JETP Letters最新文献_第10页

Jet Quenching for Hadron-Tagged Jets in pA Collisions pA碰撞中强子标记射流的射流淬火

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2024-07-29 DOI: 10.1134/S0021364024602380

B. G. Zakharov

引用次数: 0

On the Exchange-Correlation Energy in DFT Scenarios 关于 DFT 方案中的交换相关能

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2024-07-29 DOI: 10.1134/S0021364024602173

A. Belhaj, S. E. Ennadifi

{"title":"On the Exchange-Correlation Energy in DFT Scenarios","authors":"A. Belhaj, S. E. Ennadifi","doi":"10.1134/S0021364024602173","DOIUrl":"10.1134/S0021364024602173","url":null,"abstract":"Motivated by the considerable importance of material properties in modern condensed matter physics research, and using techniques of the ({{N}_{e}})-electron systems in terms of the electron density ({{n}_{{sigma e}}}left( r right)) needed to obtain the ground-state energy ({{E}_{{e0}}}) in density functional theory scenarios, we approach the exchange-correlation energy ({{E}_{{xc}}}left[ {{{n}_{{sigma e}}}(r)} right]) by considering the interelectronic position corrections (Delta r_{x}^{{ uparrow uparrow , uparrow downarrow }} = ) ({{lambda }_{x}}left| {delta {{r}^{{ uparrow uparrow }}} - delta {{r}^{{ uparrow downarrow }}}} right|) and (Delta r_{c}^{{{{e}_{i}}{{e}_{{j ne i}}}}} = ) ({{lambda }_{c}}{{left| {r - r{kern 1pt} '{kern 1pt} } right|}^{{ - {{{left( {{{N}_{e}} - 1} right)}}^{{ - 1}}}}}}) corresponding to the spin and the Coulomb correlation effects, respectively, through the electron–electron potential energy. Exploiting such corrections, we get approximate expressions for the exchange ({{E}_{x}}left[ {{{n}_{{sigma e}}}} right]) and the correlation ({{E}_{c}}left[ {{{n}_{{sigma e}}}} right]) functional energies which could be interpreted in terms of magnetic and electric dipole potential energies associated with the charge density ({{n}_{{sigma e}}}left( r right)) described by inverse-square potential behaviors. Based on these arguments, we expect that such obtained exchange-correlation functional energy could be considered in the local density approximation functional as an extension to frame such interelectronic effects.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"120 3","pages":"208 - 213"},"PeriodicalIF":1.4,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141866158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Isentropic Compression of Solid CO2 at Megabar Pressures 等熵压缩百万巴压力下的固体二氧化碳

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2024-07-15 DOI: 10.1134/S0021364024601374

V. D. Selemir, V. V. Brazhkin, K. D. Litasov, P. B. Repin, A. S. Korshunov, A. I. Bykov, G. V. Boriskov, N. I. Egorov, Yu. B. Kudasov, I. V. Makarov, D. A. Maslov, V. N. Pavlov, V. V. Platonov, I. S. Strelkov, O. M. Surdin, R. V. Kozabaranov, A. V. Bochkarev, A. A. Agapov, N. A. Belyaeva

{"title":"Isentropic Compression of Solid CO2 at Megabar Pressures","authors":"V. D. Selemir, V. V. Brazhkin, K. D. Litasov, P. B. Repin, A. S. Korshunov, A. I. Bykov, G. V. Boriskov, N. I. Egorov, Yu. B. Kudasov, I. V. Makarov, D. A. Maslov, V. N. Pavlov, V. V. Platonov, I. S. Strelkov, O. M. Surdin, R. V. Kozabaranov, A. V. Bochkarev, A. A. Agapov, N. A. Belyaeva","doi":"10.1134/S0021364024601374","DOIUrl":"10.1134/S0021364024601374","url":null,"abstract":"Experiments on the dynamic isentropic compression of solid CO2 samples by the megabar pressure induced by the superstrong magnetic field of an explosive magnetic generator have been performed with the X-ray diffraction detection of the state of the compressed samples. The generator operation is based on the fast compression of the initial magnetic flux in the cavity of the generator by a conducting cylindrical liner accelerated by the products of the explosion of a cylindrical explosive charge. Two points at pressures of 349 and 459 GPa on the compressibility diagram of CO2 have been determined in the experiments, where the degree of compression ρ/ρ0 of CO2 has reached currently highest values of 3.90 and 4.02, respectively. Comparison has shown that theoretically calculated equations of states for crystal phases of CO2 almost completely reproduce the experimental results, which confirms a high accuracy of theoretical predictions and the identity of the experimental and theoretical equations of states of CO2 modifications stable at high pressures.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"119 11","pages":"860 - 864"},"PeriodicalIF":1.4,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141721656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Single-Photon Emitters inside Bubbles Formed at Homointerfaces between Hexagonal Boron Nitride Layers 六方氮化硼层间同界面气泡内的单光子发射器

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2024-07-15 DOI: 10.1134/S0021364024600976

A. V. Gritsienko, M. V. Pugachev, M. O. Avramchikov, A. G. Vitukhnovsky, A. Yu. Kuntsevich

引用次数: 0

Doping Evolution of the Superconducting Order Parameter of Na(Fe, Co)As Alkali-Metal Pnictides Na(Fe, Co)As 碱金属锑化物超导阶次参数的掺杂演变

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2024-07-15 DOI: 10.1134/S0021364024602008

