Extrinsic observation and intrinsic state
Nature Materials, Published online: 02 May 2025; doi:10.1038/s41563-025-02187-w
Signatures of O2 molecules found in oxide-based battery electrodes through resonant inelastic X-ray scattering are now believed to be the extrinsic product of the intrinsic oxidized anions.Anisotropic spin transport in proximitized graphene
Nature Materials, Published online: 02 May 2025; doi:10.1038/s41563-025-02231-9
Graphene in proximity with pentagonal PdSe2 exhibits anisotropic and gate-tunable spin–orbit coupling, enabling a tenfold modulation of spin lifetime at room temperature.Extension on the Conjugated Framework of Non-fullerene Electron Acceptors toward Highly Efficient Organic Photovoltaics
DOI: 10.1039/D5EE00845J, PaperYuandong Sun, Liang Wang, Dawei Gao, Chen Chen, Zirui Gan, Jingchao Cheng, Jing Zhou, Dan Liu, Wei Li, Tao Wang
Extending the π-conjugated framework of Non-fullerene electron acceptors (NFAs) have been considered as an effective method to improve the optoelectronic properties, however, how does the conjugation extension affect the molecular...
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Wed 07 May 14:00: Reconstructing wintertime seawater pCO2 on the data-barren shelf of the western Weddell Sea based on summertime bottom water measurements
The dense waters formed on the broad shelf of the western Weddell Sea are a source of Weddell Sea Bottom Water (WSBW), which transports anthropogenic CO2 along the continental slope to the bottom of the ocean. Our updated time series shows a positive trend of carbon in WSBW . To understand the drivers for this pathway for carbon sequestration, we need to understand the processes affecting carbon concentrations in shelf waters at the time of dense water formation, which is predominantly during sea ice formation in winter. Unfortunately, wintertime marine observations are particularly scarce in the western Weddell Sea. We are therefore testing a method that reconstructs the seawater partial pressure of CO2 (pCO2) representative of wintertime conditions in this dense-water formation region, using carbonate chemistry observations made in WSBW in the summer. Results suggest that atmospheric CO2 uptake is the main driver of increasing carbon in WSBW , and thus that equilibration of surface seawater with the atmosphere is possible despite year-round sea ice cover in this region.
- Speaker: Elise Droste (University of East Anglia)
- Wednesday 07 May 2025, 14:00-15:00
- Venue: BAS Seminar Room 1.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Dr Birgit Rogalla.
Tue 06 May 14:30: Sums along binary cubic forms.
We discuss ongoing work with Joseph Leung in which we obtain estimates for sums of Fourier coefficients of GL(2) and certain GL(3) automorphic forms along the values of irreducible binary cubics.
- Speaker: Mayank Pandey (Princeton)
- Tuesday 06 May 2025, 14:30-15:30
- Venue: MR13.
- Series: Number Theory Seminar; organiser: Jef Laga.
Tue 27 May 14:00: Title to be confirmed
Abstract not available
- Speaker: Emad Heydari Beni & Lode Hoste, Nokia Bell Labs
- Tuesday 27 May 2025, 14:00-15:00
- Venue: Webinar & LT2, Computer Laboratory, William Gates Building..
- Series: Computer Laboratory Security Seminar; organiser: Anna Talas.
Tue 17 Jun 14:00: Title to be confirmed
Abstract not available
- Speaker: Michael A. Specter, Georgia Tech
- Tuesday 17 June 2025, 14:00-15:00
- Venue: Webinar & LT2, Computer Laboratory, William Gates Building..
- Series: Computer Laboratory Security Seminar; organiser: Anna Talas.
Thu 01 May 14:00: Title to be confirmed
Abstract not available
- Speaker: Michael A. Specter, Georgia Tech
- Thursday 01 May 2025, 14:00-15:00
- Venue: Webinar & LT2, Computer Laboratory, William Gates Building..
- Series: Computer Laboratory Security Seminar; organiser: Anna Talas.
Thu 12 Jun 14:00: Title to be confirmed
Abstract not available
- Speaker: Prof. Marina Filip (Oxford)
- Thursday 12 June 2025, 14:00-15:30
- Venue: Seminar Room 3, RDC.
- Series: Theory of Condensed Matter; organiser: Bo Peng.
Thu 05 Jun 14:00: Title to be confirmed
Abstract not available
- Speaker: Prof. Chris Hooley (Coventry)
- Thursday 05 June 2025, 14:00-15:30
- Venue: Seminar Room 3, RDC.
- Series: Theory of Condensed Matter; organiser: Bo Peng.
Thu 23 Oct 14:00: Title to be confirmed
Abstract not available
- Speaker: Prof. Felix Flicker (Bristol)
- Thursday 23 October 2025, 14:00-15:30
- Venue: Seminar Room 3, RDC.
- Series: Theory of Condensed Matter; organiser: Bo Peng.
Symmetrically pumped charges with high confinement stiffness for boosted performance in wave energy harvesting
DOI: 10.1039/D5EE01158B, PaperHui-jing Qiu, Wei-Zhi Song, Zichao Deng, Zhong Lin Wang, Liang Xu
Enhancing the output is the most crucial challenge for developing triboelectric nanogenerators (TENGs) as an alternative technology to exploit wave energy, which is more difficult than other application scenarios due...
The content of this RSS Feed (c) The Royal Society of Chemistry
Tue 17 Jun 11:15: Love Bites: The Deadly Romance of Spider Pulsars
Pulsars in binary systems are fantastic physics laboratories, primarily because their orbital dynamics allow us to probe binary evolution, test gravity theories, measure neutron star masses, etc. Among them are the “black widows” and “redbacks”, which are nicknamed after the deadly arachnids because the millisecond pulsar they contain gradually destroys their low mass companion. The strongly irradiated dayside displayed by the low-mass companions in these systems is reminiscent of what is observed in exoplanets called “hot jupiters”. In the last decade, the number of known spiders has grown exponentially to the point of becoming the most prevalent type of fast rotating binary pulsars. In this talk, I will present some of the recent efforts undertaken with the MeerKAT telescope to uncover these pulsars and review some of the key advances they have provided for our understanding of binary evolution, stellar physics under extreme irradiation, and measurement of neutron star masses.
- Speaker: Prof. Rene Breton (University of Manchester)
- Tuesday 17 June 2025, 11:15-12:00
- Venue: Martin Ryle Seminar Room, Kavli Institute.
- Series: Hills Coffee Talks; organiser: Charles Walker.
Fri 30 May 14:00: Title to be confirmed
Abstract not available
- Speaker: Johanna Ziegel (ETH Zurich)
- Friday 30 May 2025, 14:00-15:00
- Venue: MR12, Centre for Mathematical Sciences.
- Series: Statistics; organiser: Qingyuan Zhao.
Advances in Hexaazatriphenylene-based COFs for Rechargeable Batteries: From Structural Design to Electrochemical Performance
DOI: 10.1039/D5EE01599E, Review Article Open Access   This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Zhonghui Sun, Zhongping Li, Jinsong Peng, Xiaomeng Yan, Hang Shang, Yucheng Jin, Qiannan Zhao, Changqing Li, Siliu Lyu, Chunxia Chen, Jong-Beom Baek
As commercial batteries reach capacity and energy density limits, especially with graphite anodes and transition metal cathodes, the need for advanced alternatives grows. Organic electrodes offer the promise of high...
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Operando X-ray characterization platform to unravel catalyst degradation under accelerated stress testing in CO<sub>2</sub> electrolysis
Nature Nanotechnology, Published online: 01 May 2025; doi:10.1038/s41565-025-01916-1
The authors present a customized operando synchrotron X-ray platform to track simultaneously ion, water and catalyst evolution in CO2 electrolysis based on membrane-electrode assembly. Enhanced Au durability is caused by a robust crystal structure and strong adhesion to substrate.Tue 17 Jun 14:30: Title to be confirmed
Abstract not available
- Speaker: Patrick Allen (McGill)
- Tuesday 17 June 2025, 14:30-15:30
- Venue: MR13.
