Physics-Uspekhi最新文献

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X-ray and vacuum ultraviolet spectroscopy in LPI LPI中的x射线和真空紫外光谱
IF 2.7 3区 物理与天体物理
Physics-Uspekhi Pub Date : 2023-07-01 DOI: 10.3367/ufne.2023.07.039501
E. Ragozin
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引用次数: 0
Physics news on the Internet: August 2023 互联网物理新闻:2023年8月
IF 2.7 3区 物理与天体物理
Physics-Uspekhi Pub Date : 2023-07-01 DOI: 10.3367/ufne.2023.07.039511
Y. N. Eroshenko
{"title":"Physics news on the Internet: August 2023","authors":"Y. N. Eroshenko","doi":"10.3367/ufne.2023.07.039511","DOIUrl":"https://doi.org/10.3367/ufne.2023.07.039511","url":null,"abstract":"The discovery of superconductivity [1] at a critical temperature reaching Tc ˆ 203 K in the pressure range of 100 to 250 GPa (in diamond anvils) in the H3S system stimulated a flood of experimental studies of high-temperature superconductivity of hydrides at megabar pressures (see reviews [2, 3]). A theoretical analysis immediately confirmed that these record Tc values are due to traditional electron±phonon interaction, and a good description of the experimental situation is due to the Eliashberg±McMillan theory in the limit of a sufficiently strong electron±phonon interaction [4, 5]. Moreover, detailed calculations for a whole number of transition metal hydrides under pressure [4] resulted in the occurrence of a rather large number of such systems with record Tc values. In some cases, these predictions found a magnificent confirmation, in particular, record temperature values Tc ˆ 250ÿ260 K were reached experimentally in the LaH10 system [6, 7]. These studies were of great importance, mainly because they clearly demonstrated the absence of substantial restrictions on Tc in the framework of the electron±phonon mechanism of Cooper paring, where it was conventionally accepted thatTc cannot exceed 30±40K.After the appearance of papers [6, 7], it became clear that the discovery of room temperature superconductivity, which had been only the dream of a few theoreticians over many years [8, 9], was not too far off. And now this barrier has been crossed, for in recent paper [10] superconductivity with Tc ˆ 287:7 1:2 K (i.e., nearly ‡15 C) has been obtained in the CÿHÿS system at a pressure of 267 10 GPa. The authors took advantage of the fact that hydrogen sulfide H2S mixes well with methane CH4. Such a mixture (with an additional injection of H2) underwent high-pressure photochemical synthesis (using laser radiation) and was examined at pressures from 100 to 300 GPa. Fairly convincing data were obtained on a sufficiently narrow superconducting transition (from resistive measurements) with Tc from 175 to 287 K upon pressure variation from 175 to 267 GPa that were confirmed by measurements of diamagnetic response (Meissner effect) at pressures from 175 to 200 GPa and by direct (resistive) measurements of the upper critical magnetic field (Tc lowering to 9 T under the action of the external magnetic field) near Tc. These measurements showed that the system under studywas a conventional second-order superconductor and theHc2 values atT ˆ 0 could reach 62 or 87 T (depending on the applied extrapolation to T ˆ 0). Unfortunately, the authors have not yet exactly determined the structure of the investigated superconducting phase CÿHÿS because of the difficulties in X-ray measurements in light-atom systems (smallness of the X-ray scattering cross section). It is believed that this problem will be solved in the nearest future in a combination of direct experiments and modern methods of theoretical simulation of high-pressure stable structures [4]. It is practical","PeriodicalId":20068,"journal":{"name":"Physics-Uspekhi","volume":"13 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80564566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Low-frequency oscillations in the direct osmotic process in a membrane with nanosized pores 纳米孔膜中直接渗透过程的低频振荡
