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相关论文: Magnetic and dielectric behavior of the spin-chain…

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We present measurements of the magnetic moment and specific heat of single crystals of the spin-chain insulator, Pr3RuO7. The susceptibility indicates that three-dimensional antiferromagnetic order sets in at TN = 54 K, with spin…

强关联电子 · 物理学 2009-11-11 M. Freamat , X. N. Lin , V. Durairaj , S. Chikara , G. Cao , J. W. Brill

A binary intermetallic compound Er5Pd2 has been investigated using dc and ac magnetic susceptibilities, magnetic memory effect, isothermal magnetization, non-linear dc susceptibility, heat capacity and magnetocaloric effect studies.…

材料科学 · 物理学 2018-05-23 Mohit K. Sharma , Kavita Yadav , K. Mukherjee

DyFeO3 exhibits a weak ferromagnetism (TNFe ~ 645 K) that disappears below a spin-reorientation (Morin) transition at TSRFe ~ 50 K. It is also known that applied magnetic field induces ferroelectricity at the magnetic ordering temperature…

材料科学 · 物理学 2013-01-16 B. Rajeswaran , D. Sanyal , Mahuya Chakrabarti , Y. Sundarayya , A. Sundaresan , C. N. R. Rao

Magnetization, DC and AC bulk susceptibility of the $S$=1 Haldane chain system doped with electronic holes, Y$_{2-x}$Ca$_x$BaNiO$_5$ (0$\leq$x$\leq$0.20), have been measured and analyzed. The most striking results are (i) a sub-Curie power…

强关联电子 · 物理学 2009-11-07 E. Janod , C. Payen , F. -X. Lannuzel , K. Schoumacker

We report that the major features in the temperature dependence of dc and ac magnetization of a well-known spin-chain compound, Ca3Co2O6, which has been known to exhibit two complex magnetic transitions due to geometrical frustration (one…

The ZrSiS-class of layered materials offer interesting topological and magnetic characteristics suitable for spintronics applications. In this work, we have synthesized a polycrystalline NdBiTe using solid-state reaction technique and have…

We report a structural, thermodynamic and transport study of the newly synthesized Sr5Rh4O12, Ca5Ir3O12 and Ca4IrO6 single crystals. These quasi-one-dimensional insulators consist of a triangular lattice of spin chains running along the…

强关联电子 · 物理学 2015-06-25 G. Cao , V. Durairaj , S. Chikara , S. Parkin , P. Schlottmann

SrEr$_2$O$_4$ has been characterised by low-temperature powder neutron diffraction, as well as single crystal specific heat and magnetisation measurements. Magnetisation measurements show that the magnetic system is highly anisotropic at…

强关联电子 · 物理学 2008-11-18 O. A. Petrenko , G. Balakrishnan , N. R. Wilson , S. de Brion , E. Suard , L. C. Chapon

The dielectric constant of the incipient ferroelectric EuTiO$_3$ exhibits a sharp decrease at about 5.5K, at which temperature antiferromagnetic ordering of the Eu spins simultaneously appears, indicating coupling between the magnetism and…

材料科学 · 物理学 2009-11-07 Qing Jiang , Hua Wu

We have performed field-swept 59Co NMR measurements on the 'exotic' spin-chain material, Ca3Co2O6, crystallizing in K4CdCl6-type rhombohedral structure, believed to exhibit two magnetic transition temperatures (around 24 and 12 K). This is…

强关联电子 · 物理学 2009-11-10 E. V. Sampathkumaran , N. Fujiwara , S. Rayaprol , P. K. Madhu , Y. Uwatoko

The area of research to discover new Li containing materials and to understand their physical properties has been of constant interest due to applications potential for rechargeable batteries. Here, we present the results of magnetic…

强关联电子 · 物理学 2016-08-01 Sanjay Kumar Upadhyay , Kartik K Iyer , S. Rayaprol , P. L. Paulose , E. V. Sampathkumaran

The compound Ba3HoRu2O9 magnetically orders at 50 K (TN1) followed by another complex magnetic ordering at 10.2 K (TN2). The 2nd magnetic phase transition was characterized by the co-existence of two competing magnetic ground states…

强关联电子 · 物理学 2024-06-18 E. Kushwaha , G. Roy , M. Kumar , A. M. dos Santos , S. Ghosh , D. T. Adroja , V. Caignaert , O. Perez , A. Pautrat , T. Basu

The trigonal compound EuSn2As2 was recently discovered to host Dirac surface states within the bulk band gap and orders antiferromagnetically below the Neel temperature TN = 24 K. Here the magnetic ground state of single-crystal EuSn2As2…

强关联电子 · 物理学 2022-04-05 Santanu Pakhira , M. A. Tanatar , Thomas Heitmann , David Vaknin , D. C. Johnston

We report inelastic neutron scattering studies of magnetic excitations in antiferromagnetically ordered SrFe$_{2}$As$_{2}$ ($T_{N}=220$ K), the parent compound of the FeAs-based superconductors. At low temperatures (T=7 K), the spectrum of…

Magnetic and ferroelectric properties of layered geometrically frustrated cluster compound FeTe$_2$O$_5$Br were investigated with single-crystal neutron diffraction and dielectric measurements. Incommensurate amplitude modulated magnetic…

材料科学 · 物理学 2009-10-01 M. Pregelj , O. Zaharko , A. Zorko , Z. Kutnjak , P. Jeglic , P. J. Brown , M. Jagodic , Z. Jaglicic , H. Berger , D. Arcon

Cross-correlation between magnetic and dielectric properties has been attracting renewed interest because of the fundamental as well as technological importance of controlling the electric (magnetic) polarization by an external magnetic…

强关联电子 · 物理学 2007-05-23 D. Higashiyama , N. Kida , S. Miyasaka , T. Arima , Y. Tokura

We investigated complex magnetic properties of multifunctional LaCrO3-LaFeO3 system. The magnetic measurements substantiate the presence of competing complex magnetic ordering against temperature, showing paramagnetic to ferrimagnetic…

强关联电子 · 物理学 2019-08-20 Brajesh Tiwari , Ambesh Dixit , M. S. Ramachandra Rao

We have investigated the structural, magnetic, thermodynamic, and dielectric properties of polycrystalline CoCr$_2$O$_4$, an insulating spinel exhibiting both ferrimagnetic and spiral magnetic structures. Below $T_c$ = 94 K the sample…

材料科学 · 物理学 2007-05-23 G. Lawes , B. Melot , K. Page , C. Ederer , M. A. Hayward , Th. Proffen , R. Seshadri

The spinel FeV2O4 is known to exhibit peculiar physical properties, which is generally ascribed to the unusual presence of two cations showing a pronounced interplay between spin, orbital and lattice degrees of freedom (Fe2+ and V3+ on the…

材料科学 · 物理学 2012-02-16 Q. Zhang , K. Singh , F. Guillou , C. Simon , Y. Breard , V. Caignaert , V. Hardy

The chain-like system Ba_{3}Cu_{3}Sc_4O_{12} has potentially interesting magnetic properties due to the presence of Cu^{2+} and a structure-suggested low-dimensionality. We present magnetization M versus magnetic field H and temperature T,…