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$La_{0.6}Y_{0.1}Ca_{0.3}MnO_{3}$, an $ABO_{3}$ perovskite manganite oxide, exhibits a non trivial behavior in the vicinity of the sharp peak found in the resistivity $\rho$ as a function of temperature $T$ in zero magnetic field. The…

Condensed Matter · Physics 2009-11-07 M. Ausloos , L. Hubert , S. Dorbolo , A. Gilabert , R. Cloots

A coordinated temperature behavior of magnetic susceptibility and internal friction has been observed in the La2/3Ba1/3MnO3 manganite in the temperature region of the crystal phase separation 5-340 K. Stepwise temperature behavior of the…

Materials Science · Physics 2007-05-23 E. L. Fertman , A. B. Beznosov , V. A. Desnenko , L. N. Pal-Val , P. P. Pal-Val , D. D. Khalyavin

We report a synchrotron x-ray scattering study of the magnetoresistive manganite La_0.875Sr_0.125MnO_3. At low temperatures, this material undergoes an x-ray induced structural transition at which charge ordering of Mn^3+ and Mn^4+ ions…

Strongly Correlated Electrons · Physics 2009-10-31 V. Kiryukhin , Y. J. Wang , F. C. Chou , M. A. Kastner , R. J. Birgeneau

The metal-insulator transition (MIT) in rare-earth nickelates exemplifies the intricate interplay between electronic correlations and lattice dynamics in quantum materials. This work focuses on SmNiO$_3$ as a prototypical system, employing…

Materials Science · Physics 2025-03-12 Guoyong Shi , Fenglin Deng , Ri He , Dachuan Chen , Xuejiao Chen , Peiheng Jiang , Zhicheng Zhong

We present a first-principles investigation of magnetic exchange interactions and critical behavior in (111)-oriented (LaMnO$_3$)$_{2n}$|(SrMnO$_3$)$_n$ superlattices for $n=2,4,6$. For all superlattices under investigation, we find robust…

Strongly Correlated Electrons · Physics 2026-02-17 Shivalika Sharma , Julio do Nascimento , Imran Ahamed , Fabrizio Cossu , Heung-Sik Kim , Igor Di Marco

Motivated by the rich interplay among electronic correlation, spin-orbit coupling (SOC), crystal-field splitting, and geometric frustrations in the honeycomb-like lattice, we systematically investigated the electronic and magnetic…

Strongly Correlated Electrons · Physics 2013-05-01 Yongkang Luo , Chao Cao , Bingqi Si , Yuke Li , Jinke Bao , Hanjie Guo , Xiaojun Yang , Chenyi Shen , Chunmu Feng , Jianhui Dai , Guanghan Cao , Zhu-an Xu

Neutron scattering studies on a single crystal of the highly-correlated electron system, La1-xSrxMnO3 with x~0.3, have been carried out elucidating both the spin and lattice dynamics of this metallic ferromagnet. We report a large measured…

Condensed Matter · Physics 2009-10-28 Michael C. Martin , G. Shirane , Y. Endoh , K. Hirota , Y. Moritomo , Y. Tokura

Magnetic phase transitions have been explored in a superlattice formed by stacking monolayers of $\rm LaTiO_{3}$ and $\rm LaVO_{3}$ alternately, using ab-initio density functional theory (DFT) and Monte-Carlo (MC) simulations. DFT derived…

Computational Physics · Physics 2022-05-10 Mukesh Sharma , Tulika Maitra

The phase diagram and low temperature properties of the doped manganites A1-xBxMnO3 are discussed for the concentrations x < 0.4. The transition from insulating antiferromagnetic to metallic ferromagnetic state at x_cr = 0.16 is treated by…

Strongly Correlated Electrons · Physics 2009-10-31 M. O. Dzero , L. P. Gor'kov , V. Z. Kresin

We propose a new approach to the (ferromagnetic) Kondo-lattice model in the low density region, where the model is thought to give a reasonable frame work for manganites with perovskite structure exhibiting the "colossal magnetoresistance"…

Strongly Correlated Electrons · Physics 2009-11-07 W. Nolting , G. G. Reddy , A. Ramakanth , D. Meyer

Recent ultrafast magnetic-sensitive measurements [Phys. Rev. B 92, 184429 (2015) and Phys. Rev. B 96, 184414 (2017)] have revealed a delayed melting of the long-range cycloid spin-order in TbMnO$_3$ following photoexcitation across the…

The temperature $T$ and magnetic field $H$ dependence of the resistivity $\rho$ has been measured for La$_{0.8-y}$Sr$_{0.2}$MnO$_{3}$ (y=0 and 0.128) films grown on (100) SrTiO$_{3}$ substrates. The low-temperature $\rho$ in the…

Strongly Correlated Electrons · Physics 2009-11-10 X. J. Chen , H. -U. Habermeier , C. L. Zhang , H. Zhang , C. C. Almasan

We present a theoretical approach to describing the Mott transition of electrons on a two dimensional lattice that begins with the low energy effective theory of the Fermi liquid. The approach to the Mott transition must be characterized by…

Strongly Correlated Electrons · Physics 2012-01-25 David F. Mross , T. Senthil

The spin-wave spectrum in the metallic ferromagnetic lantha-num cubic manganites was investigated. The interactions with four coordination spheres (32 neighbors) were taken into ac-count. The Heisenberg superexchange between all manganese…

Strongly Correlated Electrons · Physics 2008-05-21 B. V. Karpenko , A. V. Kuznetzov

The infrared (IR) reflectivity spectra of orthorhombic manganese perovskites PrMnO$_3$ and CaMnO$_3$ are studied in the frequency range of optical phonon modes at temperatures varying from 300 to 4 K. The IR phonon spectra of these two…

Materials Science · Physics 2015-05-13 R. Sopracase , G. Gruener , E. Olive , J. C. Soret

Polycrystalline La$_{2/3}$Sr$_{1/3}$MnO$_{3}$ (LSMO) thin films were synthesized by pulsed laser ablation on single crystal (100) yttria-stabilized zirconia (YSZ) substrates to investigate the mechanism of magneto-transport in a granular…

Strongly Correlated Electrons · Physics 2011-11-03 P. K. Muduli , Gyanendra Singh , R. Sharma , R. C. Budhani

This paper presents an analysis of electron paramagnetic resonance parameters, i.e., g factor, linewidth, and intensity on powder samples of La1-xCaxMnO3 at the commensurate carrier concentrations of x = N/8 (N = 1, 2, 3, 4, 5, 6, and 7).…

Strongly Correlated Electrons · Physics 2009-11-11 Y. Liu , S. L. Wan , X. G. Li

Some possible connection between spin and charge degrees of freedom in magneto-resistive manganites is investigated through a thorough experimental study of the magnetic (AC susceptibility and DC magnetization) and transport (resistivity…

Materials Science · Physics 2007-11-01 S. Sergeenkov , J. Mucha , M. Pekala , V. Drozd , M. Ausloos

The magnetic properties of electron-doped manganite La0.3Ca0.7MnO3 and La0.3Ca0.7Mn0.8Cr0.2O3 polycrystalline samples prepared by sol-gel technique have been investigated between 5 and 300 K in magnetic fields ranging from 0 to 5 T. The…

Materials Science · Physics 2009-11-10 T Sudyoadsuk , R Suryanarayanan , P Winotai , L. E. Wenger

Two distinct ferromagnetic phases of LaMn$_{0.5}$Co$_{0.5}$O$_{3}$ having monoclinic structure with distinct physical properties have been studied. The ferromagnetic ordering temperature $\textit{T}_{c}$ is found to be different for both…

Strongly Correlated Electrons · Physics 2010-09-08 M. Viswanathan , P. S. Anil Kumar , Venkata Srinu Bhadram , Chandrabhas Narayana , A. K. Bera , S. M. Yusuf
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