Magnetocaloric effect measurements in ultrahigh magnetic fields up to 120 T
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866910045667590144 |
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| author | Ogawa, Reon Gen, Masaki Matsuhira, Kazuyuki Kohama, Yoshimitsu |
| author_facet | Ogawa, Reon Gen, Masaki Matsuhira, Kazuyuki Kohama, Yoshimitsu |
| contents | We report proof-of-concept measurements of the magnetocaloric effect (MCE) in ultrahigh magnetic fields up to 120 T for the classical spin-ice compound Ho$_{2}$Ti$_{2}$O$_{7}$. Radio-frequency resistivity measurements using an Au$_{16}$Ge$_{84}$ thin-film thermometer enable us to detect a rapid change in the sample temperature associated with a crystal-field level crossing in the high-field region in addition to a giant MCE at low fields. We discuss a possible delay in the temperature response and outline prospects for more precise MCE measurements in destructive pulsed fields. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_04509 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magnetocaloric effect measurements in ultrahigh magnetic fields up to 120 T Ogawa, Reon Gen, Masaki Matsuhira, Kazuyuki Kohama, Yoshimitsu Strongly Correlated Electrons Materials Science We report proof-of-concept measurements of the magnetocaloric effect (MCE) in ultrahigh magnetic fields up to 120 T for the classical spin-ice compound Ho$_{2}$Ti$_{2}$O$_{7}$. Radio-frequency resistivity measurements using an Au$_{16}$Ge$_{84}$ thin-film thermometer enable us to detect a rapid change in the sample temperature associated with a crystal-field level crossing in the high-field region in addition to a giant MCE at low fields. We discuss a possible delay in the temperature response and outline prospects for more precise MCE measurements in destructive pulsed fields. |
| title | Magnetocaloric effect measurements in ultrahigh magnetic fields up to 120 T |
| topic | Strongly Correlated Electrons Materials Science |
| url | https://arxiv.org/abs/2512.04509 |