Nonvolatile Magneto-Thermal Switching in MgB2

被引：3

作者：

Arima, Hiroto ^{[1
]}

Mizuguchi, Yoshikazu ^{[1
]}

机构：

[1] Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo 1920397, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2023年 / 92卷 / 10期

关键词：

FLUX-PINNING PROPERTIES; TRANSPORT-PROPERTIES; GRAIN-BOUNDARIES; CONDUCTIVITY; FLOW; HEAT;

D O I：

10.7566/JPSJ.92.103702

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ongoing research explores thermal switching materials to control heat flow. Specifically, there has been interest in magneto-thermal switching (MTS) materials based on superconductors, which only exhibited switching behavior when a magnetic field was applied. However, a recent report highlighted nonvolatile MTS in commercial Sn-Pb solders that was attributed to magnetic flux trapping. In this study, we focused on flux trapping in a type-II superconductor, MgB2. Magnetization and thermal conductivity measurements under magnetic fields were conducted on polycrystalline MgB2. We confirmed that magnetic flux was indeed trapped in MgB2 even after demagnetization. Additionally, we observed nonvolatile MTS in MgB2 as well as Sn-Pb solders. These results suggest that the nonvolatile MTS may be a widespread characteristic of superconducting materials with flux trapping.

引用

页数：4

共 25 条

[1]

Arima H, 2023, Arxiv, DOI arXiv:2307.05957

[2] Quantitative prediction of grain boundary thermal conductivities from local atomic environments [J].

Fujii, Susumu ;

Yokoi, Tatsuya ;

Fisher, Craig A. J. ;

Moriwake, Hiroki ;

Yoshiya, Masato .

NATURE COMMUNICATIONS, 2020, 11 (01)

[3] Grain boundaries in high-Tc superconductors [J].

Hilgenkamp, H ;

Mannhart, J .

REVIEWS OF MODERN PHYSICS, 2002, 74 (02) :485-549

[4] Magneto-thermal conductivity effect and enhanced thermoelectric figure of merit in Ag2Te [J].

Hirata, Keisuke ;

Kuga, Kentaro ;

Matsunami, Masaharu ;

Zhu, Minyue ;

Heremans, Joseph P. P. ;

Takeuchi, Tsunehiro .

AIP ADVANCES, 2023, 13 (01)

[5] Room-Temperature Voltage Tunable Phonon Thermal Conductivity via Reconfigurable Interfaces in Ferroelectric Thin Films [J].

Ihlefeld, Jon F. ;

Foley, Brian M. ;

Scrymgeour, David A. ;

Michael, Joseph R. ;

McKenzie, Bonnie B. ;

Medlin, Douglas L. ;

Wallace, Margeaux ;

Trolier-McKinstry, Susan ;

Hopkins, Patrick E. .

NANO LETTERS, 2015, 15 (03) :1791-1795

[6] Three-dimensional visualization in powder diffraction [J].

Izumi, Fujio ;

Momma, Koichi .

APPLIED CRYSTALLOGRAPHY XX, 2007, 130 :15-20

[7] Flux pinning properties of undoped and C-doped MgB2 bulks with controlled grain sizes [J].

Katsura, Yukari ;

Yamamoto, Akiyasu ;

Ueda, Shinya ;

Iwayama, Isao ;

Horii, Shigeru ;

Shimoyama, Jun-ichi ;

Kishio, Kohji .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2007, 460 :572-573

[8] Anisotropic magnetothermal resistance in Ni nanowires [J].

Kimling, Johannes ;

Gooth, Johannes ;

Nielsch, Kornelius .

PHYSICAL REVIEW B, 2013, 87 (09)

[9]

Ksenofontov V., 2023, NAT PHYS, V2023, DOI DOI 10.1038/s41567-023-02089-1

[10] Strongly linked current flow in polycrystalline forms of the superconductor MgB2 [J].

Larbalestier, DC ;

Cooley, LD ;

Rikel, MO ;

Polyanskii, AA ;

Jiang, J ;

Patnaik, S ;

Cai, XY ;

Feldmann, DM ;

Gurevich, A ;

Squitieri, AA ;

Naus, MT ;

Eom, CB ;

Hellstrom, EE ;

Cava, RJ ;

Regan, KA ;

Rogado, N ;

Hayward, MA ;

He, T ;

Slusky, JS ;

Khalifah, P ;

Inumaru, K ;

Haas, M .

NATURE, 2001, 410 (6825) :186-189

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