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Heusler alloy Fe2CrAl exhibits a ferromagnetic behaviour below Curie temperature (TC) ~ 202 K along with presence of cluster glass (CG) phase near freezing temperature (Tf) ~ 3.9 K and Griffiths phase (GP) above 300 K. The physical…

材料科学 · 物理学 2021-10-22 Kavita Yadav , K. Mukherjee

We studied the magnetic properties of bulk LaCrO3; a GdFeO3-type distorted perovskite, with a predominant antiferromagnetic phase transition at ~ 290 K. The bulk LaCrO3 exhibits intrinsic weak ferromagnetism at room temperature, which may…

强关联电子 · 物理学 2014-03-18 Brajesh Tiwari , A. Dixit , R Naik , G. Lawes , M. S. Ramachandra Rao

Magnetic 2D materials hold promise to change the miniaturization paradigm of unidirectional photonic components. However, the integration of these materials in devices hinges on the accurate determination of the optical properties down to…

A complex magnetic order of the multiferroic compound Co3TeO6 has been revealed by neutron powder diffraction studies on ceramics and crushed single crystals. The compound adopts a monoclinic structure (s.g. C2/c) in the studied temperature…

The successful synthesis of few-layer CrI3 has opened new avenues for research in two-dimensional magnetic materials. Owing to its simple crystal structure and excellent physical properties, layered CrI3 has been extensively studied in…

材料科学 · 物理学 2026-01-09 Xianzhe Zhu , Pu Liu , Wence Ding , Benhu Zhou , Xiaoying Zhou , Guanghui Zhou

Co/BaTiO$_3$(001) is one of the most interesting multiferroic heterostructures as it combines different ferroic phases, setting this way the fundamentals for innovative technical applications. Various theoretical approaches have been…

材料科学 · 物理学 2016-09-21 St. Borek , J. Braun , J. Minar , D. Kutnyakhov , H. -J. Elmers , G. Schönhense , H. Ebert

The origin of room temperature (RT) ferromagneticlike behavior in ZnO-based diluted magnetic semiconductors is still an unclear topic. The present work concentrates on the appearance of RT magnetic moments in just mixed ZnO/Co3O4 mixtures…

We report direct imaging of boundary magnetization associated with antiferromagnetic domains in magnetoelectric epitaxial Cr2O3 thin films using diamond nitrogen vacancy microscopy. We found a correlation between magnetic domain size and…

The electronic structure of CrO_2 is critically discussed in terms of the relation of existing experimental data and well converged LSDA and GGA calculations of the electronic structure and transport properties of this half metal magnet,…

材料科学 · 物理学 2009-10-31 I. I. Mazin , D. J. Singh , Claudia Ambrosch-Draxl

In-plane temperature dependent dielectric behavior of BiFeO3 (BFO) as-grown thin films show diffuse but prominent phase transitions near 450 (+/-10) K and 550 K with dielectric loss temperature dependences that suggest skin layer effects.…

材料科学 · 物理学 2015-06-04 Ashok Kumar , J. F. Scott , R. Martinez , G. Srinivasan , R. S. Katiyar

We present a theoretical examination of the magneto-electric response in the recently discovered multiferroic insulator Cu$_2$OSeO$_3$. Combining Monte Carlo simulation and Ginzburg-Landau analysis we predict the response in each of the…

强关联电子 · 物理学 2013-10-22 Ye-Hua Liu , Jung Hoon Han , A. A. Omrani , H. M. Rønnow , You-Quan Li

Layered transition-metal compounds with controllable magnetic behaviors provide many fascinating opportunities for the fabrication of high-performance magneto-electric and spintronic devices. The tuning of their electronic and magnetic…

Two-dimensional (2D) magnets have broad application prospects in the spintronics, but how to effectively control them with a small electric field is still an issue. Here we propose that 2D magnets can be efficiently controlled in a…

介观与纳米尺度物理 · 物理学 2022-02-01 Ping Li , Xue-Song Zhou , Zhi-Xin Guo

We report the synthesis and properties of two new insulating phases of SrFeO3-d with introduction of oxygen deficiencies in metallic SrFeO3 ; one with 0.15 < d < 0.19 (sample A)and the other above d = 0.19 (sample B). Sample A shows large…

材料科学 · 物理学 2009-11-11 S. Srinath , M. Mahesh Kumar , M. L. Post , H. Srikanth

In this paper, a theoretical journey from electronic to magneto-caloric effect has been shown through the magnetic properties of aluminium induced yttrium chromate. The ground state electronic band structure and density of states have been…

材料科学 · 物理学 2021-09-21 Tushar Kanti Bhowmik , Tripurari Prasad Sinha

Motivated by the discovery of multiferroicity in the geometrically frustrated triangular antiferromagnet CuCrO$_2$ below its N\'eel temperature $T_N$, we investigate its magnetic and ferroelectric properties using ab initio calculations and…

材料科学 · 物理学 2017-10-23 Ahmed Albaalbaky , Yaroslav Kvashnin , Denis Ledue , Renaud Patte , Raymond Frésard

We use a combination of density functional theory and Monte Carlo calculations to calculate the surface magnetization in magnetoelectric $\mathrm{Cr_2O_3}$ at finite temperatures. Such antiferromagnets, lacking both inversion and…

材料科学 · 物理学 2023-04-19 Sophie F. Weber , Nicola A. Spaldin

Two-dimensional (2D) chromium telluride Cr2Te3 exhibits strong ferromagnetic ordering with high coercivity at low temperatures and paramagnetic behaviour when approaching room temperature. The spin states of monolayer Cr2Te3 show…

We have grown epitaxial thin-films of the orthorhombic phase of YMnO3 oxide on Nb:SrTiO3(001) substrates and their structure, magnetic and dielectric response have been measured. We have found that a substrate-induced strain produces an…

强关联电子 · 物理学 2007-05-23 X. Marti , V. Skumryev , V. Laukhin , F. Sanchez , M. V. Garcia-Cuenca , C. Ferrater , M. Varela , J. Fontcuberta

SrTiO3 plays a central role in oxide electronics. It is the substrate of choice for functional oxide heterostructures based on perovskite-structure thin-film stacks, and its surface or interface with a polar oxide such as LaAlO3 can become…

材料科学 · 物理学 2016-10-12 J. M. D. Coey , M Venkatesan , P Stamenov