发布求助
文献互助 智能选刊 最新文献

Journal of Experimental and Theoretical Physics最新文献

筛选
英文 中文
Planar Defects as a Way to Account for Explicit Anharmonicity in High Temperature Thermodynamic Properties of Silicon 平面缺陷作为硅高温热力学性质显式非调和性的一种解释方法
IF 1.1 4区 物理与天体物理
Journal of Experimental and Theoretical Physics Pub Date : 2023-10-26 DOI: 10.1134/S1063776123090091
M. V. Kondrin, Y. B. Lebed, V. V. Brazhkin
{"title":"Planar Defects as a Way to Account for Explicit Anharmonicity in High Temperature Thermodynamic Properties of Silicon","authors":"M. V. Kondrin,&nbsp;Y. B. Lebed,&nbsp;V. V. Brazhkin","doi":"10.1134/S1063776123090091","DOIUrl":"10.1134/S1063776123090091","url":null,"abstract":"<p>Silicon is indispensable in semiconductor industry. Understanding its high-temperature thermodynamic properties is essential both for theory and applications. However, first-principle description of high-temperature thermodynamic properties of silicon (thermal expansion coefficient and specific heat) is still incomplete. Strong deviation of its specific heat at high temperatures from the Dulong–Petit law suggests substantial contribution of anharmonicity effects. We demonstrate, that anharmonicity is mostly due to two transverse phonon modes, propagating in (111) and (100) directions, and can be quantitatively described with formation of the certain type of nanostructured planar defects of the crystal structure. Calculation of these defects' formation energy enabled us to determine their input into the specific heat and thermal expansion coefficient. This contribution turns out to be significantly greater than the one calculated in quasi-harmonic approximation.</p>","PeriodicalId":629,"journal":{"name":"Journal of Experimental and Theoretical Physics","volume":"137 3","pages":"342 - 349"},"PeriodicalIF":1.1,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71910745","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
Vortex Dynamics in Superconducting MoN Strip with a Side Cut 带侧切的超导MoN带中的涡旋动力学
IF 1.1 4区 物理与天体物理
Journal of Experimental and Theoretical Physics Pub Date : 2023-10-26 DOI: 10.1134/S1063776123090169
S. S. Ustavshchikov, M. Yu. Levichev, I. Yu. Pashen’kin, N. S. Gusev, S. A. Gusev, D. Yu. Vodolazov
{"title":"Vortex Dynamics in Superconducting MoN Strip with a Side Cut","authors":"S. S. Ustavshchikov,&nbsp;M. Yu. Levichev,&nbsp;I. Yu. Pashen’kin,&nbsp;N. S. Gusev,&nbsp;S. A. Gusev,&nbsp;D. Yu. Vodolazov","doi":"10.1134/S1063776123090169","DOIUrl":"10.1134/S1063776123090169","url":null,"abstract":"<p>Transport characteristics of superconducting MoN strips with a single side cut near one of the superconductor edges in zero and weak magnetic fields are studied experimentally and theoretically. The presence of the cut makes it possible to observe regimes with one and several simultaneously moving Abrikosov vortices, the number of which is controlled by the value of the applied current. A change in the number of vortices is accompanied with the emergence of a “kink” on the current–voltage characteristic, which can be clearly distinguished in the dependence of the differential resistance on the current. This makes it possible to find average velocity <span>({bar {v}})</span> of vortices (including a single vortex) and the current/voltage ranges with the known number of moving vortices. The vortex velocity determined in this way for our superconducting strips turns out to be weakly depending on the current and is close to maximal value <span>({{{bar {v}}}_{{max }}})</span> ≈ 3 km/s, for which a superconductor transition to the normal state occurs. The maximal velocity value is comparable with the known values for superconductors of types Nb, NbN as well as, and YBCO, but is several times smaller than for superconductors of types MoSi, NbC, and Pb. The fact that difference in the maximal velocities of vortices is associated with different times of variation of the superconducting order parameter magnitude in different superconducting materials is considered.