What is Multi-extreme THz ESR? Developments and its Applications

IF 1.1 4区物理与天体物理 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL

Applied Magnetic Resonance Pub Date : 2024-10-25 DOI:10.1007/s00723-024-01722-3

H. Ohta, S. Okubo, E. Ohmichi, H. Takahashi, T. Sakurai

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引用次数: 0

Abstract

This review explores the multi-extreme THz ESR system in Kobe, Japan, with a focus on pulsed magnetic fields, mechanical detection, and high pressure as central elements of multi-extreme THz ESR. Initially, it discusses the advantages of multi-frequency THz ESR using mini-pulsed and 55 T‒pulsed magnetic fields, with typical examples featuring the finite Haldane chain substance Y₂BaNi_0.96Mg_0.04O₅ and the deformed diamond chain antiferromagnet Cu₃(CO₃)₂(OH)₂ (Azurite). The measurement efficiency and the measurement beyond the magnetic phase transition, in contrast to the conventional superconducting magnet, are discussed. Second, the high sensitivity obtained from the use of a nano-membrane for mechanical detection is shown. Also shown are the high-temperature (280 K) THz ESR results for DPPH powder and a Cu(C₄H₄N₂)(NO₃)₂ (CuPzN) single crystal, with the combination of a nano-membrane device and a high-power source, a gyrotron. Finally, the high-pressure THz ESR results for KCuCl₃ using a transmission-type double-layered pressure cell are shown, along with the application of the thermally detected high-pressure THz ESR.

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来源期刊

Applied Magnetic Resonance 物理-光谱学

CiteScore

1.90

自引率

10.00%

发文量

审稿时长

2.3 months

期刊介绍： Applied Magnetic Resonance provides an international forum for the application of magnetic resonance in physics, chemistry, biology, medicine, geochemistry, ecology, engineering, and related fields. The contents include articles with a strong emphasis on new applications, and on new experimental methods. Additional features include book reviews and Letters to the Editor.