Special Issue "Magnetic Field-induced Phase Transition"

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Crystalline Materials".

Deadline for manuscript submissions: 31 July 2019.

Special Issue Editor

Guest Editor
Prof. Dr. Yasuhiro H. Matsuda

Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba, Japan
Website | E-Mail
Interests: Strong magnetic field; Qauntum spin systems; Kondo metals; Valence fluctuation; X-ray dffraction and spectroscopy; Molecular solids

Special Issue Information

Dear Colleagues,

Magnetic field is a special electrical field produced by the relativistic effect between two moving charged particles. It is a weak field compared to a direct electric field and thus generally only has little influence on material properties:In another words, most of the substances in the world are stable thanks to the fact that there is no strong magnetic field on the earth. (This is not the case in other places in cosmic space.)

Some scientists have been interested in the generation of artificial strong magnetic fields and their application to research into condensed matter physics. This is because a variety of fascinating phenomena such as the quantum Hall effect and various kinds of quantum phase transitions have been discovered in strong magnetic fields. The potential properties of matter that are hidden in normal conditions can appear in strong magnetic fields as a result of “Magnetic Field-Induced Phase Transitions”.

We invite researchers who employ strong magnetic fields to control material phases to submit papers. The potential topics include (1) Quantum spin systems, (2) Frustrated magnets, (3) Transition metal oxides, (4) Multiferroic materials, (5) Rare-earth intermetallic compounds, and (6) Molecular solids. Also, since recent progress in the techniques for the measurement of material properties in strong magnetic fields is significant, research is also welcome on (7) Development of measurement techniques to probe field-induced phase transitions.

Prof. Dr. Yasuhiro H. Matsuda
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 papers will be 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. Crystals 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 1400 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

  • Quantum spin systems
  • Frustrated magnets
  • Transition metal oxides
  • Multiferroic materials
  • Rare-earth intermetallic compounds
  • Molecular solids
  • Measurement techniques in strong fields

Published Papers (2 papers)

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Research

Open AccessArticle
Field-Independent Features in the Magnetization and Specific Heat of Sm3Co4Ge13
Crystals 2019, 9(6), 322; https://doi.org/10.3390/cryst9060322
Received: 2 May 2019 / Revised: 7 June 2019 / Accepted: 10 June 2019 / Published: 25 June 2019
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Abstract
The cubic intermetallic compound Sm3Co4Ge13 (space group Pm3¯n) possesses a cage-like structure composed of Ge and displays an antiferromagnetic transition at TN 6 K in magnetization, M(T), [...] Read more.
The cubic intermetallic compound Sm 3Co 4Ge 13 (space group P m 3 ¯ n ) possesses a cage-like structure composed of Ge and displays an antiferromagnetic transition at T N 6 K in magnetization, M ( T ) , specific heat, C p ( T ) and in thermal conductivity, κ ( T ). The magnetic transition at T N is observed to be robust against applied magnetic fields up to 9 T. From the analysis of specific heat, a Sommerfeld coefficient γ = 80(2) mJ/mol-Sm K 2 is estimated. The magnetic entropy released at T N is estimated as lower than that of a doublet, R ln(2). A positive Seebeck coefficient is observed for the thermopower, S ( T ) . Photoemission spectroscopy reveals distinct electronic character of the near-E F valence band states arising out of Co( 3 d)-Sm( 4 f) hybridization and Sm( 4 f) electron correlation. The unusual field-independent features in magnetization, specific heat and electrical transport is an indication of the significant correlation between f and d wave functions. Full article
(This article belongs to the Special Issue Magnetic Field-induced Phase Transition)
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Open AccessArticle
Identification of Unentangled–Entangled Border in the Luttinger Liquid Phase
Crystals 2019, 9(2), 105; https://doi.org/10.3390/cryst9020105
Received: 8 January 2019 / Revised: 6 February 2019 / Accepted: 14 February 2019 / Published: 18 February 2019
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Abstract
Quantum discord and entanglement are both criteria for distinguishing quantum correlations in a quantum system. We studied the effect of the transverse magnetic field on the quantum discord of the one-dimensional spin-1/2 XX model. This study focused on the pair of spins at [...] Read more.
Quantum discord and entanglement are both criteria for distinguishing quantum correlations in a quantum system. We studied the effect of the transverse magnetic field on the quantum discord of the one-dimensional spin-1/2 XX model. This study focused on the pair of spins at different distances. We show that quantum discord is finite for all studied spin pairs in the Luttinger liquid phase. In addition, relying on our calculations, we show that the derivatives of quantum discord can be used to identify the border between entangled and separable regions in the Luttinger liquid phase. Full article
(This article belongs to the Special Issue Magnetic Field-induced Phase Transition)
Figures

Figure 1

Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Optimized nematic liquid crystal structures in new autostereoscopic applications

Author: Vasily Ezhov

Abstrsct: The optimized NLC structures are considered to be used in new autostereoscopic applications using the amplitude-polarization imager  and static phase-polarization parallax barriers based on 90-degree twist and homogeneous  pi-structures accordingly, the fast amplitude imagers with dynamic amplitude parallax barriers  based on two antiphase pi-structures, the distance binocular filter based on 270-degree twist structure (flat or curved). The results of computer modeling of the contrast, optical efficiency and achromatic characteristics of the relevant NLC strutures are presented. The experimental  results  of operation of the NLC structures in the modes required for the implementation of the corresponding autostereoscopic imaging functions are described.

Key words: liquid crystal, NLC, autostereoscopic imaging, glasses-free imaging, naked-eye imaging, parallax barrier, binocular filter

 

Title: Frustrated nematic phases

Authors: S. M. Giampaolo and F. Franchini

Abstrsct: In this paper we summarize the main findings about the nematic phases of spin systems with cluster interactions. Furthermore, based on some important results on frustrated systems, we analyze the effects of various boundary conditions on the nematic phase

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