English
Related papers

Related papers: Environment-assisted crack nucleation in La(Fe,Mn,…

200 papers

We investigate the existence of linear magnetism in the metal organic framework materials MOF-74-Fe, MOF-74-Co, and MOF-74-Ni, using first-principles density functional theory. MOF-74 displays regular quasi-linear chains of open-shell…

Materials Science · Physics 2013-03-08 Pieremanuele Canepa , Yves J. Chabal , T. Thonhauser

We studied the crystal and magnetic structure of the La$_{1-x}$Ca$_{x}$MnO$_{3}$ compound for $x=0.8$ and $x=0.85$. At T=300 K both samples are paramagnetic with crystallographic symmetry $Pnma$. At low temperatures they undergo a…

Strongly Correlated Electrons · Physics 2016-08-16 M. Pissas , G. Kallias , M. Hofmann , D. M. Többens

Amorphous materials exhibit various characteristics that are not featured by crystals and can sometimes be tuned by their degree of disorder (DOD). Here, we report results on the mechanical properties of monolayer amorphous carbon (MAC) and…

Materials Science · Physics 2024-05-15 Xi Zhang , Yu-Tian Zhang , Yun-Peng Wang , Shiyu Li , Shixuan Du , Yu-Yang Zhang , Sokrates T. Pantelides

We present a comprehensive magnetic and structural phase diagram for $\mathrm{Y_{1-x}Lu_xBaCo_4O_7}$, established through neutron diffraction and magnetization measurements. Our results outline the evolution of various nuclear structures,…

Strongly Correlated Electrons · Physics 2023-12-08 Sevda Sahinbay , Hong Zheng , John F. Mitchell , Stephan Rosenkranz , Omar Chmaissem

In this paper we attempt to understand the different nature of first order magnetic transformation in Mn$_3$SnC as compared to that in Mn$_3$GaC. The transformation in Mn$_3$SnC is close to room temperature (T$_t \approx$ 280K) and is…

Materials Science · Physics 2015-06-30 E. T. Dias , K. R. Priolkar , A. Das , G. Aquilanti , Ö. Çakir , M. Acet , A. K. Nigam

We investigate a series of manganese oxides, the La0.225Pr0.4(Ca1-xSrx)0.375MnO3 system. The x = 0 sample is a prototype compound for the study of phase separation in manganites, where ferromagnetic and charge ordered antiferromagnetic…

Strongly Correlated Electrons · Physics 2016-09-14 G. G. Eslava , F. Parisi , P. L. Bernardo , M. Quintero , G. Leyva , L. F. Cohen , L. Ghivelder

Neutron diffraction studies as a function of temperature on solid solutions of MnSe and MnTe in the Se rich region are presented. Interestingly as Te is doped in MnSe, the structural transformation to NiAs phase diminishes, both in terms of…

Materials Science · Physics 2014-10-27 Kapil E. Ingle , J. B. C. Efrem D'Sa , A. Das , K. R. Priolkar

The crystallographic and magnetic properties of the cleavable 4d3 transition metal compound a-MoCl3 are reported, with a focus on the behavior above room temperature. Crystals were grown by chemical vapor transport and characterized using…

Using atomic force microscopy experiments and molecular dynamics simulations of gold nanoislands on graphite, we investigate why ultra-small friction commonly associated with structural lubricity can be observed even under ambient…

Soft Condensed Matter · Physics 2024-07-08 Wai H. Oo , Hongyu Gao , Martin H. Müser , Mehmet Z. Baykara

We report on the evolution of the magnetic structure of BiFeO3 thin films grown on SrTiO3 substrates as a function of Sm doping. We determined the magnetic structure using neutron diffraction. We found that as Sm increases, the magnetic…

Applied magnetic fields can alter phase equilibria and kinetics in steels; however, quantitatively resolving how magnetic, chemical, and elastic driving forces jointly influence the microstructure remains challenging. We develop a…

Heterostructure engineering provides an efficient way to obtain several unconventional phases of LaNiO3, which is otherwise paramagnetic, metallic in bulk form. In this work, a new class of short periodic superlattices, consisting of LaNiO3…

Strongly Correlated Electrons · Physics 2019-10-18 S. Middey , Ranjan Kumar Patel , D. Meyers , Xiaoran Liu , M. Kareev , P. Shafer , J. -W. Kim , P. J. Ryan , J. Chakhalian

There are still debates regarding the mechanisms that lead to hot cracking in parts build by additive manufacturing (AM) of non-weldable Ni-based superalloys. This lack of in-depth understanding of the root causes of hot cracking is an…

The evolution of a crack front under mixed mode loading (I+III) is studied using a phase field model in 3 dimensions with no stress boundary conditions. As previously observed experimentally in gels, there is a relaxation toward a geometry…

Soft Condensed Matter · Physics 2016-08-24 Hervé Henry

Initial powder mixtures of Cu, Fe and Co are exposed to severe plastic deformation by high-pressure torsion to prepare solid solutions. A broad range of compositions is investigated, whereas this study aims at the synthesis of soft magnetic…

We study the underlying chemical, electronic and magnetic properties of a number of magnetite based thin films. The main focus is placed onto NiO/Fe$_3$O$_4$(001) bilayers grown on MgO(001) and Nb-SrTiO$_3$(001) substrates. We compare the…

We have detected strong dichroism in the Ni $L_{2,3}$ x-ray absorption spectra of monolayer NiO films. The dichroic signal appears to be very similar to the magnetic linear dichroism observed for thicker antiferromagnetic NiO films. A…

Strongly Correlated Electrons · Physics 2007-05-23 M. W. Haverkort , S. I. Csiszar , Z. Hu , S. Altieri , A. Tanaka , H. H. Hsieh , H. -J. Lin , C. T. Chen , T. Hibma , L. H. Tjeng

In this study, the crystal structure and magnetic properties of La$_{2-x} A'_{x}$Ni$_{7}$ compounds with magnetic rare earth elements ($A$' = Sm, Gd) have been investigated combining X-ray powder diffraction and magnetic measurements. These…

Additive manufacturing (AM) offers an unprecedented opportunity for the quick production of complex shaped parts directly from a powder precursor. But its application to functional materials in general and magnetic materials in particular…

Materials Science · Physics 2019-04-02 Min Yi , Bai-Xiang Xu , Oliver Gutfleisch

We report single crystal growth and magnetic susceptibility and neutron diffraction studies of the S=1/2 quasi-1D antiferromagnet CaCu2O3. The structure of this material is similar to that of the prototype two-leg spin-ladder compound…

Condensed Matter · Physics 2009-10-31 V. Kiryukhin , Y. J. Kim , K. J. Thomas , F. C. Chow , R. W. Erwin , Q. Huang , M. A. Kastner , R. J. Birgeneau
‹ Prev 1 3 4 5 6 7 10 Next ›