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相关论文: Double Magnetic Transition in Pr0.5Sr0.5CoO3

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In the manganite Nd0.5Ca0.5MnO3, charge ordering occurs at much higher temperature than the antiferromagnetic order (TCO=250K,TN=160K). The magnetic behavior of the phase TN<T<TCO is puzzling: its magnetization and susceptibility are…

强关联电子 · 物理学 2016-08-31 F. millange , S. de Brion , G. Chouteau

The magneto-optical technique has been employed to observe spontaneous ferromagnetic domain structures in La0.78Ca0.22MnO3 single crystals. The magnetic domain topology was found to be correlated with the intrinsic twin structure of the…

In this paper, the magnetic and transport properties were systematically studied for EuAg$_4$As$_2$ single crystals, crystallizing in a centrosymmetric trigonal CaCu$_4$P$_2$ type structure. It was confirmed that two magnetic transitions…

材料科学 · 物理学 2022-06-24 Qinqing Zhu , Liang Li , Zhihua Yang , Zhefeng Lou , Jianhua Du , Jinhu Yang , Bin Chen , Hangdong Wang , Minghu Fang

Systematic measurements pertinent to the magnetocaloric effect and nature of magnetic transition around the transition temperature are performed in the 10 nm Pr0.5Ca0.5MnO3 nanoparticles (PCMO10) . Maxwell relation is employed to estimate…

介观与纳米尺度物理 · 物理学 2015-06-11 S. Narayana Jammalamadaka , S. S. Rao , S. V. Bhat , J. Vanacken , V. V. Moshchalkov

We study the effects of 10% Cr substitution in Mn sites of Bi0.5Sr0.5MnO3 on the antiferromagnetic (AFM) (TN ~ 110 K) transition using structural, magnetic and electron paramagnetic resonance (EPR) techniques. Field cooled (FC) and zero…

强关联电子 · 物理学 2019-03-19 Bhagyashree K. S. , Lora Rita Goveas , S. V. Bhat

We report ferromagnetic ordering at $T_\mathrm {C}=1.3\,$K in the quasi-two dimensional magnet EuAl$_{12}$O$_{19}$ with large spins $S=7/2$. This ferromagnetic state was characterized by magnetization and specific heat measurements and the…

强关联电子 · 物理学 2024-10-10 G. Bastien , Q. Courtade , A. Eliáš , T. Haidamak , P. Proschek , M. Dušek , J. Priessnitz , P. Baláž , R. H. Colman

Nuclear quadrupole resonance (NQR) measurements were performed on the heavy fermion superconductor Ce3PtIn11 with Tc = 0.32 K. The temperature dependence of both spin-lattice relaxation rate 1/T1 and NQR spectra evidences the occurrence of…

强关联电子 · 物理学 2020-10-19 H. Fukazawa , K. Kumeda , N. Shioda , YS Lee , Y. Kohori , K. Sugimoto , D. Das , J. Blawat , D. Kaczorowski

Here we report the magnetic and heat capacity studies of the double perovskite com-pounds Ba2SmRuO6 and Ba2DyRuO6. Antiferromagnetic transitions are inferred at 54 K and 47 K in Ba2SmRuO6 and Ba2DyRuO6, respectively in the magnetization…

材料科学 · 物理学 2007-07-10 Rakesh Kumar , C. V. Tomy , R. Nagarajan , P. L. Paulose , S. K. Malik

The charge and orbital ordering in Pr_{0.5} Ca_{0.5} MnO_3 is studied for the first time by ^{17}O NMR. This local probe is sensitive to spin, charge and orbital correlations. Two transitions exist in this system: the charge and orbital…

强关联电子 · 物理学 2009-11-07 A. Yakubovskii , A. Trokiner , S. Verkhovskii , A. Gerashenko , D. Khomskii

Ab initio calculations show an antiferromagnetic-ferromagnetic phase transition around 9-10 GPa and a magnetic anomaly at 12 GPa in BiFeO3. The magnetic phase transition also involves a structural and insulator-metal transition. The G-type…

材料科学 · 物理学 2012-12-20 Hong-Jian Feng

The compound, Nd7Rh3, crystallizing in Th7Fe3-type hexagonal structure, has been shown recently by us to exhibit a signature of magnetic phase-coexistence phenomenon below 10 K after a field cycling, uncharacteristic of stoichiometric…

强关联电子 · 物理学 2009-11-11 Kausik Sengupta , E. V. Sampathkumaran

The temperature evolution of the crystal and magnetic structures of ferroelectric sulfide AgCrS2 have been investigated by means of neutron scattering. AgCrS2 undergoes at TN = 41.6 K a first-order phase transition, from a paramagnetic…

Electrical resistivity \rho(T) of the 5f ferromagnet UGa2 was investigated for single-crystal samples as a function of pressure and magnetic field. The Curie temperature monotonously increases from T$_{C}$ = 124 K under quasi-hydrostatic…

强关联电子 · 物理学 2015-02-18 A. V. Kolomiets , J. -C. Griveau , J. Prchal , A. V. Andreev , L. Havela

The perovskite TbFe$_{0.5}$Cr$_{0.5}$O$_3$ shows two anomalies in the magnetic susceptibility at $T_N$ = 257K and $T_{SR}$ = 190K which are respectively, the antiferromagnetic and spin reorientation transition that occur in the Fe/Cr…

We prospect magneto-dielectricity in $La_{0.53}Ca_{0.47}MnO_{3}$ across its paramagnetic (PMI) to ferromagnetic (FMM) isostructural transition at $T_{C} \sim 253K$, by magnetic ($(M)$), caloric ($(W)$), dielectric ($(\epsilon')$),…

材料科学 · 物理学 2017-07-26 Suchita Pandey , Jitender Kumar , A. M. Awasthi

A thermodynamic and transport study of Sr4Ru3O10 as a function of temperature and magnetic field is presented. The central results include a growing specific heat C with increasing field B, a magnetic contribution to C/T at low temperatures…

强关联电子 · 物理学 2009-11-13 G. Cao , S. Chikara , J. W. Brill , Schlottmann

We present the results of susceptibility \chi(T) and magnetisation M(H) measurements performed on single crystal samples of the rare-earth oxides SrLn2O4 (Ln = Er, Dy and Ho). The measurements reveal the presence of magnetic ordering…

强关联电子 · 物理学 2012-01-17 Thomas J. Hayes , Olga Young , Geetha Balakrishnan , Oleg A. Petrenko

The inference of Ying et al. [EPL 104, 67005 (2013)] of a composition-induced change from c-axis ordered-moment alignment in a collinear A-type antiferromagnetic (AFM) structure (AFMI) at small x to ab-plane alignment in an unknown AFM…

强关联电子 · 物理学 2017-12-22 N. S. Sangeetha , V. Smetana , A. -V. Mudring , D. C. Johnston

Neutron-diffraction measurements in LaCrSb{3} show a coexistence of ferromagnetic and antiferromagnetic sublattices below Tc=126 K, with ordered moments of 1.65(4) and 0.49(4) Bohr magnetons per formula unit, respectively (T=10 K), and a…

Thermoelectric power measurements on the heavy fermion antiferromagnet Ce(Ru0.92Rh0.08)2Si2 under magnetic field (H) show clearly that the antiferromagnetic state below the critical field Hc ~ 2.8T can be fully decoupled from the…

强关联电子 · 物理学 2014-02-25 Yo Machida , Koichi Izawa , Dai Aoki , Georg Knebel , Alexandre Pourret , Jacques Flouquet