, J P, Grenier, S, Kim, Y J, Abbamonte, P, Venema, L, ...
Thomas, K. J., Hill, J. P., Kim, Y-J., Grenier, S., Abbamonte, P., Venema, L., ...
We have utilized the resonant x-ray diffraction technique at the Mn L-edge in order to directly compare magnetic and orbital correlations in the Mn sub-lattice of Pr0.6Ca0.4MnO3. The resonant line...
Orbital-Order-Induced Metal-Insulator Transition in La1-xCaxMnO3 (2003)
Aken, Bas B. Van, Jurchescu, Oana D., Meetsma, Auke, Tomioka, Y., Tokura, Y., Palstra, Thomas T.M.
We present evidence that the insulator-to-metal transition in La1-xCaxMnO3 near x ~ 0.2 is driven by the suppression of coherent Jahn-Teller distortions, originating from d-type orbital ordering. The...
Coherent X-ray Scattering from Manganite Charge and Orbital Domains (2002)
Nelson, C. S., Hill, J. P., Gibbs, Doon, Yakhou, F., Livet, F., Tomioka, Y., ...
We report coherent x-ray scattering studies of charge and orbital domains in manganite systems. The experiments were carried out on LaMnO_3 and Pr_{0.6}Ca_{0.4}MnO_3, with the incident photon energy...
Structural response to O*-O' and magnetic transitions in orthorhombic perovskites (2002)
Van Aken, Bas B., Meetsma, Auke, Tomioka, Y., Tokura, Y., Palstra, Thomas T. M.
We present a temperature dependent single crystal x-ray diffraction study of twinned orthorhombic perovskites La1-xCaxMnO3, for x=0.16 and x=0.25. These data show the evolution of the crystal...
Orbital order induced metal-insulator transition in (La,Ca)MnO3 (2002)
Van Aken, Bas B., Meetsma, Auke, Tomioka, Y., Tokura, Y., Palstra, Thomas T. M.
We present evidence that the insulator to metal transition in (La,Ca)MnO3 near x~0.2 is driven by the suppression of coherent Jahn-Teller distortions, originating from d type orbital ordering. The...
Structural response to O*-O' and magnetic transitions in orthorhombic perovskites (2002)
Aken, Bas B. Van, Meetsma, Auke, Tomioka, Y., Tokura, Y., Palstra, Thomas T.M.
We present a temperature-dependent single-crystal x-ray-diffraction study of twinned orthorhombic perovskites La1-xCaxMnO3, for x=0.16 and x=0.25. These data show the evolution of the crystal...
Microscopic spin interactions in the CMR manganites (2001)
Fernandez-Baca, J. A., Dai, Pengcheng, Kawano-Furukawa, H., Yoshizawa, H., Plummer, E. W., Katano, S., ...
Using inelastic neutron scattering we measured the microscopic magnetic coupling associated with the ferromagnetic (FM) clusters of the ``colossal magnetoresistance'' (CMR) compound...
Novel stripe-type charge ordering in the metallic A-type antiferromagnet Pr{0.5}Sr{0.5}MnO{3} (2001)
Kajimoto, R., Yoshizawa, H., Tomioka, Y., Tokura, Y.
We demonstrate that an A-type antiferromagnetic (AFM) state of Pr{0.5}Sr{0.5}MnO{3} exhibits a novel charge ordering which governs the transport property. This charge ordering is stripe-like, being...
Orbital Correlations in Doped Manganites (2001)
Hill, J. P., Nelson, C. S., Zimmermann, M. V., Gibbs, D., Casa, D., ...
We review our recent x-ray scattering studies of charge and orbital order in doped manganites, with specific emphasis on the role of orbital correlations in Pr_1-xCa_xMnO_3. For x=0.25, we find an...
Zimmermann, M. V., Nelson, C. S., Hill, J. P., Gibbs, Doon, Nakao, H., ...
We report an x-ray scattering study of octahedral tilt ordering in the manganite series Pr$_{1-x}$Ca$_x$MnO$_3$ with x=0.4 and 0.25 and in LaMnO$_3$. The sensitivity to tilt ordering is achieved by...
