Enhancement and maximum in the isobaric specific-heat capacity measurements of deeply supercooled water using ultrafast calorimetry
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- Alexander Späh
- Department of Physics, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden;
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- Harshad Pathak
- Department of Physics, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden;
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- Niloofar Esmaeildoost
- Biomedical and X-Ray Physics, Department of Applied Physics, KTH Royal Institute of Technology, AlbaNova University Center, SE-10691 Stockholm, Sweden;
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- Jonas A. Sellberg
- Biomedical and X-Ray Physics, Department of Applied Physics, KTH Royal Institute of Technology, AlbaNova University Center, SE-10691 Stockholm, Sweden;
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- Fivos Perakis
- Department of Physics, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden;
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- Kyung Hwan Kim
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea;
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- Thomas J. Lane
- SLAC National Accelerator Laboratory, Linac Coherent Light Source, Menlo Park, CA 94025;
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- Marjorie Ladd-Parada
- Department of Physics, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden;
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- Jayanath Koliyadu
- Biomedical and X-Ray Physics, Department of Applied Physics, KTH Royal Institute of Technology, AlbaNova University Center, SE-10691 Stockholm, Sweden;
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- Alexander Roland Oggenfuss
- SwissFEL, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
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- Cheolhee Yang
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea;
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- Henrik Till Lemke
- SwissFEL, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
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- Yunpei Deng
- SwissFEL, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
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- Philip J. M. Johnson
- SwissFEL, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
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- Paul Beaud
- SwissFEL, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
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- Serhane Zerdane
- SwissFEL, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
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- Roman Mankowsky
- SwissFEL, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
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- Anders Nilsson
- Department of Physics, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden;
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- Katrin Amann-Winkel
- Department of Physics, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden;
書誌事項
- 公開日
- 2021-02
- 権利情報
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- https://creativecommons.org/licenses/by-nc-nd/4.0/
- DOI
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- 10.1073/pnas.2018379118
- 公開者
- Proceedings of the National Academy of Sciences
この論文をさがす
説明
<jats:title>Significance</jats:title> <jats:p>The importance of molecular understanding of the structure, dynamics. and properties of liquid water is recognized in many scientific disciplines. Here, we study experimentally the structure and thermodynamics of bulk liquid water as it is supercooled by evaporation down to ∼228 K. The unique aspect of this work is the use of ultrafast calorimetry that enables us to determine the specific-heat capacity of water to unprecedentedly low temperatures. The observed maximum of about 218 J/mol/K at 229 K is consistent with the liquid–liquid critical point model and supports a proposed fragile-to-strong transition at ∼220 K to explain the steep decrease in the estimated self-diffusion coefficient below 235 K.</jats:p>
収録刊行物
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- Proceedings of the National Academy of Sciences
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Proceedings of the National Academy of Sciences 118 (6), e2018379118-, 2021-02
Proceedings of the National Academy of Sciences
