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The orthorhombic perovskite SrIrO3 is a semimetal, an intriguing exception in iridates where the strong spin-orbit interaction coupled with electron correlations tends to impose a novel insulating state. We report results of our…

Strongly Correlated Electrons · Physics 2016-07-06 H. Zheng , J. Terzic , Feng Ye , X. G. Wan , D. Wang , Jinchen Wang , Xiaoping Wang , P. Schlottmann , S. J. Yuan , G. Cao

We combine the results of magnetic and transport measurements with neutron diffraction data to construct the structural and magnetic phase diagram of the entire family of SrMn$_{1-x}$Ru$_{x}$O$_3$ ($0 \leqslant x \leqslant 1$) perovskites.…

Materials Science · Physics 2009-11-13 S. Kolesnik , B. Dabrowski , O. Chmaissem

In this work, we investigate the structural, magnetic, and microwave magnetic dynamics of multilayered \([{\rm LSMO}/{\rm SRO}]_n\) heterostructures \((n = 1 \text{ and } 5)\) grown on SrTiO\(_3\) (001) substrates. X-ray diffraction…

We report the investigations of crystal structure, electrical resistivity, magnetization, specific heat, thermal conductivity, and thermoelectric power (TEP) on La0.7Sr0.3(Mn1-xRux)O3 (LSMRO) compounds with x = 0 to 0.90. From the analyses…

Strongly Correlated Electrons · Physics 2007-05-23 L. M. Wang. Jyh-Iuan Wu , Y. -K. Kuo

The perovskite antiferromagnetic ($T_{\rm N}$ $\sim$ 220 K) insulator EuNiO$_3$ undergoes at ambient pressure a metal-to-insulator transition at $T_{\rm MI}$ = 460 K which is associated with a simultaneous orthorhombic-to-monoclinic…

We report the temperature variation of the $^{119}$Sn-M\"{o}ssbauer spectra of the antiperovskite (inverse perovskite) oxide superconductor Sr$_{3-x}$SnO. Both superconductive (Sr-deficient) and non-superconductive (nearly stoichiometric)…

The temperature dependences of magnetization, electrical transport, and thermal transport properties of antiperovskite compound SnCMn3 have been investigated systematically. A positive magnetoresistance (~11%) is observed around the…

Strongly Correlated Electrons · Physics 2015-05-13 B. S. Wang , P. Tong , Y. P. Sun , X. B. Zhu , W. H. Song , Z. R. Yang , J. M. Dai

We report electrical measurements showing the degradation processes of LaMnO$_{3-y}$ (LaMnO) in LaMnO/normal metal interface in both point contact and planar-type junctions. Immediately after the preparation of the interface, the…

Materials Science · Physics 2009-11-07 A. Plecenik , K. Frohlich , J. P. Espinos , J. P. Holgado , A. Halabica , M. Pripko , A. Gilabert

The present work aims to study the effect of ion irradiation on structural and electrical properties and their correlation with the defects in Zn1-xMnxO type system. Zn1-xMnxO (x = 0.02, 0.04) samples have been synthesized by solid-state…

Materials Science · Physics 2011-05-10 S. K. Neogi , S. Chattopadhyay , Aritra Banerjee , S. Bandyopadhyay , A. Sarkar , Ravi Kumar

Ti-substituted perovskites, La0.7Sr0.3Mn1-xTixO3, with x between 0 to 0.20, were investigated by neutron diffraction, magnetization, electric resistivity, and magnetoresistance (MR) measurements. All samples show a rhombohedral structure…

Materials Science · Physics 2009-11-11 M. S. Kim , J. B. Yang , Q. Cai , X. D. Zhou , W. J. James , W. B. Yelon , P. E. Parris , D. Buddhikot , S. K. Malik

Rectifying semiconductor junctions are crucial to electronic devices. They convert alternating current into direct one by allowing unidirectional charge flows. In analogy to the current-flow rectification for itinerary electrons, here, a…

Mott physics is characterized by an interaction-driven metal-to-insulator transition in a partially filled band. In the resulting insulating state, antiferromagnetic orders of the local moments typically develop, but in rare situations no…

The interface between the band gap insulators LaAlO3 and SrTiO3 is known to host a highly mobile two-dimensional electron gas. Here we report on the fabrication and characterization of the NdGaO3/SrTiO3 interface, that shares with…

Exchange bias stems from the interaction between different magnetic phases and therefore it generally occurs in magnetic multilayers. Here we present a large exchange bias in a single SrRuO3 layer induced by helium ion irradiation. When the…

The polarity-dependent resistive-switching across metal-Pr0.7Ca0.3MnO3 interfaces is investigated. The data suggest that shallow defects in the interface dominate the switching. Their density and fluctuation, therefore, will ultimately…

Materials Science · Physics 2009-11-11 S. Tsui , Y. Q. Wang , Y. Y. Xue , C. W. Chu

Perovskites with tunable and switchable polarization hold immense promise for unlocking novel functionalities. Using density-functional theory, we reveal that intrinsic defects can induce, enhance, and control polarization in…

Materials Science · Physics 2025-06-03 Wahib Aggoune , Matthias Scheffler

Emergent magnetic states at oxide interfaces arise from the interplay of charge transfer, orbital reconstruction, and dimensional confinement, offering a route to engineered correlated-electron behavior in nanoscale spintronic materials.…

The authors report on the crystallographic orientation dependence of the Schottky properties for heterojunctions between a half-metallic ferromagnet La$_0.6$Sr$_0.4$MnO$_3$ (LSMO) and Nb-doped SrTiO3 semiconductor. The Schottky barrier…

Materials Science · Physics 2015-05-13 M. Minohara , Y. Furukawa , R. Yasuhara , H. Kumigashira , M. Oshima

The electronic and magnetic properties of Fe/GaAs(001) magnetic junctions are investigated using first-principles density-functional calculations. Abrupt and intermixed interfaces are considered, and the dependence of charge transfer,…

Other Condensed Matter · Physics 2009-11-11 D. O. Demchenko , Amy Y. Liu

We measured the low temperature subgap resistance of titanium nitride (superconductor, Tc=4.6K)/highly doped silicon (degenerated semiconductor) SIN junctions, where I stands for the Schottky barrier. At low energies, the subgap conductance…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 D. Quirion , F. Lefloch , M. Sanquer