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A series of four sigma-Fe(100-x)Mo(x) samples was investigated with ac magnetic susceptibility measurements. An evidence was found that the ground magnetic state of the samples is constituted by a spin glass (SG) with the spin glass…

强关联电子 · 物理学 2015-01-29 J. Przewoznik , S. M. Dubiel

Non-linear ac magnetic susceptibility terms viz. quadratic, chi2, and cubic, chi3, were measured versus temperature and frequency for a series of the sigma-phase Fe(100-x)Mo(x) (47<x<53) compounds. Clear evidence was found that the ground…

强关联电子 · 物理学 2016-02-18 S. M. Dubiel

Sigma-phase intermetallic compound of Fe54Cr46 was investigated using DC and AC magnetic susceptibility techniques. A clear-cut evidence was found that the sample orders magnetically at Tc=23.5 K and its ground magnetic state is constituted…

材料科学 · 物理学 2015-05-26 S. M. Dubiel , M. I. Tsindlekht , I. Felner

Magnetic properties of a sigma-phase Fe60V40 intermetallic compound were studied by means of ac and dc magnetic susceptibility and magnetocaloric effect measurements. The compound is a soft magnet yet it was found to behave like a…

强关联电子 · 物理学 2017-02-28 M. Balanda , S. M. Dubiel , R. Pelka

We have carried out a comprehensive investigation of magnetic properties of LuFe$_2$O$_4$, using AC susceptibility, DC magnetization and specific heat. A magnetic phase transition around $\sim$236 K was observed with DC magnetization and…

强关联电子 · 物理学 2020-07-29 Fan Wang , Jungho Kim , G. D. Gu , Young-June Kim

A low-temperature magnetism was revealed in a series of sigma-Fe(100-x)Mo(x) alloys (x=45-53). Its characterization has been done using vibrating sample magnetometry, M\"ossbauer spectroscopy, and ac magnetic susceptibility. The magnetic…

强关联电子 · 物理学 2015-11-26 J. Cieslak , S. M. Dubiel , M. Reissner

Systematic experimental (vibrating sample magnetometry) and theoretical (electronic structure calculations using charge and spin self-consistent Korringa-Kohn-Rostoker Green function method) studies were performed on a series of…

强关联电子 · 物理学 2014-11-12 J. Cieslak , S. M. Dubiel , M. Reissner , J. Tobola

We have thoroughly investigated the entire magnetic states of under doped ferromagnetic insulating manganite Nd0.8Sr0.2MnO3 through temperature dependent linear and non linear complex ac magnetic susceptibility measurements. This…

强关联电子 · 物理学 2015-05-19 S. Kundu , T. K. Nath

We report here a detailed study of AC/DC magnetization and longitudinal/transverse transport properties of La$_{1.2}$Sr$_{1.8}$Mn$_{2}$O$_{7}$ single crystals below $T_{c}$ = 121 K. We find that the resistivity upturn below 40 K is related…

强关联电子 · 物理学 2009-10-31 S. H. Chun , Y. Lyanda-Geller , M. B. Salamon , R. Suryanarayanan , G. Dhalenne , A. Revcolevschi

We report the synthesis, structure, and magnetic and transport properties of a new ternary intermetallic compound PrRhSn3 which crystallizes in LaRuSn3-type cubic structure (space group Pm-3n). At low applied fields the dc magnetic…

强关联电子 · 物理学 2014-07-22 V. K. Anand , D. T. Adroja , A. D. Hillier

We report a detailed study of dc magnetization and ac susceptibility performed on the zero field cooled (ZFC) and field cooled (FC) state of polycrystalline AuFe(11%) alloy. The temperature variation of ZFC and FC dc magnetization at low…

材料科学 · 物理学 2023-03-01 Sudip Pal , S. B. Roy , A. K. Nigam

We report on the structural, frequency dependent ac susceptibility, dc magnetization and magnetoresistance (MR) measurements on polycrystalline samples of La0.86Ca0.14Mn1-yCryO3(y = 0, 0.1 and 0.2) prepared by sol-gel technique. For y = 0,…

材料科学 · 物理学 2011-02-19 R. Suryanarayanan , T. Sudyoadsuk , T. Winotai

We report the magnetic, magnetocaloric, and magnetotransport properties of the semi-Heusler alloy Cu0.85Ni0.15MnSb, which exhibits coexistence of antiferromagnetic (AFM) and ferromagnetic (FM) phases. A broad magnetic phase transition is…

强关联电子 · 物理学 2016-03-30 Madhumita Halder , K. G. Suresh , M. D. Mukadam , S. M. Yusuf

Linear and nonlinear dynamic properties of a reentrant ferromagnet Cu$_{0.2}$Co$_{0.8}$Cl$_{2}$-FeCl$_{3}$ graphite bi-intercalation compound are studied using AC and DC magnetic susceptibility. This compound undergoes successive phase…

无序系统与神经网络 · 物理学 2007-05-23 Masatsugu Suzuki , Itsuko S. Suzuki

Anomalies in the temperature dependences of the recoil-free factor, f, and the average center shift, <CS>, measured by 57-Fe Mossbauer Spectroscopy, were observed for the first time in the archetype of the \sigma-phase alloys system, Fe-Cr.…

材料科学 · 物理学 2015-06-04 S. M. Dubiel , J. Cieslak , M. Reissner

Dynamic magnetic properties and ageing phenomena of the re-entrant ferromagnet (Fe0.20Ni0.80)75P16B6Al3 are investigated by time dependent zero field cooled magnetic relaxation, m (t), measurements. The influence of a temperature cycling…

无序系统与神经网络 · 物理学 2009-10-31 Kristian Jonason , Per Nordblad

We present here a detailed investigation into the magnetic ordering of full Heusler alloy Ga$_2$MnCo using dc, ac magnetization measurements, neutron diffraction and neutron depolarization experiments. Crystal structure at room temperature…

强关联电子 · 物理学 2018-05-21 Tamalika Samanta , P. A. Bhobe , A. Das , A. Kumar , A. K. Nigam

We investigated the physical properties of $TlFe_{2-x}Se_2$ single crystals. The resistivity of $TlFe_{2-x}Se_2$ shows typical semiconductor behavior with an activation energy of 25 meV. DC susceptibility indicates an antiferromagnetic…

强关联电子 · 物理学 2010-12-15 J. J. Ying , A. F. Wang , Z. J. Xiang , X. G. Luo , R. H. Liu , X. F. Wang , Y. J. Yan , M. Zhang , G. J. Ye , P. Cheng , X. H. Chen

A detailed investigation of the structural and magnetic properties, including magnetocaloric effect, re-entrant spin-glass behavior at low temperature, and critical behavior in polycrystalline Al$_2$MnFe Heusler alloy is reported. The…

The spin-glass behavior in the ferromagnetic phase of $\mathrm{Tm_2Cu_2In}$ was investigated by dc-, ac-magnetization, and non-equilibrium dynamics characterizations. Arc-melted polycrystalline compound of $\mathrm{Tm_2Cu_2In}$ crystallizes…

材料科学 · 物理学 2021-11-10 Baidyanath Sahu , R. Djoumessi Fobasso , Andre M. Strydom
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