</p>","PeriodicalId":629,"journal":{"name":"Journal of Experimental and Theoretical Physics","volume":"137 3","pages":"372 - 383"},"PeriodicalIF":1.1,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71910748","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: 2
On the Exact Solution for a Luttinger Liquid with Repulsion and a Single Point Impurity 具有排斥和单点杂质的Luttinger液体的精确解
IF 1.1 4区 物理与天体物理
Journal of Experimental and Theoretical Physics Pub Date : 2023-10-26 DOI: 10.1134/S1063776123090017
V. V. Afonin, V. Yu. Petrov
{"title":"On the Exact Solution for a Luttinger Liquid with Repulsion and a Single Point Impurity","authors":"V. V. Afonin,&nbsp;V. Yu. Petrov","doi":"10.1134/S1063776123090017","DOIUrl":"10.1134/S1063776123090017","url":null,"abstract":"<p>The expression for the conductance of a 1D channel, which has been obtained using the well-known exact solution, is analyzed. It is shown that in the case of strong electron—electron interaction, the slowest (linear in frequency) asymptotics of the conductance is determined by the behavior of electron—electron interaction in the region of transition from 1D to 3D motion realized near the impurity.</p>","PeriodicalId":629,"journal":{"name":"Journal of Experimental and Theoretical Physics","volume":"137 3","pages":"384 - 394"},"PeriodicalIF":1.1,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71910843","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
On the Possibility of Controlling the Second Harmonic Radiation of the Free Electron Laser Using the Second Harmonic of the Undulator Field 利用波动场的二次谐波控制自由电子激光器二次谐波辐射的可能性
IF 1.1 4区 物理与天体物理
Journal of Experimental and Theoretical Physics Pub Date : 2023-10-26 DOI: 10.1134/S1063776123090078
K. V. Zhukovsky
{"title":"On the Possibility of Controlling the Second Harmonic Radiation of the Free Electron Laser Using the Second Harmonic of the Undulator Field","authors":"K. V. Zhukovsky","doi":"10.1134/S1063776123090078","DOIUrl":"10.1134/S1063776123090078","url":null,"abstract":"<p>The second harmonic radiation of a single-pass free electron laser (FEL) and its dependence on the second harmonic of the undulator field are investigated. In analysis of properties of materials, the nonlinear generation of the second harmonic as a response to radiation is an important effect. In this context, the second harmonic generation of the radiation source (FEL) is undesirable since it masks the signal being analyzed. Conversely, in other cases, the second harmonic radiation of the FEL can be useful as radiation with a higher frequency. We investigate the possibility of suppression (or, conversely, enhancement) of the FEL second harmonic power depending on the phase and strength of the second harmonic of the FEL undulator field. The proposed approach is independent in principle of the radiation frequency. We consider examples of LCLS and PAL-XFEL in the X-ray range and SPARC and LEUTL in the visible range. The more effective influence of the undulator field harmonic in operation with narrow electron beams is demonstrated.</p>","PeriodicalId":629,"journal":{"name":"Journal of Experimental and Theoretical Physics","volume":"137 3","pages":"271 - 282"},"PeriodicalIF":1.1,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71910791","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
