Quantum Criticality in URhGe - UIrGe system
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- Pospisil J.
- ASRC-JAEA
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- Haga Y.
- ASRC-JAEA
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- Kambe S.
- ASRC-JAEA
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- Tokunaga Y.
- ASRC-JAEA
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- Tateiwa N.
- ASRC-JAEA
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- Aoki D.
- IMR Tohoku Univ.
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- Uwatoko Y.
- The Univ. of Tokyo
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- Honda F.
- IMR Tohoku Univ.
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- Nakamura A.
- IMR Tohoku Univ.
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- Homma Y.
- IMR Tohoku Univ.
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- Yamamoto E.
- ASRC-JAEA
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- Yamamura T.
- The Univ. of Tokyo
Abstract
<p>We have investigated field-temperature (B - T) phase diagram of UIr1-xRhxGe system with AFM/FM boundary. In a FM superconductor URhGe, the enhanced quantum tricritical fluctuations were reported. In contrast, along Rh doping in an AFM UIrGe, the usual quantum critical behavior is confirmed for the AFM/FM quantum critical point. We conclude that magnetic fluctuations in UIrGe are broken by opening of the AFM gap at TN. AFM gap closing and recovery of the magnetic fluctuations at low temperatures in UIrGe are expected by magnetic field along the b-axis at Bb,crit and by external pressure. We have emphasized a clear connection between the characteristic Tmax and metamagnetic field Bb,crit creating the Q-phase dome. We recognized presence of maximum at Tmax in static susceptibility Chib can be a good test of the criticality/tricriticality boundaries through the UCoGe - URhGe - UIrGe system.</p>
Journal
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- Meeting Abstracts of the Physical Society of Japan
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Meeting Abstracts of the Physical Society of Japan 71.2 (0), 1760-1760, 2016
The Physical Society of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282680936521728
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- NII Article ID
- 130006244427
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- ISSN
- 21890803
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed