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Related papers: Two Spin-State Crystallizations in LaCoO$_{3}$

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The doping series Eu1-xCaxCoO3-d provides a rather peculiar way to study the spin-state transition in cobalt-based complex oxides since partial substitution of Eu3+ ions by Ca2+ ions does not increase the mean valence state of cobalt but is…

We report the observation of spin glass state in the double perovskite oxide Sr$_{2}$FeCoO$_{6}$ prepared through sol-gel technique. Initial structural studies using x rays reveal that the compound crystallizes in tetragonal $I 4/m$…

A wide family of cobalt oxides of formulation (Pr,Ln,Ca)CoO3 (Ln being a lanthanide) exhibits a coupled valence and spin-state transition (VSST) at a temperature T*, which involves two concomitant modifications: (i) a change in the spin…

Strongly Correlated Electrons · Physics 2015-06-15 V. Hardy , F. Guillou , Y. Bréard

The field of double perovskites is now advancing to three magnetic elements on the A, B and B$'$ sites. A series of iridium-based double perovskite compounds, $Ln_2$CoIrO$_6$ ($Ln$ = Eu, Tb, Ho) with three magnetic elements were synthesized…

The electronic structure of epitaxial films on LaCoO3(LCO) has been studied within first principle electronic structure calculations. A spin state transition is found to take place as a function of lattice strain which freezes in the…

Strongly Correlated Electrons · Physics 2009-01-05 Kapil Gupta , Priya Mahadevan

The nanoscopic magneto-electronic phase separation in doped La1-xSrxCoO3 perovskites was studied with local probes. The phase separation is directly observed by M\"ossbauer spectroscopy in the studied doping range of 0.05 <= x <= 0.25 both…

We investigate the ground state and dynamics of a mixture of spin-1 and spin-2 Bose-Einstein condensates of ${}^{87}{\rm{Rb}}$ atoms. For the experimentally measured interaction coefficients, the ground state exhibits phase separation…

Quantum Gases · Physics 2024-09-27 Uyen Ngoc Le , Hieu Binh Le , Hiroki Saito

Rapidly developing science and technology demand new materials with versatile and promising properties for practical applications. In this context, pseudo-octahedral iron(II) spin crossover (SCO) complexes are particularly appealing - not…

The coexistence of the strongly correlated 3$d$ transition metal (TM) atom and the strong spin-orbit coupling (SOC) of 5$d$ TM atom is potential to host exotic physical phenomena. In the present work, we have studied the magnetism resulting…

Strongly Correlated Electrons · Physics 2020-02-19 Shreemoyee Ganguly , Sayantika Bhowal

We report a thorough study of Y$_{0.7}$La$_{0.3}$VO$_3$ single crystals by measuring magnetic properties, specific heat, thermal conductivity, x-ray and neutron diffraction with the motivation of revealing the lattice response to the…

Strongly Correlated Electrons · Physics 2019-12-04 J. -Q. Yan , W. Tian , H. B. Cao , S. Chi , F. Ye , A. Llobet , Q. Chen , J. Ma , Y. Ren , J. -G. Cheng , J. -S. Zhou , M. A. McGuire , R. J. McQueeney

Using density functional theory within the LSDA + U method, we investigate the effect of strain on the spin state and magnetic ordering in perovskite lanthanum cobaltite, LaCoO3. We show that, while strain-induced changes in lattice…

Materials Science · Physics 2009-02-18 James M. Rondinelli , Nicola A. Spaldin

We study ferromagnetic ordering and microscopic inhomogeneity in tensile strained LaCoO$_3$ using numerical simulations. We argue that both phenomena originate from effective superexchange interactions between atoms in the high-spin (HS)…

Strongly Correlated Electrons · Physics 2020-06-03 Andrii Sotnikov , Kyo-Hoon Ahn , Jan Kuneš

We have described properties of LiCoO_2 within the Quantum Atomistic Solid State (QUASST) theory taking into account very strong electron correlations, predominantly of the intra-atomic origin, spin-orbit coupling and the detailed local…

Strongly Correlated Electrons · Physics 2008-10-08 R. J. Radwanski , Z. Ropka

We present measurements of the magnetic susceptibility and of the thermal expansion of a LaCoO$_3$ single crystal. Both quantities show a strongly anomalous temperature dependence. Our data are consistently described in terms of a…

Strongly Correlated Electrons · Physics 2009-11-07 C. Zobel , M. Kriener , D. Bruns , J. Baier , M. Gr"uninger , T. Lorenz , P. Reutler , A. Revcolevschi

We carried out temperature-dependent (20 - 550 K) measurements of resonant inelastic X-ray scattering on LaCoO$_3$ to investigate the evolution of its electronic structure across the spin-state crossover. In combination with charge-transfer…

The electronic ground state of Ca3LiOsO6 was recently considered within an intermediate coupling regime that revealed J=3/2 spin-orbit entangled magnetic moments. Through inelastic neutron scattering and density functional theory we…

Strongly Correlated Electrons · Physics 2017-11-29 S. Calder , D. J. Singh , V. O. Garlea , M. D. Lumsden , Y. G. Shi , K. Yamaura , A. D. Christianson

The samples LaCoO3 with dilute substitutions on cobalt sites have been studied using the resistivity, thermopower and magnetic susceptibility measurements over the temperature range up to ~900 K. The Co-site substitution does not affect the…

Materials Science · Physics 2010-07-30 J. Hejtmanek , Z. Jirak , K. Knizek , M. Marysko , M. Veverka , C. Autret

Recently, the perovskite BiCoO$_3$ has been shown experimentally to be isostructural with PbTiO$_3$, while simultaneously the $d^6$ Co$^{3+}$ ion has a high spin ground state with $C$-type antiferromagnetic ordering. Using hybrid density…

Materials Science · Physics 2016-05-04 Leigh Weston , Xiangyuan Cui , Simon P. Ringer , Catherine Stampfl

We study the structural, magnetic, transport and electronic properties of LaCoO$_3$ with Sr/Nb co-substitution, i.e., La$_{(1-2x)}$Sr$_{2x}$Co$_{(1-x)}$Nb$_{x}$O$_3$ using x-ray and neutron diffraction, dc and ac-magnetization, neutron…

Strongly Correlated Electrons · Physics 2020-08-19 Rishabh Shukla , Anil Jain , M. Miryala , M. Murakami , K. Ueno , S. M. Yusuf , R. S. Dhaka

A field-induced crossover is observed in the resistivity and magnetization (M) of a La(0.7)Pb(0.3)MnO(3) single crystal. The field-dependence of the resistivity and M suggests that a small spin-canted species with mean-field-like…

Strongly Correlated Electrons · Physics 2007-05-23 Y. Y. Xue , B. Lorenz , A. K. Heilman , M. Gospodinov , S. G. Dobreva , C. W. Chu