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  1. Article

    Open Access

    Charge transfer and spin-valley locking in 4Hb-TaS2

    4Hb-TaS2 is a superconductor that exhibits unique characteristics such as time-reversal symmetry breaking, hidden magnetic memory, and topological edge modes. It is a naturally occurring heterostructure comprisin...

    Avior Almoalem, Roni Gofman, Yuval Nitzav, Ilay Mangel in npj Quantum Materials (2024)

  2. No Access

    Article

    Biodegradable materials and devices for neuroelectronics

    Recent advances in biodegradable neuroelectronics, which remove the need for extraction surgery and reduce foreign body reactions, provide versatile options for implantable devices, such as for provisional dia...

    Giheon Kim, Minki Hong, Yerim Lee, Jahyun Koo in MRS Bulletin (2023)

  3. Article

    Open Access

    Field-linear anomalous Hall effect and Berry curvature induced by spin chirality in the kagome antiferromagnet Mn3Sn

    During the past two decades, it has been established that a non-trivial electron wave-function topology generates an anomalous Hall effect (AHE), which shows itself as a Hall conductivity non-linear in magneti...

    **aokang Li, Jahyun Koo, Zengwei Zhu, Kamran Behnia, Binghai Yan in Nature Communications (2023)

  4. Article

    Open Access

    Wireless, multimodal sensors for continuous measurement of pressure, temperature, and hydration of patients in wheelchair

    Individuals who are unable to walk independently spend most of the day in a wheelchair. This population is at high risk for develo** pressure injuries caused by sitting. However, early diagnosis and preventi...

    Seokjoo Cho, Hyeonseok Han, Hyunwoo Park, Sung-Uk Lee in npj Flexible Electronics (2023)

  5. No Access

    Article

    Open thoracic surgical implantation of cardiac pacemakers in rats

    Genetic engineering and implantable bioelectronics have transformed investigations of cardiovascular physiology and disease. However, the two approaches have been difficult to combine in the same species: gene...

    Rose T. Yin, Sheena W. Chen, K. Benjamin Lee, Yeon Sik Choi, Jahyun Koo in Nature Protocols (2023)

  6. Article

    Open Access

    Proximity-magnetized quantum spin Hall insulator: monolayer 1 T’ WTe2/Cr2Ge2Te6

    Van der Waals heterostructures offer great versatility to tailor unique interactions at the atomically flat interfaces between dissimilar layered materials and induce novel physical phenomena. By bringing mono...

    Junxue Li, Mina Rashetnia, Mark Lohmann, Jahyun Koo, Youming Xu in Nature Communications (2022)

  7. Article

    Open Access

    Exchange-biased topological transverse thermoelectric effects in a Kagome ferrimagnet

    Kagome metal TbMn6Sn6 was recently discovered to be a ferrimagnetic topological Dirac material by scanning tunneling microscopy/spectroscopy measurements. Here, we report the observation of large anomalous Nernst...

    Heda Zhang, Jahyun Koo, Chunqiang Xu, Milos Sretenovic in Nature Communications (2022)

  8. No Access

    Article

    Evidence of topological boundary modes with topological nodal-point superconductivity

    Topological superconductors are an essential component for topologically protected quantum computation and information processing. Although signatures of topological superconductivity have been reported in het...

    Abhay Kumar Nayak, Aviram Steinbok, Yotam Roet, Jahyun Koo in Nature Physics (2021)

  9. Article

    Open Access

    Author Correction: Battery-free, wireless soft sensors for continuous multi-site measurements of pressure and temperature from patients at risk for pressure injuries

    Yong Suk Oh, Jae-Hwan Kim, Zhaoqian **e, Seokjoo Cho in Nature Communications (2021)

  10. No Access

    Article

    Photocurable bioresorbable adhesives as functional interfaces between flexible bioelectronic devices and soft biological tissues

    Flexible electronic/optoelectronic systems that can intimately integrate onto the surfaces of vital organ systems have the potential to offer revolutionary diagnostic and therapeutic capabilities relevant to a...

