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Recently, it has been shown that two dimensional frustrated mixed-spin systems with anisotropic exchange interactions display supersolid phases in their ground state phase diagrams even in the absence of long-range interactions. In this…

Applied Physics · Physics 2020-02-19 F. Heydarinasab , J. Abouie

The magneto-electrocaloric effect which can be defined as the coupling between magnetocaloric and electrocaloric effects attracts currently considerable attention due to the advantages provided by the caloric effect in designing solid-state…

We explored the Fe rich side of the (Mn,Fe)2(P,Ge) magnetocaloric system. The transition temperature of this system is extremely easy to tune with careful manipulation of Fe and Ge content as well as stoichiometrical proportions, which…

Materials Science · Physics 2013-03-25 J. V. Leitao , M. van der Haar , A. Lefering , E. Bruck

GdFe3(BO3)4 exhibits a structural phase transition at 156 K, antiferromagnetic order of the Fe3+ moments at 36 K followed by a spin reorientation phase transition at 9 K. The reorientation phase transition is studied through dielectric,…

Strongly Correlated Electrons · Physics 2009-11-11 F. Yen , B. Lorenz , Y. Y. Sun , C. W. Chu , L. N. Bezmaternykh , A. N. Vasiliev

Magnetic refrigeration exploits the magnetocaloric effect which is the entropy change upon application and removal of magnetic fields in materials, providing an alternate path for refrigeration other than the conventional gas cycles. While…

We present a comprehensive study of the magnetocaloric effect (MCE) in a family of kagome magnets with formula RMn6Sn6 (R=Tb, Ho, Er, and Lu). These materials have a small rare-earth content and tunable magnetic ordering, hence they provide…

Materials Science · Physics 2024-04-24 Kyle Fruhling , Xiaohan Yao , Alenna Streeter , Fazel Tafti

Caloric responses (temperature changes) can be induced in solid-state materials by applying external stimuli such as stress, pressure, and electric and magnetic fields. The magnetic-field-stimulated response is called the magnetocaloric…

We report a systematic investigation of dc magnetization and ac susceptibility, as well as anisotropic magnetocaloric effect in bulk CrI$_3$ single crystals. A second-stage magnetic transition was observed just below the Curie temperature…

Strongly Correlated Electrons · Physics 2018-05-22 Yu Liu , C. Petrovic

We employ an effective-field theory with correlations in order to study a magnetocaloric effect on a triangular Ising antiferromagnet, which is selectively diluted by non-magnetic impurities on one of the three sublattices. Such a dilution…

Statistical Mechanics · Physics 2023-07-19 Michal Borovský , Milan Žukovič

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…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 S. Narayana Jammalamadaka , S. S. Rao , S. V. Bhat , J. Vanacken , V. V. Moshchalkov

Besides being a fascinating class of new materials, magnetic molecules provide the opportunity to study concepts of condensed matter physics in zero dimensions. This contribution will exemplify the impact of molecular magnetism on concepts…

Materials Science · Physics 2018-05-09 J. Schnack

The magnetothermodynamics of strongly frustrated classical Heisenberg antiferromagnets on kagome, garnet, and pyrochlore lattices is examined. The field induced adiabatic temperature change (dT/dH)_S is significantly larger for such systems…

Strongly Correlated Electrons · Physics 2007-05-23 M. E. Zhitomirsky

The magnetocaloric effect of polycrystalline samples of pure and Y-doped dipolar spin ice Dy2Ti2O7 was investigated at temperatures from nominally 0.3 K to 6 K and in magnetic fields of up to 2 T. As well as being of intrinsic interest, it…

Soft Condensed Matter · Physics 2015-06-25 M. Orendac , J. Hanko , E. Cizmar , A. Orendacova , M. Shirai , S. T. Bramwell

The magneto-crystalline anisotropy (MCA) of (Ga,Mn)As films has been studied on the basis of ab-initio electronic structure theory by performing magnetic torque calculations. An appreciable contribution to the in-plane uniaxial anisotropy…

Materials Science · Physics 2015-05-30 S. Mankovsky , S. Polesya , S. Bornemann , J. Minár , F. Hoffmann , C. H. Back , H. Ebert

Strong magnetic field pulses associated with a relativistic electron bunch can imprint switching patterns in magnetic thin films that have uniaxial in-plane anisotropy. In experiments with Fe and FeCo alloy films the pattern shape reveals…

Mesoscale and Nanoscale Physics · Physics 2017-02-24 Ioan Tudosa

The conductance of a ferromagnetic particle depends on the relative orientation of the magnetization with respect to the direction of current flow. This phenomenon is known as "anisotropic magnetoresistance". Quantum interference leads to…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Shaffique Adam , Markus Kindermann , Saar Rahav , Piet W. Brouwer

We consider a cylindrical metallic magnet that is set into rotation about a horizontal axis by a falling mass. In such a system the magnetic field will cause a radial current which is non-solenoidal. This leads to charge accumulation and a…

Classical Physics · Physics 2011-08-08 H. S. Mani , Praveen Pathak , Vijay A. Singh

Low-temperature MnBi (hexagonal NiAs phase) exhibits anomalies in the lattice constants (a, c) and bulk elastic modulus (B) below 100 K, spin reorientation and magnetic susceptibility maximum near 90 K, and, importantly for high-temperature…

Materials Science · Physics 2017-11-28 N. A. Zarkevich , L. -L. Wang , D. D. Johnson

We report anisotropic magnetocaloric effect and critical behavior in quasi-one-dimensional ferromagnetic CrSbSe$_3$ single crystal. The maximum magnetic entropy change $-\Delta S_M^{max}$ is 2.16 J kg$^{-1}$ K$^{-1}$ for easy $a$ axis (2.03…

Strongly Correlated Electrons · Physics 2020-07-20 Yu Liu , Zhixiang Hu , C. Petrovic

Magnetic and magnetocaloric properties of polycrystalline samples of Gd1-xSmxMn2Ge2 have been studied. All the compounds except GdMn2Ge2 show re-entrant ferromagnetic behavior. Multiple magnetic transitions observed in these compounds are…

Materials Science · Physics 2009-11-13 Pramod Kumar , Niraj K. Singh , K. G. Suresh , A. K. Nigam , S. K. Malik
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