IF 2.7 3区 物理与天体物理
Physics-Uspekhi Pub Date : 2023-06-01 DOI: 10.3367/ufne.2023.06.039365
G. I. Lapushkin, Vladimir Yu. Stozhkov
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引用次数: 0
Mikhail Yakovlevich Marov (on his 90th birthday) 米哈伊尔·雅克夫列维奇·马罗夫(庆祝他90岁生日)
3区 物理与天体物理
Physics-Uspekhi Pub Date : 2023-06-01 DOI: 10.3367/ufne.2023.06.039374
Alexander I. Aptekarev, Yurii Yu. Balega, Dmitrii V. Bisikalo, V.G. Bondur, Lev M. Zelenyi, Anatoli A. Petrukovich, V.A. Sadovnichii, V.A. Solov'ev, Rashid A. Sunyaev, Anatolii M. Cherepashchuk, Boris N. Chetverushkin, Boris M. Shustov
{"title":"Mikhail Yakovlevich Marov (on his 90th birthday)","authors":"Alexander I. Aptekarev, Yurii Yu. Balega, Dmitrii V. Bisikalo, V.G. Bondur, Lev M. Zelenyi, Anatoli A. Petrukovich, V.A. Sadovnichii, V.A. Solov'ev, Rashid A. Sunyaev, Anatolii M. Cherepashchuk, Boris N. Chetverushkin, Boris M. Shustov","doi":"10.3367/ufne.2023.06.039374","DOIUrl":"https://doi.org/10.3367/ufne.2023.06.039374","url":null,"abstract":"Mikhail Yakovlevich Marov (on his 90th birthday), Aptekarev A.I., Balega Yu.Yu., Bisikalo D.V., Bondur V.G., Zelenyi L.M., Petrukovich A.A., Sadovnichii V.A., Solov’ev V.A., Sunyaev R.A., Cherepashchuk A.M., Chetverushkin B.N., Shustov B.M.","PeriodicalId":20068,"journal":{"name":"Physics-Uspekhi","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136161457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
On the issue of detection of Majorana fermions in heat capacity and Hall effect measurements in the Kondo insulator YbB12 近道绝缘子YbB12热容量和霍尔效应测量中马约拉纳费米子的探测问题
IF 2.7 3区 物理与天体物理
Physics-Uspekhi Pub Date : 2023-06-01 DOI: 10.3367/ufne.2023.06.039405
A. N. Azarevich, A. Bogach, S. Gavrilkin, S. Demishev, N. Sluchanko
{"title":"On the issue of detection of Majorana fermions in heat capacity and Hall effect measurements in the Kondo insulator YbB12","authors":"A. N. Azarevich, A. Bogach, S. Gavrilkin, S. Demishev, N. Sluchanko","doi":"10.3367/ufne.2023.06.039405","DOIUrl":"https://doi.org/10.3367/ufne.2023.06.039405","url":null,"abstract":"","PeriodicalId":20068,"journal":{"name":"Physics-Uspekhi","volume":"42 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90037510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Physics news on the Internet: July 2023 互联网物理新闻:2023年7月
3区 物理与天体物理
Physics-Uspekhi Pub Date : 2023-06-01 DOI: 10.3367/ufne.2023.06.039372
Yurii N. Eroshenko
{"title":"Physics news on the Internet: July 2023","authors":"Yurii N. Eroshenko","doi":"10.3367/ufne.2023.06.039372","DOIUrl":"https://doi.org/10.3367/ufne.2023.06.039372","url":null,"abstract":"","PeriodicalId":20068,"journal":{"name":"Physics-Uspekhi","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136161324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Relativistically nonlinear resonant absorption and harmonic generation of electromagnetic radiation in an inhomogeneous plasma 非均匀等离子体中电磁辐射的相对论非线性共振吸收和谐波产生
3区 物理与天体物理
Physics-Uspekhi Pub Date : 2023-06-01 DOI: 10.3367/ufne.2023.06.039410
Igor I. Metelskii, Vladimir F. Kovalev, Valerii Yu. Bychenkov
