Multiferroic Materials 2021

A special issue of Magnetochemistry (ISSN 2312-7481). This special issue belongs to the section "Magnetic Materials".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 6481
Related Special Issue: Multiferroic Materials 2021

Special Issue Editor

Experimental Mechanics Laboratory, Mechanical Engineering Department, San Diego State University, San Diego, CA 92182, USA
Interests: impact mitigation; elastomeric foams; mechanics of polymers; fuse filament fabrication; stereolithography; experimental mechanics; composite materials; smart materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent years, research in multiferroic materials has resulted in significant advances and translational applications by elucidating the fundamental underpinnings of coupling using analytical, computational, and experimental approaches. Multiferroic materials may exhibit intrinsic or extrinsic coupling between strain, electrical, and magnetic energies due to complex interactions between different ferroic-order parameters. Nonetheless, new advances continue to be reported in the synthesis, characterization, modeling, optimization, and reliability of multiferroic materials and devices based on these materials. The excitement about multiferroic materials continues to invigorate basic and applied research.

This Special Issue of Magnetochemistry, entitled "Multiferroic Materials”, seeks to attract a trans-disciplinary readership by covering the recent progress in:

  • multiscale modeling and simulation;
  • multiscale fabrication and characterization;
  • synthesis of novel intrinsic and composite materials;
  • novel sensing, actuation, and communication devices;
  • new coupling mechanisms, including electric, magnetic, mechanical, optical, and thermal;
  • in situ, multi-field characterization; and
  • coupling and switching dynamics.

You may choose our Joint Special Issue in Applied Sciences.

Dr. George Youssef
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Magnetochemistry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • multiferroic spin-transfer torque junctions
  • multiferroic charge-transfer materials
  • multiferroic strain-mediation materials
  • intrinsic multiferroic materials
  • composite multiferroic materials
  • multiscale modeling (ab initio, molecular dynamic, micromagentics, finite element, effective media, etc.)
  • converse- and direct-coupling paradigms
  • multiscale characterization
  • reliability and assessment of multiferroic-based devices
  • applications: sensing, actuation, communication, energy harvesting, wireless energy transfer, etc.

Published Papers (3 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

19 pages, 6098 KiB  
Article
Pressure–Temperature Phase Diagram of Multiferroic TbFe2.46Ga0.54(BO3)4
by Alexander Krylov, Svetlana Krylova, Irina Gudim, Yuri Kitaev, Elena Golovkina, Haibo Zhang and Alexander Vtyurin
Magnetochemistry 2022, 8(6), 59; https://0-doi-org.brum.beds.ac.uk/10.3390/magnetochemistry8060059 - 01 Jun 2022
Cited by 1 | Viewed by 1374
Abstract
The pressure–temperature phase diagram of the multiferroic TbFe2.46Ga0.54(BO3)4 was studied for hydrostatic pressures up to 7 GPa and simultaneously with temperatures up to 400 K by the Raman spectroscopy technique. The structural phase transition from the [...] Read more.
The pressure–temperature phase diagram of the multiferroic TbFe2.46Ga0.54(BO3)4 was studied for hydrostatic pressures up to 7 GPa and simultaneously with temperatures up to 400 K by the Raman spectroscopy technique. The structural phase transition from the R32 phase to the P3121 phase was determined by observing the condensation of soft modes and the appearance of new lines. An increase in pressure leads to an increase in the temperature of the structural phase transition. These phases are stable over the entire investigated temperature and pressure range. No other phases have been found. Full article
(This article belongs to the Special Issue Multiferroic Materials 2021)
Show Figures

Figure 1

7 pages, 1065 KiB  
Communication
Solid-State Heating Using the Multicaloric Effect in Multiferroics
by Melvin M. Vopson, Yuri K. Fetisov and Ian Hepburn
Magnetochemistry 2021, 7(12), 154; https://0-doi-org.brum.beds.ac.uk/10.3390/magnetochemistry7120154 - 24 Nov 2021
Cited by 2 | Viewed by 2515
Abstract
The multicaloric effect is defined as the adiabatic reversible temperature change in multiferroic materials induced by the application of an external electric or magnetic field, and it was first theoretically proposed in 2012. The multicaloric effects in multiferroics, as well as other similar [...] Read more.
The multicaloric effect is defined as the adiabatic reversible temperature change in multiferroic materials induced by the application of an external electric or magnetic field, and it was first theoretically proposed in 2012. The multicaloric effects in multiferroics, as well as other similar caloric effects in single ferroics, such as magnetocaloric, elastocaloric, barocaloric, and electrocaloric, have been the focus of much research due to their potential commercialization in solid-state refrigeration. In this short communication article, we examine the thermodynamics of the multicaloric effect for solid-state heating applications. A possible thermodynamic multicaloric heating cycle is proposed and then implemented to estimate the solid-state heating effect for a known electrocaloric system. This work offers a path to implementing caloric and multicaloric effects to efficient heating systems, and we offer a theoretical estimate of the upper limit of the temperature change achievable in a multicaloric cooling or heating effect. Full article
(This article belongs to the Special Issue Multiferroic Materials 2021)
Show Figures

Figure 1

13 pages, 3292 KiB  
Article
Long-Term Converse Magnetoelectric Response of Actuated 1-3 Multiferroic Composite Structures
by Ryan Stampfli, Nha Uyen Huynh and George Youssef
Magnetochemistry 2021, 7(4), 55; https://0-doi-org.brum.beds.ac.uk/10.3390/magnetochemistry7040055 - 20 Apr 2021
Cited by 4 | Viewed by 1610
Abstract
Multiferroic composite materials operating under the principle of strain mediation across the interfaces separating different material boundaries address many limitations of single-phase magnetoelectric materials. Although significant research has been conducted to explore their responses relating to the topography and directionality of material polarization [...] Read more.
Multiferroic composite materials operating under the principle of strain mediation across the interfaces separating different material boundaries address many limitations of single-phase magnetoelectric materials. Although significant research has been conducted to explore their responses relating to the topography and directionality of material polarization and magnetic loading, there remain unanswered questions regarding the long-term performance of these multiferroic structures. In this study, a multiferroic composite structure consisting of an inner Terfenol-D magnetostrictive cylinder and an outer lead zirconate titanate (PZT) piezoelectric cylinder was investigated. The composite was loaded over a 45-day period with an AC electric field (20 kV/m) at a near-resonant frequency (32.5 kHz) and a simultaneously applied DC magnetic field of 500 Oe. The long-term magnetoelectric and thermal responses were continuously monitored, and an extensive micrographic analysis of pretest and post-test states was performed using scanning electron microscopy (SEM). The extended characterization revealed a significant degradation of ≈30–50% of the magnetoelectric response, whereas SEM micrographs indicated a reduction in the bonding interface quality. The increase in temperature at the onset of loading was associated with the induced oscillatory piezoelectric strain and accounted for 28% of the strain energy loss over nearly one hour. Full article
(This article belongs to the Special Issue Multiferroic Materials 2021)
Show Figures

Figure 1

Back to TopTop