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Related papers: Mastering hysteresis in magnetocaloric materials

200 papers

We have investigated magnetization(M), magnetocaloric effect(MCE) and magnetothermopower(MTEP) in polycrystalline Pr0.6Sr0.4MnO3, which shows a second-order paramagnetic to ferromagnetic transition near room temperature (TC = 305 K).…

Strongly Correlated Electrons · Physics 2012-10-19 D. V. Maheshwar Repaka , T. S. Tripathi , M. Aparnadevi , R. Mahendiran

With a surge of interest in spintronics, the manipulation and detection of colossal magnetoresistance in quasi-two-dimensional layered magnetic materials have become a key focus, driven by their relatively scarce occurrence compared to…

Materials Science · Physics 2025-02-27 Suman Kalyan Pradhan , Weiqi Liu , Jicheng Wang , Yongli Yu , Wenxing Chen , Jinbo Yang , Yanglong Hou , Rui Wu

Heusler alloys exhibiting magnetic and martensitic transitions enable applications like magnetocaloric refrigeration and actuation based on the magnetic shape memory effect. Their outstanding functional properties depend on low hysteresis…

Frustrated lattices1-3, characterized by minor breakdown in local order in an otherwise periodic lattice, lead to simultaneous possibilities of several ground states which can trigger unique physical properties, in condensed matter systems.…

Mesoscale and Nanoscale Physics · Physics 2014-04-07 Satyendra Prakash Pal , P. Sen

In order to understand the physical hysteresis loops clearly, we constructed a novel model, which is combined with the electric field, the temperature, and the stress as one synthetically parameter. This model revealed the shape of…

Materials Science · Physics 2017-07-31 Zhi Ma , Yanan Ma , Fu Zheng , Hua Gao , Hongfei Liu , Huanming Chen

The expression of temperature distribution along a film thickness is derived and distribution of temperature in the film as the substrate is heated is shown. The variation of film resistance with different substrate temperature is…

Materials Science · Physics 2009-11-10 P. Arun , A. G. Vedeshwar

We study the impact of thermal hysteresis at the first-order structural/ferroelectric phase transitions on the electrocaloric response in bulk BaTiO$_3$ by performing molecular dynamics simulations for a first-principles-based effective…

Materials Science · Physics 2018-03-14 Madhura Marathe , Claude Ederer , Anna Grünebohm

We study the influence of surface anisotropy on the zero-temperature hysteretic properties of a small single-domain magnetic particle, and give an estimation of the anisotropy constant for which deviations from the Stoner-Wohlfarth model…

Statistical Mechanics · Physics 2009-11-07 H. Kachkachi , M. Dimian

Understanding the physics of phase transitions in two-dimensional (2D) systems underpins the research in diverse fields including statistical mechanics, quantum systems, nanomagnetism, and soft condensed matter. However, many fundamental…

This paper presents the hidden magnetization features of ferromagnetic materials: called miamagnetism. As we know, we have several forms of magnetization: the diamagnetism, the paramagnetism, the ferromagnetism etc. The main character of…

We investigate the magnetic hysteresis of a superconducting microstrip resonator with a high edge barrier. We measure the magnetic hysteresis while either sweeping a magnetic field or tuning the edge barrier by high microwave current. We…

Superconductivity · Physics 2018-12-11 Sangil Kwon , Yong-Chao Tang , Hamid R. Mohebbi , David G. Cory , Guo-Xing Miao

The phase transformation kinetics of LaFe$_{11.41}$Mn$_{0.30}$Si$_{1.29}$-H$_{1.65}$ magnetocaloric compound is addressed by low rate calorimetry experiments. Scans at 1 mK/s show that its first order phase transitions are made by multiple…

Materials Science · Physics 2016-12-21 C. Bennati , L. Gozzelino , E. S. Olivetti , V. Basso

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

The mixed-valent multiferroic compound CaMn7O12 is studied for its magnetic and electric properties. The compound undergoes magnetic ordering below 90 K with a helimagnetic structure followed by a low temperature magnetic anomaly observed…

Strongly Correlated Electrons · Physics 2013-07-23 J. Sannigrahi , S. Chattopadhyay , D. Dutta , S. Giri , S. Majumdar

We present the investigation on the modifications of structural and magnetic properties of MnAs thin film epitaxially grown on GaAs induced by slow highly charged ions bombardment under well-controlled conditions. The ion-induced defects…

Multiphase magnetic systems are common in nature and are increasingly being recognized in technical applications. One characterization method which has shown great promise for determining separate and collective effects of multiphase…

Materials Science · Physics 2018-02-14 Yue Cao , Mostafa Ahmadzadeh , Ke Xu , Brad Dodrill , John S. McCloy

The low-temperature thermal conductivity $\kappa$ of the spin-ice compound Dy$_2$Ti$_2$O$_7$ shows pronounced hysteresis as a function of magnetic field. Here, we investigate how these hysteresis effects depend on temperature, the…

Strongly Correlated Electrons · Physics 2014-06-30 Simon Scharffe , Gerhard Kolland , Martin Hiertz , Martin Valldor , Thomas Lorenz

Compositionally complex materials (CCMs) present a potential paradigm shift in the design of magnetic materials. These alloys exhibit long-range structural order coupled with limited or no chemical order. As a result, extreme local…

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…

Strongly Correlated Electrons · Physics 2007-05-23 L. S. Sharath Chandra , Kaustav Mukherjee , V. Ganesan , A. Banerjee , P. Chaddah , M. K. Chattopadhyay , S. B. Roy

Manganese-rich Heusler compounds are attracting much interest in the context of spin transfer torque and rare-earth free hard magnets. Here we give a comprehensive overview of the magnetic properties of non-centrosymmetric cubic…

Materials Science · Physics 2014-12-10 Lukas Wollmann , Stanislav Chadov , Jürgen Kübler , Claudia Felser