Correlated polarons in dissimilar perovskite manganites (2001)
Nelson, C. S., Von Zimmermann, M., Kim, Y. J., Hill, J. P., Gibbs, D., Kiryukhin, V., ...
Orbital correlations in doped manganites (2001)
Hill, J. P., Nelson, C. S., Von Zimmermann, M., Kim, Y. J., Gibbs, D., Casa, D., ...
X-ray resonant scattering studies of orbital and charge ordering in Pr1-xCaxMnO3 (2001)
Von Zimmermann, M., Nelson, C. S., Hill, J. P., Gibbs, D., Blume, M., Casa, D., ...
X-ray resonant scattering studies of charge and orbital ordering in Pr1-xCaxMnO3 (2001)
V. Zimmenmann, M., Nelson, C.S., Hill, J.P., Gibbs, D., Blume, M., Casa, D., ...
Lyanda-Geller, Y., Chun, S. H., Salamon, M. B., Goldbart, P. M., Han, P. D., Tomioka, Y., ...
The low-temperature Hall resistivity \rho_{xy} of La_{2/3}A_{1/3}MnO_3 single crystals (where A stands for Ca, Pb and Ca, or Sr) can be separated into Ordinary and Anomalous contributions, giving...
Correlated Polarons in Dissimilar Perovskite Manganites (2000)
Nelson, C. S., Zimmermann, M. V., Hill, J. P., Gibbs, Doon, Kiryukhin, V., Koo, T. Y., ...
We report x-ray scattering studies of broad peaks located at a (0.5 0 0)/(0 0.5 0)-type wavevector in the paramagnetic insulating phases of La_{0.7}Ca_{0.3}MnO_{3} and Pr_{0.7}Ca_{0.3}MnO_{3}. We...
Kajimoto, R., Yoshizawa, H., Tomioka, Y., Tokura, Y.
The melting process of the orbital order in Pr0.5Ca0.5MnO3 single crystal has been studied in detail as a function of temperature by neutron diffraction. It is demonstrated that a...
Short-range polaron correlations in the ferromagnetic La(1-x)Ca(x)MnO(3) (2000)
Dai, Pengcheng, Fernandez-Baca, J. A., Wakabayashi, N., Plummer, E. W., Tomioka, Y., Tokura, Y.
We use neutron scattering to demonstrate the presence of lattice polarons and their short-range correlations for several samples of La$_{1-x}$Ca$_x$MnO$_3$ in the Ca doping range $0.15\leq x\leq...
X-ray Resonant Scattering Studies of Orbital and Charge Ordering in Pr$_{1-x}$Ca$_x$MnO$_3$ (2000)
Zimmermann, M. V., Nelson, C. S., Hill, J. P., Gibbs, Doon, Blume, M., Casa, D., ...
We present the results of a systematic x-ray scattering study of the charge and orbital ordering in the manganite series Pr$_{1-x}$Ca$_x$MnO$_3$ with $x$=0.25, 0.4 and 0.5. The temperature dependence...
Kajimoto, R., Yoshizawa, H., Kawano-Furukawa, H., Kuwahara, H., Tomioka, Y., Tokura, Y.
Spin wave excitations were measured in the ferromagnetic phase of Nd$_{1/2}$Sr$_{1/2}$MnO$_{3}$ by neutron scattering. This compound is located in proximity to the A-type antiferromagnetic state, and...
Ultrafast spin dynamics and critical behavior in half-metallic ferromagnet : Sr_2FeMoO_6 (2000)
Kise, T., Ogasawara, T., Ashida, M., Tomioka, Y., Tokura, Y., Kuwata-Gonokami, M.
Ultrafast spin dynamics in ferromagnetic half-metallic compound Sr_2FeMoO_6 is investigated by pump-probe measurements of magneto-optical Kerr effect. Half-metallic nature of this material gives rise...
Interplay of charge, orbital and magnetic order in Pr1–xCaxMnO3 (2000)
Zimmermann, M.V., Hill, J.P., Gibbs, D., Blume, M., Casa, D., Keimer, B., ...
Breakdown of the lattice polaron picture in La0.7Ca0.3MnO3 single crystals (1999)
Chun, S. H., Salamon, M. B., Tomioka, Y., Tokura, Y.