Satellites of the Dipole-Forbidden Transitions to the Low-Lying 2S1/2 and 2D3/2,5/2 Excited States of K, Rb, and Cs Atoms in the Spectra of Gas-Phase Mixtures with CF4 含CF4气相混合物光谱中K、Rb和Cs原子向低位2S1/2和2D3/2,5/2激发态的偶极禁止跃迁的卫星
IF 1.1 4区 物理与天体物理
Journal of Experimental and Theoretical Physics Pub Date : 2023-10-26 DOI: 10.1134/S1063776123090029
V. A. Alekseev, T. A. Vartanyan, A. S. Pazgalev, P. Yu. Serdobintsev
{"title":"Satellites of the Dipole-Forbidden Transitions to the Low-Lying 2S1/2 and 2D3/2,5/2 Excited States of K, Rb, and Cs Atoms in the Spectra of Gas-Phase Mixtures with CF4","authors":"V. A. Alekseev,&nbsp;T. A. Vartanyan,&nbsp;A. S. Pazgalev,&nbsp;P. Yu. Serdobintsev","doi":"10.1134/S1063776123090029","DOIUrl":"10.1134/S1063776123090029","url":null,"abstract":"<p>The luminescence excitation spectra of the <i>D</i><sub>1</sub> resonance line of atoms K, Rb, and Cs in gas mixtures with CF<sub>4</sub> are found to contain satellite transitions, which correspond to the transition of an atom to the states (<i>n</i> – 1)<i>d</i> <sup>2</sup><i>D</i><sub>3/2,5/2</sub> and (<i>n</i> + 1)<i>s</i> <sup>2</sup><i>S</i><sub>1/2</sub>, where <i>n</i> = 4, 5, and 6 for K, Rb, and Cs, respectively, with the simultaneous excitation of CF<sub>4</sub> molecule vibrations at the IR active mode frequency ν<sub>3</sub> with a quantum energy of 1283 cm<sup>–1</sup>. These satellite transitions are A(<i>ns</i> <sup>2</sup><i>S</i><sub>1/2</sub>) + CF<sub>4</sub>(ν<sub>3</sub> = 0) + <i>h</i>ν → A((<i>n</i> – 1)<i>d</i> <sup>2</sup><i>D</i><sub>3/2,5/2</sub>) + CF<sub>4</sub>(ν<sub>3</sub> = 1) and A(<i>ns</i> <sup>2</sup><i>S</i><sub>1/2</sub>) + CF<sub>4</sub>(ν<sub>3</sub> = 0) + <i>h</i>ν → A((<i>n</i> + 1)<i>s</i> <sup>2</sup><i>S</i><sub>1/2</sub>) + CF<sub>4</sub>(ν<sub>3</sub> = 1), where A = K, Rb, and Cs. The appearance of an optical coupling between the upper and lower states of these asymptotically (at <span>({{R}_{{{text{A}} - {text{C}}{{{text{F}}}_{4}}}}})</span> → ∞) forbidden transitions is shown to be caused by the interaction of the dipole moment of the ν<sub>3</sub> = 1 ↔ ν<sub>3</sub> = 0 vibrational transition in the CF<sub>4</sub> molecule with the dipole moments of the electronic transitions <i>np</i> <sup>2</sup><i>P</i><sub>1/2,3/2</sub> ↔ (<i>n</i> – 1)<i>d</i> <sup>2</sup><i>D</i><sub>3/2,5/2</sub> and <i>np</i> <sup>2</sup><i>P</i><sub>1/2,3/2</sub> ↔ (<i>n</i> + 1)<i>s</i> <sup>2</sup><i>S</i><sub>1/2</sub> in an alkali metal atom; as a result of this interaction, the upper state of the satellite transition acquires admixtures of the A(<i>np</i> <sup>2</sup><i>P</i><sub>1/2,3/2</sub>)CF<sub>4</sub>(ν<sub>3</sub> = 0) resonance states.</p>","PeriodicalId":629,"journal":{"name":"Journal of Experimental and Theoretical Physics","volume":"137 3","pages":"283 - 293"},"PeriodicalIF":1.1,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71910792","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
Magnetostatic Mechanism of Chiral Symmetry Breaking in Multilayer Magnetic Structures 多层磁结构中手性对称破缺的磁静力机制
IF 1.1 4区 物理与天体物理
Journal of Experimental and Theoretical Physics Pub Date : 2023-10-01 DOI: 10.1134/S1063776123100187
M. A. Kuznetsov, A. A. Fraerman
