Pub Date : 2024-11-12DOI: 10.1038/s41567-024-02709-4
Jordan M. Shields, Divine P. Kumah
Complex oxides have competing phases with different spin, electronic and orbital order. Now it has been shown that growing thin films on different facets of a low-symmetry substrate can be used to control the phase of the ground state.
{"title":"A different facet to materials design","authors":"Jordan M. Shields, Divine P. Kumah","doi":"10.1038/s41567-024-02709-4","DOIUrl":"https://doi.org/10.1038/s41567-024-02709-4","url":null,"abstract":"Complex oxides have competing phases with different spin, electronic and orbital order. Now it has been shown that growing thin films on different facets of a low-symmetry substrate can be used to control the phase of the ground state.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"65 1","pages":""},"PeriodicalIF":19.6,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142599116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-11DOI: 10.1038/s41567-024-02691-x
Mark Buchanan
{"title":"Climate record gets hot update","authors":"Mark Buchanan","doi":"10.1038/s41567-024-02691-x","DOIUrl":"10.1038/s41567-024-02691-x","url":null,"abstract":"","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"20 11","pages":"1690-1690"},"PeriodicalIF":17.6,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142599009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-11DOI: 10.1038/s41567-024-02717-4
The 2024 Nobel prize for Physics was awarded for foundational contributions to the development of artificial neural networks. The award reflects a shift in how we understand boundaries between scientific fields — or whether such boundaries are still useful at all.
{"title":"Artificial boundaries","authors":"","doi":"10.1038/s41567-024-02717-4","DOIUrl":"10.1038/s41567-024-02717-4","url":null,"abstract":"The 2024 Nobel prize for Physics was awarded for foundational contributions to the development of artificial neural networks. The award reflects a shift in how we understand boundaries between scientific fields — or whether such boundaries are still useful at all.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"20 11","pages":"1689-1689"},"PeriodicalIF":17.6,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41567-024-02717-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142599025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-11DOI: 10.1038/s41567-024-02684-w
Richard I. Anderson
Twinkle, twinkle little star, tell me just how far you are. Richard I. Anderson discusses standard candles and their applications.
一闪一闪小星星,告诉我你还有多远。理查德-安德森(Richard I. Anderson)讨论标准蜡烛及其应用。
{"title":"The span of space","authors":"Richard I. Anderson","doi":"10.1038/s41567-024-02684-w","DOIUrl":"10.1038/s41567-024-02684-w","url":null,"abstract":"Twinkle, twinkle little star, tell me just how far you are. Richard I. Anderson discusses standard candles and their applications.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"20 11","pages":"1841-1841"},"PeriodicalIF":17.6,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142599021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-11DOI: 10.1038/s41567-024-02688-6
Anita Chandran, Hilary Lamb
{"title":"Orbital fails to take flight","authors":"Anita Chandran, Hilary Lamb","doi":"10.1038/s41567-024-02688-6","DOIUrl":"10.1038/s41567-024-02688-6","url":null,"abstract":"","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"20 11","pages":"1691-1691"},"PeriodicalIF":17.6,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142599029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-11DOI: 10.1038/s41567-024-02656-0
Y. Maeno, A. Ikeda, G. Mattoni
Superconductivity in Sr2RuO4 was discovered 30 years ago. Among the many intriguing aspects of this unconventional superconductor is the picture of spin-triplet superconductivity, which could potentially carry both charge and spin supercurrents. This proposal was considered for a long time but was ultimately disproven in 2019. Despite intense research over the past several years, the superconducting symmetry of the archetypal unconventional superconductor Sr2RuO4 remains unresolved. Here we highlight the recent controversies and give a perspective of how the final resolution may be reached. After 30 years of extensive research, the nature of the unconventional superconductivity in Sr2RuO4 is still not fully understood. This Perspective summarizes the controversies surrounding this and discusses future research.
{"title":"Thirty years of puzzling superconductivity in Sr2RuO4","authors":"Y. Maeno, A. Ikeda, G. Mattoni","doi":"10.1038/s41567-024-02656-0","DOIUrl":"10.1038/s41567-024-02656-0","url":null,"abstract":"Superconductivity in Sr2RuO4 was discovered 30 years ago. Among the many intriguing aspects of this unconventional superconductor is the picture of spin-triplet superconductivity, which could potentially carry both charge and spin supercurrents. This proposal was considered for a long time but was ultimately disproven in 2019. Despite intense research over the past several years, the superconducting symmetry of the archetypal unconventional superconductor Sr2RuO4 remains unresolved. Here we highlight the recent controversies and give a perspective of how the final resolution may be reached. After 30 years of extensive research, the nature of the unconventional superconductivity in Sr2RuO4 is still not fully understood. This Perspective summarizes the controversies surrounding this and discusses future research.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"20 11","pages":"1712-1718"},"PeriodicalIF":17.6,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1038/s41567-024-02669-9
Michael J. Steel
Optical waveguides that route light are a core technology of modern photonics and the bedrock of the global communications network. A surprising diffusion mechanism for guiding light has now been identified, and it is strangely close to home.
