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相关论文: Magnetism in Gallium doped CeFe_2: The martensitic…

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For the first time, we find that the dynamic antiferromagnetic phase present in CeFe2 gets stabilized with Ga and Si substitutions. We find that phenomena such as strain-induced first order jumps in the magnetization curves, asymmetry…

强关联电子 · 物理学 2010-05-24 Arabinda Haldar , K. G. Suresh , A. K. Nigam

We report the effect of Si doping on the magnetization behavior of CeFe2. It is found that Si stabilizes the dynamic antiferromagnetic state of CeFe2. Multi-step magnetization behavior, unusual relaxation effect, thermal and magnetic…

强关联电子 · 物理学 2010-11-01 Arabinda Haldar , K. G. Suresh , A. K. Nigam

We have studied selected rare earth doped and transition metal doped CeFe2 compounds by examining their structural, magnetic and magneto-thermal properties. With substitution of Ce by 5 and 10% Gd and 10% Ho, the Curie temperature can be…

强关联电子 · 物理学 2015-05-19 Arabinda Haldar , K. G. Suresh , A. K. Nigam

The magnetic and magnetostructural properties of the polycrystalline Ce(Fe0.975Ga0.025)2 have been investigated as a function of temperature and magnetic field. In Ce(Fe0.975Ga0.025)2 the magnetic transition from antiferromagnetic (AFM) to…

Field variation of heat capacity at fixed temperatures is investigated to identify the origin of the field induced first order phase transition in polycrystalline Ce(Fe$_{0.094}$Al$_{0.04}$)$_2$ sample. The heat capacity at 4.5K and 3.5K…

Single crystals of the new ternary compound Ce2Ga12Pt were prepared by the self-flux technique. The crystal structure with the space group P4/nbm was established from single-crystal X-ray diffraction data and presents a derivative of the…

强关联电子 · 物理学 2012-06-12 Olga Sichevych , Cornelius Krellner , Yuri Prots , Yuri Grin , Frank Steglich

A systematic investigation about the structure and magnetism of Fe75-xCr25Gax (11<x<33) and Fe50Cr50-yGay (0<y<33) series has been carried out in this work. It shows that the parent Fe50Cr25Ga25 phase has higher tolerance for Ga replacing…

材料科学 · 物理学 2019-01-01 H. G. Zhang , B. T Song , J. Chen , M. Yue , E. K. Liu , W. H. Wang , G. H. Wu

A systematic study of magnetic properties of Ni2+xMn1-xGa (0 \le x \le 0.19) Heusler alloys undergoing structural martensite-austenite transformations while in ferromagnetic state has been performed. From measurements of spontaneous…

材料科学 · 物理学 2009-11-10 V. V. Khovailo , V. Novosad , T. Takagi , D. A. Filippov , R. Z. Levitin , A. N. Vasilev

Rare-earth-based permanent-magnet materials rich in iron have relatively low ferromagnetic ordering temperatures. This is believed to be due to the presence of antiferromagnetic exchange interactions, besides the ferromagnetic interactions…

材料科学 · 物理学 2009-11-11 Y. Janssen , S. Chang , A. Kreyssig , A. Kracher , Y. Mozharivskyj , S. Misra , P. C. Canfield

Electrical control of magnetism of a ferromagnetic semiconductor offers exciting prospects for future spintronic devices for processing and storing information. Here, we report observation of electrically modulated magnetic phase transition…

介观与纳米尺度物理 · 物理学 2020-06-19 Ivan. A. Verzhbitskiy , Hidekazu Kurebayashi , Haixia Cheng , Jun Zhou , Safe Khan , Yuan Ping Feng , Goki Eda

The antiferromagnetic heavy-fermion compound Ce$_2$RhIn$_8$ belongs to the same family and bears similarities with the well-studied prototypical material CeRhIn$_5$, which demonstrates a unique behavior under applied magnetic field. Here,…

强关联电子 · 物理学 2025-05-19 T. Klein , C. Marcenat , A. Demuer , J. Sarrade , D. Aoki , I. Sheikin

We have successfully synthesized a Ba6Ge25 clathrate, substituting 3 Fe per formula unit by Ge. This chiral clathrate has Ge sites forming a framework of closed cages and helical tunnel networks. Fe atoms randomly occupy these sites, and…

材料科学 · 物理学 2009-11-10 Yang Li , Joseph H. Ross

Using x-ray powder diffraction technique at various temperatures and applied magnetic fields, we have studied the magnetostructural properties of Ce(Fe0.95Si0.05)2. The x-ray diffraction data establish quantitative relationships between…

强关联电子 · 物理学 2010-05-21 Arabinda Haldar , Niraj K. Singh , Ya. Mudryk , K. G. Suresh , A. K. Nigam , V. K. Pecharsky

Doping of the band insulator FeS$_2$ with Co on the Fe site introduces a small density of itinerant carriers and magnetic moments. The lattice constant, AC and DC magnetic susceptibility, magnetization, and specific heat have been measured…

强关联电子 · 物理学 2015-05-14 S. Guo , D. P. Young , R. T. Macaluso , D. A. Browne , N. L. Henderson , J. Y. Chan , L. L. Henry , J. F. DiTusa

The crystal structure and magnetoresponsive properties of Fe-doped MnCoGe alloys have been investigated using x-ray diffraction (XRD) and magnetic measurements. By alloying the Fe-containing isostructure compounds into MnCoGe, a…

材料科学 · 物理学 2013-02-05 G. J. Li , E. K. Liu , H. G. Zhang , Y. J. Zhang , J. L. Chen , W. H. Wang , H. W. Zhang , G. H. Wu , S. Y. Yu

This paper reports the effect of Fe doping on the structure and room temperature ferromagnetism of CeO2 nanoparticles. X-ray diffraction and selective area electron diffraction measurement reflects that Ce1-xFexO2 (x = 0.0 - 0.07)…

材料科学 · 物理学 2011-01-31 Shalendra Kumar , Geun Woo Kim , B. H. Koo , S. K. Sharma , M. Knobel , Chan Gyu Lee

The structural transitions, magnetic properties, and electronic structures of Co(Fe)-doped MnNiSi compounds are investigated by x-ray powder diffraction (XRD), differential scanning calorimetry (DSC), magnetic measurements, and…

材料科学 · 物理学 2015-04-17 Y. Li , Z. Y. Wei , E. K. Liu , G. D. Liu , S. G. Wang , W. H. Wang , G. H. Wu

The low-temperature behavior of Ce2RuZn4 has been investigated. Specific heat and magnetic susceptibility data reveal an antiferromagnetic transition at a Neel temperature of 2 K. Ce2RuZn4 is a static intermediate-valent compound with two…

强关联电子 · 物理学 2008-12-16 Volker Eyert , Ernst-Wilhelm Scheidt , Wolfgang Scherer , Wilfried Hermes , Rainer Poettgen

Neutron diffraction measurements on a high quality single crystal of CeAu2Ge2 reveal two new magnetic structures that coexist with commensurate long range antiferromagnetic order below the Neel temperature T_N ~ 14 K. The new magnetic…

强关联电子 · 物理学 2012-09-03 D. K. Singh , A. Thamizhavel , J. W. Lynn , S. K. Dhar , T. Hermann

Magnetic MAX phase compounds are important materials for studying the two-dimensional magnetism because of their layered crystallographic structure. The hexagonal MAX phase compound Cr$_2$GeC is a Pauli paramagnet, and here we report the…

强关联电子 · 物理学 2025-04-04 Suman Mondal , Mohamad Numan , Kurt Kummer , Sawada Masahiro , Subham Majumdar
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