When heated through the magnetic transition at Tc, La0.7Ca0.3MnO3 changes from a band metal to a polaronic insulator. The Hall constant R_H, through its activated behavior and sign anomaly, provides...
Interplay between charge, orbital and magnetic order in Pr_{1-x}Ca_xMnO_3 (1999)
Zimmermann, M. V., Hill, J. P., Gibbs, Doon, Blume, M., Casa, D., Keimer, B., ...
We report resonant x-ray scattering studies of charge and orbital order in Pr_{1-x}Ca_{x}MnO_3 with x=0.4 and 0.5. Below the ordering temperature, T_O=245 K, the charge and orbital order intensities...
Magnon Damping by magnon-phonon coupling in Manganese Perovskites (1999)
Dai, Pengcheng, Hwang, H. Y., Zhang, Jiandi, Fernandez-Baca, J. A., Cheong, S-W., Kloc, C., ...
Inelastic neutron scattering was used to systematically investigate the spin-wave excitations (magnons) in ferromagnetic manganese perovskites. In spite of the large differences in the Curie...
Microscopically homogeneous magnetic structure of La12xSrxMnO3 beyond the range of 0 (1999)
Kumagai, K., Iwai, A., Tomioka, Y., Kuwahara, H., Tokura, Y., Yakubovskii, A., ...
A 139La NMR study was carried out on melt-grown samples of La1-xSrxMnO3 (0
Microscopically homogeneous magnetic structure of La12xSrxMnO3 beyond the range of 0 (1999)
Kumagai, K., Iwai, A., Tomioka, Y., Kuwahara, H., Tokura, Y., Yakubovskii, A.
A 139La NMR study was carried out on melt-grown samples of La1-xSrxMnO3 (0
Microscopically homogeneous magnetic structure of La12xSrxMnO3 beyond the range of 0 (1999)
Kumagai, K., Iwai, A., Tomioka, Y., Kuwahara, H., Tokura, Y., Yakubovskii, A.
A 139La NMR study was carried out on melt-grown samples of La1-xSrxMnO3 (0
Spatially Inhomogeneous Metal-Insulator Transition in Doped Manganites (1999)
Fath, M., Freisem, S., Menovsky, A.A., Tomioka, Y., Aarts, J., Mydosh, J.A.
Interplay between charge, orbital and magnetic order in Pr1-xCaxMnO3. (1999)
Von Zimmermann, M., Hill, J. P., Gibbs, D., Blume, M., Casa, D., Keimer, B., ...
Casa, D., Kiryukhin, V., Saleh, O. A., Keimer, B., Hill, J. P., Tomioka, Y., ...
Charge-ordered manganites of composition $\rm Pr_{1-x}(Ca_{1-y}Sr_{y})_{x}MnO_3$ exhibit persistent photoconductivity upon exposure to x-rays. This is not always accompanied by a significant increase...
Kajimoto, R., Kakeshita, T., Oohara, Y., Yoshizawa, H., Tomioka, Y., Tokura, Y.
The high temperature paramagnetic state in an antiferromagnetic (AFM) insulator Pr_{1-x}Ca_{x}MnO_{3} is characterized by the ferromagnetic (FM) spin fluctuations with an anomalously small energy...
Kawano, H., Kajimoto, R., Yoshizawa, H., Tomioka, Y., Kuwahara, H., Tokura, Y.
We report inelastic neutron scattering results on the spin dynamics in the 50 % hole-doped manganites, Pr{1/2}Sr{1/2}MnO3 and Nd{1/2}Sr{1/2}MnO3. In the paramagnetic phase, these systems exhibit a...
Kajihara-Kano, H, Hayakari, M, Satoh, K, Tomioka, Y, Mizugaki, M, Tsuchida, S
Recent studies have revealed binding of mitochondrial enoyl-CoA isomerase (ECI) to S-hexylglutathione-Sepharose, an affinity matrix used for purification of glutathione transferases (GSTs), and the...
Kajihara-Kano, H, Hayakari, M, Satoh, K, Tomioka, Y, Mizugaki, M, Tsuchida, S
Recent studies have revealed binding of mitochondrial enoyl-CoA isomerase (ECI) to S-hexylglutathione-Sepharose, an affinity matrix used for purification of glutathione transferases (GSTs), and the...