{"title":"Diffusive light pipes","authors":"Michael J. Steel","doi":"10.1038/s41567-024-02669-9","DOIUrl":"10.1038/s41567-024-02669-9","url":null,"abstract":"Optical waveguides that route light are a core technology of modern photonics and the bedrock of the global communications network. A surprising diffusion mechanism for guiding light has now been identified, and it is strangely close to home.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"20 12","pages":"1853-1854"},"PeriodicalIF":17.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1038/s41567-024-02667-x
Zejin Rao, Changhao Meng, Youcai Han, Liping Zhu, Kun Ding, Zhenghua An
A thorough understanding of the topological classifications of non-Hermitian energy bands is essential for advancing non-Hermitian band theory and its applications. As evidenced in various disciplines of physics, including optics, electronics and acoustics, the process of braiding plays a crucial role in the classification of non-Hermitian bands that manifest topological characteristics. Here we demonstrate topological braiding of both reflectionless states and resonant states in non-Hermitian magnons, unveiling a reversal in their braiding handedness. Furthermore, we constitute parity–time symmetric reflectionless scattering modes, along with their degenerate exceptional points. Our results not only underscore the importance of braided scattering states, but also establish magnonics as a versatile platform for exploring non-Hermitian band theory and developing magnon-based applications, including topological energy transfer, tunable absorbers and logic circuits. Extending topological braids of complex energy bands to non-Hermitian systems of magnons—the quanta of spin waves—is a crucial step in the development of spin-based topological devices. This has now been experimentally demonstrated.
{"title":"Braiding reflectionless states in non-Hermitian magnonics","authors":"Zejin Rao, Changhao Meng, Youcai Han, Liping Zhu, Kun Ding, Zhenghua An","doi":"10.1038/s41567-024-02667-x","DOIUrl":"10.1038/s41567-024-02667-x","url":null,"abstract":"A thorough understanding of the topological classifications of non-Hermitian energy bands is essential for advancing non-Hermitian band theory and its applications. As evidenced in various disciplines of physics, including optics, electronics and acoustics, the process of braiding plays a crucial role in the classification of non-Hermitian bands that manifest topological characteristics. Here we demonstrate topological braiding of both reflectionless states and resonant states in non-Hermitian magnons, unveiling a reversal in their braiding handedness. Furthermore, we constitute parity–time symmetric reflectionless scattering modes, along with their degenerate exceptional points. Our results not only underscore the importance of braided scattering states, but also establish magnonics as a versatile platform for exploring non-Hermitian band theory and developing magnon-based applications, including topological energy transfer, tunable absorbers and logic circuits. Extending topological braids of complex energy bands to non-Hermitian systems of magnons—the quanta of spin waves—is a crucial step in the development of spin-based topological devices. This has now been experimentally demonstrated.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"20 12","pages":"1904-1911"},"PeriodicalIF":17.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1038/s41567-024-02674-y
Haoxin Zhou
The ground state of electrons in charge-neutral graphene in a strong magnetic field has not been conclusively identified. Thermal transport measurements narrow down the possible candidates, with evidence that the ground state does not conduct heat.
{"title":"No heat flow in charge-neutral graphene","authors":"Haoxin Zhou","doi":"10.1038/s41567-024-02674-y","DOIUrl":"10.1038/s41567-024-02674-y","url":null,"abstract":"The ground state of electrons in charge-neutral graphene in a strong magnetic field has not been conclusively identified. Thermal transport measurements narrow down the possible candidates, with evidence that the ground state does not conduct heat.","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"20 12","pages":"1849-1850"},"PeriodicalIF":17.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01Epub Date: 2022-03-09DOI: 10.1080/08869634.2022.2047511
Anna Alessandri Bonetti, Patrizia Gallenzi
Objective: To detect whether myotatic reflex activation of masticatory muscles during drug-induced sleep endoscopy (DISE) can be an indirect marker for temporomandibular disorder (TMD) in patients suffering from obstructive sleep apnea (OSA).
Methods: OSA patients were prospectively recruited and underwent a complete TMD examination prior to undergoing DISE with the addition of electrodes applied over masticatory muscles. A positive activation of myotatic reflex was considered in case of an increase in muscle tone of at least 50%.
Results: Of the 41 patients included, 48.8% presented activation of myotatic reflex. Of these patients, 45% presented a TMD diagnosis, 40% presented pain at masticatory muscles palpation, and 15% did not report pain during clinical examination.
Conclusion: An increase in EMG activity during mandibular advancement is not associated with TMD presence, but it can be an indirect marker of pain in the orofacial area in OSA patients.
{"title":"Is there an association between EMG activity and temporomandibular disorders during orthotic mandibular advancement in sleep apnea patients undergoing DISE?","authors":"Anna Alessandri Bonetti, Patrizia Gallenzi","doi":"10.1080/08869634.2022.2047511","DOIUrl":"10.1080/08869634.2022.2047511","url":null,"abstract":"<p><strong>Objective: </strong>To detect whether myotatic reflex activation of masticatory muscles during drug-induced sleep endoscopy (DISE) can be an indirect marker for temporomandibular disorder (TMD) in patients suffering from obstructive sleep apnea (OSA).</p><p><strong>Methods: </strong>OSA patients were prospectively recruited and underwent a complete TMD examination prior to undergoing DISE with the addition of electrodes applied over masticatory muscles. A positive activation of myotatic reflex was considered in case of an increase in muscle tone of at least 50%.</p><p><strong>Results: </strong>Of the 41 patients included, 48.8% presented activation of myotatic reflex. Of these patients, 45% presented a TMD diagnosis, 40% presented pain at masticatory muscles palpation, and 15% did not report pain during clinical examination.</p><p><strong>Conclusion: </strong>An increase in EMG activity during mandibular advancement is not associated with TMD presence, but it can be an indirect marker of pain in the orofacial area in OSA patients.</p>","PeriodicalId":19100,"journal":{"name":"Nature Physics","volume":"17 1","pages":"730-735"},"PeriodicalIF":2.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79528793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}