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Low-dimensional magnetic materials with spin-$\frac{1}{2}$ moments can host a range of exotic magnetic phenomena due to the intrinsic importance of quantum fluctuations to their behavior. Here, we report the structure, magnetic structure…

Temperature dependence of magnetization curves of well homogenized samples of Ce(Co$_{1-x}$Cu$_{x}$)$_5$ ($0\le x \le 0.7$), a family of representative $4f$-$3d$ intermetallic magnets found in rare-earth permanent magnets, is measured. A…

Strongly Correlated Electrons · Physics 2021-03-19 H. Shishido , T. Ueno , K. Saito , M. Sawada , M. Matsumoto

Due to a ferromagnetic in-chain coupling between Co$^{3+}$ ions at trigonal sites, chains Co$_2$O$_6$ are considered as large rigid spin moments. The antiferromagnetic Ising model on the triangular lattice is applied to describe an…

Strongly Correlated Electrons · Physics 2009-11-11 Yuri B. Kudasov

We report on the basic properties of recently observed magnetic field resonance, induced time dependent oscillation, and hysteresis effects in the current flowing through two weakly coupled vertical quantum dots at high source-drain bias…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 D. G. Austing , C. Payette , G. Yu , J. A. Gupta

The propensity of some materials and multilayers to have a magnetic field dependent resistance, called magnetoresistance, has found commercial applications such as giant magnetoresistance harddisk read heads. But magnetoresistance can also…

Mesoscale and Nanoscale Physics · Physics 2014-12-15 D. P. Leusink , R. G. J. Smits , P. Ngabonziza , X. L. Wang , S. Wiedmann , U. Zeitler , A. Brinkman

Extremely large magnetoresistance is realized in the nonmagnetic layered metal PdCoO2. In spite of a highly conducting metallic behavior with a simple quasi-two-dimensional hexagonal Fermi surface, the interlayer resistance reaches up to…

A study of dynamic and reversible voltage controlled magnetization switching in ferromagnetic Co/Pt thin film with perpendicular magnetic anisotropy at room temperature is presented. The change in the magnetic properties of the system is…

To investigate structure-property correlations, high-coercivity MnxGa nanoparticles were synthesized by the method of sequential deposition of Ga and Mn fluxes using molecular beam epitaxy. Spontaneous nanostructuring was assisted by the…

Materials Science · Physics 2014-02-21 Michelle E. Jamer , Badih A. Assaf , Steven P. Bennett , Laura H. Lewis , Don Heiman

The quantum critical point (QCP) in the archetypical heavy-fermion compound CeCu$_6$ doped by Au is described, accounting for the localized $4f$-electron of Ce, using realistic electronic structure calculations combined with dynamical…

Materials Science · Physics 2020-05-11 Munehisa Matsumoto

The work presents experimental results of precision magnetoresistance dr(H,T) measurements obtained for canonical heavy fermion compounds CeAl2, CeAl3, CeCu6 and substitutional solid solutions CeCu6-xAux (x=0.1 and 0.2) and Ce(Al0.95M0.05)2…

Strongly Correlated Electrons · Physics 2007-05-23 N E Sluchanko , A V Bogach , V V Glushkov , S V Demishev , N A Samarin , G S Burhanov , O D Chistiakov , D N Sluchanko

A trapped field of over 1 T at 5 K and 0.5 T at 20 K has been measured between a stack of magnetized cylinders of bulk polycrystalline Ba0.6K0.4Fe2As2 superconductors 10 mm in diameter and 18 mm in combined thickness. The trapped field…

We study a high-TC superconducting (YBa2Cu3O7-d) / ferromagnetic (Co/Pt multilayer) hybrid which exhibits resistance switching driven by the magnetic history: depending on the direction of the external field, a pronounced decrease or…

We investigate magnetic, thermal, and dielectric properties of SrCuTe2O6, which is isostructural to PbCuTe2O6, a recently found, Cu-based 3D frustrated magnet with a corner sharing triangular spin network having dominant first and second…

Strongly Correlated Electrons · Physics 2016-03-16 B. Koteswararao , S. K. Panda , R. Kumar , Kyongjun Yoo , A. V. Mahajan , I. Dasgupta , B. H. Chen , Kee Hoon Kim , F. C. Chou

The molecular compound [Fe$_{2}$($\mu_{2}$-oxo)(C$_{3}$H$_{4}$N$_{2}$)$_{6}$(C$_{2}$O$_{4}$)$_{2}$] was designed and synthesized for the first time and its structure was determined using single-crystal X-ray diffraction. The magnetic…

Quantum Physics · Physics 2012-12-10 M. S. Reis , S. Soriano , A. M. dos Santos , B. C. Sales , D. O. Soares-Pinto , P. Brandao

We have synthesized Sr$_6$Co$_5$O$_{15}$, a quasi-one-dimensional oxide, measured its magnetic properties and calculated its electronic structure by ab initio techniques. We have found strong evidence for its electronic and magnetic…

Strongly Correlated Electrons · Physics 2011-06-03 A. S. Botana , P. M. Botta , C. de la Calle , A. Piñeiro , V. Pardo , D. Baldomir , J. A. Alonso

By understanding the small easy axis magnetocrystalline anisotropy energy (MAE) of hexagonal Ce2Co17, an attempt has been made to improve anisotropy and consequently to obtain better characteristics for a high energy permanent magnet via…

Materials Science · Physics 2018-05-02 Manish K. Kashyap , Timothy A. Hackett , Ed Moxley , Sarvesh Kumar , D. Paudyal , B. N. Harmon

In this work the magnetization dynamics of clusters supported on non-magnetic substrates is shown to exhibit an unprecedented complex response when subjected to external magnetic fields. The field-driven magnetization reversal of small Co…

Materials Science · Physics 2013-08-13 Corina Etz , Marcio Costa , Olle Eriksson , Anders Bergman

We report the discovery of a new form of inductance in the bulk ferrimagnet Mn3Si2Te6, which features strong spin-orbit coupling, large magnetic anisotropy, and pronounced magnetoelastic interactions. Below its Curie temperature, Mn3Si2Te6…

Recent reports of colossal negative magnetoresistance (CMR) in a few magnetic semimetals and semiconductors have attracted attention, because these materials are devoid of the conventional mechanisms of CMR such as mixed valence, double…

We have demonstrated magnetodielectric (MD) coupling in an Ising-chain magnet Sr2Ca2CoMn2O9, via detailed investigation of ac susceptibility and dielectric constant as a function of temperature, magnetic field and frequency. Sr2Ca2CoMn2O9…

Strongly Correlated Electrons · Physics 2021-07-23 Tathamay Basu , Nahed Sakly , Alain Pautrat , Fabien Veillon , Olivier Perez , Vincent Caignaert , Bernard Raveau , Vincent Hardy
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