S. A. Kuzmichev, I. V. Morozov, A. I. Shilov, Ye. O. Rakhmanov, T. E. Kuzmicheva

引用次数: 0

Properties of Shock and Quasi-Isentropically Compressed Krypton in the Pressure Range of up to 2700 GPa 冲击和准等向压缩氪在高达 2700 GPa 压力范围内的特性

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2024-07-15 DOI: 10.1134/S0021364024601465

M. A. Mochalov, R. I. Il’kaev, S. V. Erunov, A. O. Blikov, V. A. Ogorodnikov, S. E. Elfimov, V. A. Arinin, V. A. Komrakov, M. I. Likhutov, I. P. Maksimkin, V. K. Gryaznov, I. L. Iosilevskiy, P. R. Levashov, D. V. Minakov, M. A. Paramonov

{"title":"Properties of Shock and Quasi-Isentropically Compressed Krypton in the Pressure Range of up to 2700 GPa","authors":"M. A. Mochalov, R. I. Il’kaev, S. V. Erunov, A. O. Blikov, V. A. Ogorodnikov, S. E. Elfimov, V. A. Arinin, V. A. Komrakov, M. I. Likhutov, I. P. Maksimkin, V. K. Gryaznov, I. L. Iosilevskiy, P. R. Levashov, D. V. Minakov, M. A. Paramonov","doi":"10.1134/S0021364024601465","DOIUrl":"10.1134/S0021364024601465","url":null,"abstract":"The density of shock-compressed liquid krypton ρ ≈ 9 g/cm3 and the temperature T ≈ 55 000 K on the main Hugoniot adiabat in the pressure range of Р ≈ 140–255 GPa have been measured with hemispherical shock wave generators. Using spherical devices, gaseous krypton has been compressed to the density ρ ≈ 20 g/cm3 by the pressure Р ≈ 2700 GPa at the temperature T ≈ 120 000 K. The experiment has been carried out at the X-ray diffraction complex RGK-B-L (Russian Federal Nuclear Center All-Russian Scientific Research Institute of Experimental Physics) consisting of BIM 234.3000 betatrons with a boundary energy of 60 MeV used in the multipulse bremsstrahlung generation regime with a multichannel optoelectronic detection system for X-ray images. The designs of the experimental devices have been described, and the thermodynamic parameters of the krypton plasma reached in these devices have been estimated. The obtained data have been analyzed and compared to previously reported data. The compression of krypton to the density ρ ≈ 20 g/cm3 by the pressure Р ≈ 2700 GPa is currently a record achievement.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"119 11","pages":"885 - 896"},"PeriodicalIF":1.4,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141721626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Anisotropic Exchange Interactions in a Ferromagnet PbMnBO4 铁磁体 PbMnBO4 中的各向异性交换相互作用

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2024-07-15 DOI: 10.1134/S0021364024600812

S. N. Martynov

引用次数: 0

Test of the Model of “Running Axial Mass” Using NOvA Near Detector Data on Muon Neutrino Scattering on Nuclei 利用 NOvA 近探测器关于μ介子中微子在核上散射的数据检验 "运行轴质量 "模型

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2024-07-15 DOI: 10.1134/S0021364024601271

I. D. Kakorin, V. A. Naumov, O. B. Samoylov

引用次数: 0

Pressurized Phase Transitions Cascade in BaMn2P2 and BaMn2As2 BaMn2P2 和 BaMn2As2 中的加压级联相变

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2024-07-15 DOI: 10.1134/S002136402460201X

N. S. Pavlov, I. R. Shein, I. A. Nekrasov

引用次数: 0

Phase Transition near the Filling Factor ν = 3 填充因子 ν = 3 附近的相变

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2024-07-15 DOI: 10.1134/S002136402460085X

A. V. Shchepetilnikov, G. A. Nikolaev, S. A. Andreeva, A. R. Khisameeva, Ya. V. Fedotova, A. A. Dremin, I. V. Kukushkin

{"title":"Phase Transition near the Filling Factor ν = 3","authors":"A. V. Shchepetilnikov, G. A. Nikolaev, S. A. Andreeva, A. R. Khisameeva, Ya. V. Fedotova, A. A. Dremin, I. V. Kukushkin","doi":"10.1134/S002136402460085X","DOIUrl":"10.1134/S002136402460085X","url":null,"abstract":"A phase transition accompanied by the appearance of a spike in the longitudinal resistance of a two-dimensional electron system has been studied using the electron spin resonance near the filling factor ν = 3 in the ZnO/MgZnO heterojunction. This transition occurs when the tilt angle θ of the magnetic field is increased to some critical value θc. An analysis of the spin resonance amplitude has made it possible to demonstrate the spin nature of this phenomenon. For example, the ground state of the system on both sides of the transition has a nonzero spin polarization, which changes by several times when the phase of the system is changed. Strong spin resonance is observed both at θ < θc and at θ > θc. Surprisingly, the spin resonance at the critical angle θc has been detected in only one phase, which lies in the region of magnetic fields below the critical field Bc corresponding to the spike position in the longitudinal resistance. An increase in the magnetic field to this value leads to a decrease in the resonance amplitude and an increase in the resonance width. In the field region above Bc, the spin resonance disappears completely. Such behavior of the spin resonance is most likely due to the formation of domains with different spin polarizations in the electron system.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"119 11","pages":"873 - 878"},"PeriodicalIF":1.4,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S002136402460085X.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141721654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

引用次数: 0