{"title":"Magnetostatic Mechanism of Chiral Symmetry Breaking in Multilayer Magnetic Structures","authors":"M. A. Kuznetsov, A. A. Fraerman","doi":"10.1134/S1063776123100187","DOIUrl":"https://doi.org/10.1134/S1063776123100187","url":null,"abstract":"","PeriodicalId":629,"journal":{"name":"Journal of Experimental and Theoretical Physics","volume":"3 1","pages":"442 - 452"},"PeriodicalIF":1.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139329164","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
Magnetooptical Kerr Spectroscopy of Nanocomposites 纳米复合材料的磁光克尔光谱学
IF 1.1 4区 物理与天体物理
Journal of Experimental and Theoretical Physics Pub Date : 2023-10-01 DOI: 10.1134/S1063776123100151
E. Gan’shina, V. Garshin, N. Perova, I. M. Pripechenkov, A. Yurasov, M. Yashin, V. V. Rylkov, A. Granovskiǐ
{"title":"Magnetooptical Kerr Spectroscopy of Nanocomposites","authors":"E. Gan’shina, V. Garshin, N. Perova, I. M. Pripechenkov, A. Yurasov, M. Yashin, V. V. Rylkov, A. Granovskiǐ","doi":"10.1134/S1063776123100151","DOIUrl":"https://doi.org/10.1134/S1063776123100151","url":null,"abstract":"","PeriodicalId":629,"journal":{"name":"Journal of Experimental and Theoretical Physics","volume":"2021 1","pages":"572-581"},"PeriodicalIF":1.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139330983","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
Anisotropy Stabilized Magnetic Phases of the Triangular Antiferromagnet RbFe(MoO4)2 三角形反铁磁体 RbFe(MoO4)2 的各向异性稳定磁相
IF 1.1 4区 物理与天体物理
Journal of Experimental and Theoretical Physics Pub Date : 2023-10-01 DOI: 10.1134/S1063776123100102
Y. A. Sakhratov, L. Svistov, A. Reyes
{"title":"Anisotropy Stabilized Magnetic Phases of the Triangular Antiferromagnet RbFe(MoO4)2","authors":"Y. A. Sakhratov, L. Svistov, A. Reyes","doi":"10.1134/S1063776123100102","DOIUrl":"https://doi.org/10.1134/S1063776123100102","url":null,"abstract":"","PeriodicalId":629,"journal":{"name":"Journal of Experimental and Theoretical Physics","volume":"28 1","pages":"526 - 532"},"PeriodicalIF":1.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139326086","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
Fine Structure of Fe2+ Multiplets, Magnetic Anisotropy, and Interrelation between Magnetic and Electric Structures in Fe2Mo3O8 Fe2Mo3O8 中 Fe2+ 复数的精细结构、磁各向异性以及磁结构与电结构之间的相互关系
IF 1.1 4区 物理与天体物理
Journal of Experimental and Theoretical Physics Pub Date : 2023-10-01 DOI: 10.1134/S106377612310014X
M. V. Eremin, K. Vasin, A. R. Nurmukhametov
{"title":"Fine Structure of Fe2+ Multiplets, Magnetic Anisotropy, and Interrelation between Magnetic and Electric Structures in Fe2Mo3O8","authors":"M. V. Eremin, K. Vasin, A. R. Nurmukhametov","doi":"10.1134/S106377612310014X","DOIUrl":"https://doi.org/10.1134/S106377612310014X","url":null,"abstract":"","PeriodicalId":629,"journal":{"name":"Journal of Experimental and Theoretical Physics","volume":"48 1","pages":"506 - 519"},"PeriodicalIF":1.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139325287","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
Phonons, Magnons, and Excitons in the Noncentrosymmetric Magnetoelectric Antiferromagnet CuB_2O_4 非新对称磁电反铁磁体 CuB_2O_4 中的声子、磁子和激子
IF 1.1 4区 物理与天体物理
Journal of Experimental and Theoretical Physics Pub Date : 2023-10-01 DOI: 10.1134/S1063776123100072
R. Pisarev, R. M. Dubrovin
{"title":"Phonons, Magnons, and Excitons in the Noncentrosymmetric Magnetoelectric Antiferromagnet CuB_2O_4","authors":"R. Pisarev, R. M. Dubrovin","doi":"10.1134/S1063776123100072","DOIUrl":"https://doi.org/10.1134/S1063776123100072","url":null,"abstract":"","PeriodicalId":629,"journal":{"name":"Journal of Experimental and Theoretical Physics","volume":"5 1","pages":"582-602"},"PeriodicalIF":1.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139326750","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信