    Quansan Yang, Tong Wei, Rose T. Yin, Mingzheng Wu, Yameng Xu in Nature Materials (2021)

  11. No Access

    Article

    Fully implantable and bioresorbable cardiac pacemakers without leads or batteries

    Temporary cardiac pacemakers used in periods of need during surgical recovery involve percutaneous leads and externalized hardware that carry risks of infection, constrain patient mobility and may damage the h...

    Yeon Sik Choi, Rose T. Yin, Anna Pfenniger, Jahyun Koo in Nature Biotechnology (2021)

  12. Article

    Open Access

    Battery-free, wireless soft sensors for continuous multi-site measurements of pressure and temperature from patients at risk for pressure injuries

    Capabilities for continuous monitoring of pressures and temperatures at critical skin interfaces can help to guide care strategies that minimize the potential for pressure injuries in hospitalized patients or ...

    Yong Suk Oh, Jae-Hwan Kim, Zhaoqian **e, Seokjoo Cho in Nature Communications (2021)

  13. Article

    A review of BioFET’s basic principles and materials for biomedical applications

    Interest in biomolecular sensors for diagnosis of early diseases and prognosis of the diseases is increasing day by day. Among them, FET-based sensors are very useful in that of their versatile operating chara...

    Daeun Sung, Jahyun Koo in Biomedical Engineering Letters (2021)

  14. No Access

    Article

    Chirality-driven topological electronic structure of DNA-like materials

    Topological aspects of the geometry of DNA and similar chiral molecules have received a lot of attention, but the topology of their electronic structure is less explored. Previous experiments revealed that DNA...

    Yizhou Liu, Jiewen **ao, Jahyun Koo, Binghai Yan in Nature Materials (2021)

  15. No Access

    Article

    A review of wearable biosensors for sweat analysis

    Recent advances in the skin-interfaced wearable sweat sensors allow a personalized daily diagnosis and prognosis of the diseases in a form of a non-invasive, portable, and continuous monitoring system. Especia...

    Seongbin Jo, Daeun Sung, Sungbong Kim, Jahyun Koo in Biomedical Engineering Letters (2021)

  16. Article

    Open Access

    Giant c-axis nonlinear anomalous Hall effect in Td-MoTe2 and WTe2

    While the anomalous Hall effect can manifest even without an external magnetic field, time reversal symmetry is nonetheless still broken by the internal magnetization of the sample. Recently, it has been shown...

    Archana Tiwari, Fangchu Chen, Shazhou Zhong, Elizabeth Drueke in Nature Communications (2021)

  17. Article

    Open Access

    Author Correction: Stretchable, dynamic covalent polymers for soft, long-lived bioresorbable electronic stimulators designed to facilitate neuromuscular regeneration

    A Correction to this paper has been published: https://doi.org/10.1038/s41467-020-20857-y

    Yeon Sik Choi, Yuan-Yu Hsueh, Jahyun Koo, Quansan Yang in Nature Communications (2021)

  18. Article

    Open Access

    Stretchable, dynamic covalent polymers for soft, long-lived bioresorbable electronic stimulators designed to facilitate neuromuscular regeneration

    Bioresorbable electronic stimulators are of rapidly growing interest as unusual therapeutic platforms, i.e., bioelectronic medicines, for treating disease states, accelerating wound healing processes and elimi...

    Yeon Sik Choi, Yuan-Yu Hsueh, Jahyun Koo, Quansan Yang in Nature Communications (2020)

  19. Article

    Open Access

    Author Correction: Giant room temperature anomalous Hall effect and tunable topology in a ferromagnetic topological semimetal Co2MnAl

    An amendment to this paper has been published and can be accessed via a link at the top of the paper.

    Peigang Li, Jahyun Koo, Wei Ning, **guo Li, Leixin Miao in Nature Communications (2020)

  20. Article

    Open Access

    Giant room temperature anomalous Hall effect and tunable topology in a ferromagnetic topological semimetal Co2MnAl

    Weyl semimetals exhibit unusual surface states and anomalous transport phenomena. It is hard to manipulate the band structure topology of specific Weyl materials. Topological transport phenomena usually appear...

    Peigang Li, Jahyun Koo, Wei Ning, **guo Li, Leixin Miao in Nature Communications (2020)

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