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Related papers: Structure-Property Relationship in Layered BaMn2Sb…

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We have successfully synthesized a new layered iron oxychalcogenide BaFe2OSe2 single crystal. This compound is built up of Ba and Fe-Se(O) layers alternatively stacked along the c-axis. The Fe-Se(O) layers contain double chains of…

Superconductivity · Physics 2015-06-05 Hechang Lei , Hyejin Ryu , John Warren , A. I. Frenkel , V. Ivanovski , B. Cekic , C. Petrovic

The domain structure of a MnSb$_2$Te$_4$ single crystal with a Curie temperature $T_C \approx 45~K$ was studied using the high-resolution Bitter decoration technique. Magnetotransport measurements confirm a soft ferromagnetic ordering with…

Transition metal dichalcogenides (TMDC) stand out with their high chemical stability and the possibility to incorporate a wide range of magnetic species between the layers. The behavior of conduction electrons in such materials intercalated…

We have studied the magnetic properties of Ba_2FeNbO_6 and Ba_2MnNbO_6. it is seen that Ba_2FeNbO_6 is an antiferromagnet with a weak ferromagnetic behaviour at 5K while Ba_2MnNbO_6 shows two magnetic transitions one at 45 K and the other…

Strongly Correlated Electrons · Physics 2009-11-10 N. Rama , J. B. Philipp , M. Opel , K. Chandrasekaran , V. Sankaranarayanan , R. Gross , M. S. Ramachandra Rao

Single crystals of Ba(Fe_(1-x)Mn_x)_2As_2, 0<x<0.148, have been grown and characterized by structural, magnetic, electrical transport and thermopower measurements. Although growths of single crystals of Ba(Fe_(1-x)Mn_x)_2As_2 for the full…

Superconductivity · Physics 2015-05-30 A. Thaler , H. Hodovanets , M. S. Torikachvili , S. Ran , A. Kracher , W. Straszheim , J. Q. Yan , E. Mun , P. C. Canfield

Heterostructures of superconducting and ferromagnetic materials are of fundamental interest because of the mutual interaction of antagonistic kinds of ordering at the S-F interface. Normally, the superconducting transition temperature Tc…

We investigate the electronic and magnetic structures of the 122 (AM$_2$B$_2$) hexagonal transition-metal pnictides with A=(Sr, Ca), M=(Cr, Mn, Fe, Co, Ni) and B=(As, P, Sb). It is found that the family of materials share critical…

Superconductivity · Physics 2017-11-21 Jinfeng Zeng , Shengshan Qin , Congcong Le , Jiangping Hu

Electronic states under pressure exhibit unconventional spin and charge dynamics that provide a powerful route to uncover exotic phases in quantum materials. Here, we present the structural, magnetic, and electronic evolution of…

The magnetic structure and metal-insulator transition in antiferromagnetic (AFM) BaMn2As2 and Ba1-xKxMn2As2 single crystals have been investigated by 55Mn and 75As nuclear magnetic resonance (NMR) measurements. In the parent AFM insulator…

Strongly Correlated Electrons · Physics 2014-05-23 S. Yeninas , Abhishek Pandey , V. Ogloblichev , K. Mikhalev , D. C. Johnston , Y. Furukawa

We report measurements on Ti$_4$MnBi$_2$, where a crystal structure involving linear chains of Mn ions suggests one-dimensional magnetic character. The electrical resistivity is metallic, consistent with the results of electronic structure…

Strongly Correlated Electrons · Physics 2020-07-15 Abhishek Pandey , Ping Miao , M. Klemm , H. He , H. Wang , X. Qian , J. W. Lynn , M. C. Aronson

Possible candidates for the Mg2B3Ox nanostructures observed in bulk of polycrystalline MgB2 (Ref.1) have been studied using a combination of Z-contrast imaging, electron energy loss spectroscopy (EELS) and first-principles calculations. The…

Superconductivity · Physics 2009-11-10 Juan C. Idrobo , Serdar Ogut , Taner Yildirim , Robert F. Klie , Nigel D. Browning

This is a report on the new 122 ternary transition-metal pnictide of BaMn2Bi2, which is crystallized from bismuth flux. BaMn2Bi2 adopts ThCr2Si2-type structure (I4/mmm) with a = 4.4902(3) {\AA} and c = 14.687(1) {\AA}; it is…

Superconductivity · Physics 2013-06-13 Bayrammurad Saparov , Athena S. Sefat

A detailed investigation of Ba$_2$MnGe$_2$O$_7$ was performed in its low-temperature magnetoelectric state combining neutron diffraction with magnetization measurements on single crystals. In the paramagnetic state at 10 K, polarized…

Strongly Correlated Electrons · Physics 2023-03-07 A. Sazonov , H. Thoma , R. Dutta , M. Meven , A. Gukasov , R. Fittipaldi , V. Granata , T. Masuda , B. Náfrádi , V. Hutanu

First-principles calculations are performed to study the electronic structures and topological phases of magnetic layered materials MnBi2Te4, MnBi2Se4 and MnSb2Te4 under different film thicknesses, strains and spin-orbit coupling (SOC)…

Computational Physics · Physics 2021-04-14 Ping Li , Jiangying Yu , Ying Wang , Weidong Luo

Eu-based Zintl-phase materials EuA$_2$Pn$_2$ (A = Mg, In, Cd, Zn; Pn = Bi, Sb, As, P) have generated significant recent interest owing to the complex interplay of magnetism and band topology. Here, we investigated the electronic, magnetic,…

Strongly Correlated Electrons · Physics 2022-07-27 Santanu Pakhira , Farhan Islam , Evan O'Leary , M. A. Tanatar , Thomas Heitmann , R. Prozorov , Adam Kaminski , David Vaknin , D. C. Johnston

We study the properties of ThCr$_2$Si$_2$ structure BaMn$_2$As$_2$ and BaMn$_2$Sb$_2$ using density functional calculations of the electronic and magnetic as well experimental measurements on single crystal samples of BaMn$_2$As$_2$. These…

Materials Science · Physics 2009-02-25 J. an , A. S. Sefat , D. J. Singh , M. H. Du

Lanthanide (Ln) based LnSbTe materials have garnered significant attention due to rich interplay of long range magnetic ordering and topological properties, driven by unique crystalline symmetry, 4f electron interactions, and pronounced…

The complex metal oxides Mn2ASbO6 (A=In, Sc) with a corundum-related structure A3BO6 have been prepared as polycrystalline powders by a solid state reaction route. The crystal structure and magnetic properties have been investigated using a…

Materials Science · Physics 2011-11-21 S. A. Ivanov , P. Nordblad , R. Mathieu , R. Tellgren , E. Politova , G. André

The review considers bulk MgB2-based materials in terms of their structure, superconducting and mechanical properties. Superconducting transition temperatures of 34.5-39.4 K, critical current densities of 1.8-1.0 x E6 A/sq.cm in self field…

Superconductivity · Physics 2009-12-25 T. A. Prikhna

The rare-earth compounds R2O2Bi (R=Tb, Dy, Er, Lu, Y) are newly discovered superconductors in the vicinity of a rare-earth magnetic long-range order. In this work, we determine the magnetic order of the parent compound Dy2O2Te by neutron…