- Series: Number Theory Seminar; organiser: Rong Zhou.
Fri 02 May 10:30: Biologically Inspired Soft Robotics
Robotics has the potential to address many of today’s pressing problems in fields ranging from healthcare to manufacturing to disaster relief. However, the traditional approaches used on the factory floor do not perform well in unstructured environments. The key to solving many of these challenges is to explore new, non-traditional designs. Fortunately, nature surrounds us with examples of novel ways to navigate and interact with the real world. Dr. Tolley’s Bioinspired Robotics and Design Lab seeks to borrow the key principles of operation from biological systems and apply them to robotic design. This talk will give an overview of recent projects in the lab that investigate the ways in which the use of non-traditional materials can help solve challenging problems in robotics. These projects seek to develop bioinspired systems capable of navigating the world by walking, digging, and swimming (inspired by animals like turtles, worms, and squid) and of interacting safely with humans and delicate objects.
The seminar will be held in JDB Seminar Room , Department of Engineering, and online (zoom): https://newnham.zoom.us/j/92544958528?pwd=YS9PcGRnbXBOcStBdStNb3E0SHN1UT09
- Speaker: Michael T. Tolley UC San Diego
- Friday 02 May 2025, 10:30-11:30
- Venue: JDB Seminar Room, Department of Engineering and online (Zoom).
- Series: CUED Control Group Seminars; organiser: Fulvio Forni.
Fri 20 Jun 13:00: Well-posed initial value formulation of general effective field theories of gravity
In this talk, I will show that all higher-derivative effective field theories (EFTs) of vacuum gravity admit a well-posed initial value formulation when augmented by suitable regularising terms. These regularising terms can be obtained by field redefinitions and do not affect the dynamics in the regime of validity of EFT . I will explain how our result applies to the quadratic, cubic, and quartic truncations of the EFT of gravity and to various truncations of a simple EFT of a scalar field. Finally, I will also discuss some numerical results on the non-linear dynamics of this simple scalar field theory.
- Speaker: Aron Kovacs, Queen Mary University of London
- Friday 20 June 2025, 13:00-14:00
- Venue: Potter room/Zoom.
- Series: DAMTP Friday GR Seminar; organiser: Daniela Cors.
Tue 06 May 14:00: Cocktail Effects in Superconductivity: High-Entropy Approach to Antimonide Compounds
High-entropy compounds, stabilized by configurational entropy, have attracted considerable attention due to their unique properties and functionalities [1-3]. In this study, we applied the high-entropy concept to antimonide systems and discovered an entropy-stabilized antimonide compound with a NiAs-type structure [4]. Specifically, we investigated the superconducting properties of (RuRhPdIr)₁₋ₓPtₓSb and found that the superconducting transition temperature (Tc) and upper critical field (Hc₂) exhibit strong composition dependence [5]. A maximum Tc of 3.1 K and a significant enhancement in Hc₂ were observed at intermediate compositions, indicating a novel “cocktail effect” arising from chemical disorder. These results demonstrate the potential of entropy engineering in designing new superconducting materials.
[1] J. W. Yeh et al., Adv Eng Mater 6, 299 (2004).
[2] B. Cantor et al., Materials Science and Engineering: A 375 –377, 213 (2004).
[3] C. M. Rost etal., Nat. Commun. 6, 8485 (2015).
[4] D. Hirai et al., Inorg. Chem. 62, 14207 (2023).
[5] D. Hirai et al., Chem. Mater. 36, 9547 (2024).
- Speaker: Professor Daigorou Hirai, Nagoya University
- Tuesday 06 May 2025, 14:00-15:00
- Venue: RDC Seminar East.
- Series: Quantum Matter Seminar; organiser: Mads Fonager Hansen.