{"title":"Relativistically nonlinear resonant absorption and harmonic generation of electromagnetic radiation in an inhomogeneous plasma","authors":"Igor I. Metelskii, Vladimir F. Kovalev, Valerii Yu. Bychenkov","doi":"10.3367/ufne.2023.06.039410","DOIUrl":"https://doi.org/10.3367/ufne.2023.06.039410","url":null,"abstract":"","PeriodicalId":20068,"journal":{"name":"Physics-Uspekhi","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136172767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Quantum entanglement, teleportation and randomness: Nobel prize in physics of 2022 量子纠缠、隐形传态和随机性:2022年诺贝尔物理学奖
IF 2.7 3区 物理与天体物理
Physics-Uspekhi Pub Date : 2023-06-01 DOI: 10.3367/ufne.2023.06.039412
A. Fedorov, E. Kiktenko, Kseniya Yu. Khabarova, N. Kolachevsky
{"title":"Quantum entanglement, teleportation and randomness: Nobel prize in physics of 2022","authors":"A. Fedorov, E. Kiktenko, Kseniya Yu. Khabarova, N. Kolachevsky","doi":"10.3367/ufne.2023.06.039412","DOIUrl":"https://doi.org/10.3367/ufne.2023.06.039412","url":null,"abstract":"","PeriodicalId":20068,"journal":{"name":"Physics-Uspekhi","volume":"106 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87884213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Development of laser spectroscopy of spin noise 自旋噪声激光光谱学研究进展
3区 物理与天体物理
Physics-Uspekhi Pub Date : 2023-05-01 DOI: 10.3367/ufne.2023.05.039367
Gleb G. Kozlov, Ivan I. Ryzhov, A.V. Kavokin, V.S. Zapasskii
{"title":"Development of laser spectroscopy of spin noise","authors":"Gleb G. Kozlov, Ivan I. Ryzhov, A.V. Kavokin, V.S. Zapasskii","doi":"10.3367/ufne.2023.05.039367","DOIUrl":"https://doi.org/10.3367/ufne.2023.05.039367","url":null,"abstract":"","PeriodicalId":20068,"journal":{"name":"Physics-Uspekhi","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134992407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Quantum cascade lasers for 8 μm spectral range: technology, design and analysis 8 μm光谱范围的量子级联激光器:技术、设计和分析
3区 物理与天体物理
Physics-Uspekhi Pub Date : 2023-05-01 DOI: 10.3367/ufne.2023.05.039543
Vladislav V. Dudelev, Evgeniia D. Cherotchenko, Ivan I. Vrubel, Dmitry A. Mikhailov, Dmitriy V. Chistyakov, Valentin Yu. Mylnikov, Sergey N. Losev, Elena A. Kognovitskaya, Andrey V. Babichev, Andrey V. Lutetskiy, Sergey O. Slipchenko, Nikita A. Pikhtin, Alexander V. Abramov, Andrey G. Gladyshev, Konstantin A. Podgaetskiy, Andrey Yu. Andreev, Irina V. Yarotskaya, Maksim A. Ladugin, Aleksandr A. Marmalyuk, Innokenty I. Novikov, Vladimir I. Kuchinskii, Leonid Ya. Karachinsky, Anton Yu. Egorov, Grigorii S. Sokolovskii
{"title":"Quantum cascade lasers for 8 μm spectral range: technology, design and analysis","authors":"Vladislav V. Dudelev, Evgeniia D. Cherotchenko, Ivan I. Vrubel, Dmitry A. Mikhailov, Dmitriy V. Chistyakov, Valentin Yu. Mylnikov, Sergey N. Losev, Elena A. Kognovitskaya, Andrey V. Babichev, Andrey V. Lutetskiy, Sergey O. Slipchenko, Nikita A. Pikhtin, Alexander V. Abramov, Andrey G. Gladyshev, Konstantin A. Podgaetskiy, Andrey Yu. Andreev, Irina V. Yarotskaya, Maksim A. Ladugin, Aleksandr A. Marmalyuk, Innokenty I. Novikov, Vladimir I. Kuchinskii, Leonid Ya. Karachinsky, Anton Yu. Egorov, Grigorii S. Sokolovskii","doi":"10.3367/ufne.2023.05.039543","DOIUrl":"https://doi.org/10.3367/ufne.2023.05.039543","url":null,"abstract":"","PeriodicalId":20068,"journal":{"name":"Physics-Uspekhi","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135516186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
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