Journal of Low Temperature Physics最新文献_第5页

Cross-Coupling First-Order Gradient Superconducting Quantum Interference Device for Current Sensing 用于电流感应的交叉耦合一阶梯度超导量子干涉装置

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-07-04 DOI: 10.1007/s10909-024-03182-2

Qing Chen, Qing Zhong, Wei Li, Wenhui Cao, Jinjin Li, Jianting Zhao, Da Xu

{"title":"Cross-Coupling First-Order Gradient Superconducting Quantum Interference Device for Current Sensing","authors":"Qing Chen, Qing Zhong, Wei Li, Wenhui Cao, Jinjin Li, Jianting Zhao, Da Xu","doi":"10.1007/s10909-024-03182-2","DOIUrl":"10.1007/s10909-024-03182-2","url":null,"abstract":"<div>High sensitivity and low noise of superconducting quantum interference devices make them ideal for reading the minute changes in resistance of a transition-edge sensor, which occurs when it absorbs energy or power. A series of first-order gradient, cross-coupling octagonal SQUIDs specifically tailored for use in TES were developed and fabricated for the advantage of lower parasitic capacitance compared with the overlap-coupling ones. It is obtained that a lower screening parameter and increased shunt resistance per junction lead to a higher flux-to-voltage transfer coefficient. This enhancement significantly boosts detection sensitivity and effectively minimizes noise contributions from electronics operating at room temperature. The low-temperature measurement results of the sample with an input coil of 3.5 turns indicate that a small device current white noise of 4.8 pA/√Hz, a device flux white noise of 1.1 μΦ0/√Hz, and an optimal flux-to-voltage transfer coefficient of 338.2 μV/Φ0 are achieved. The bandwidth of a SQUID current sensor with a smaller inductance of the input coil and a larger shunt resistance exceeds 10 MHz. SQUID current sensors, featuring octagonal structures with the first-order gradient cross-coupling, exhibit low flux noise, low current noise, and a high flux-to-voltage transfer coefficient, which can satisfy the requirements of TES applications.</div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141548527","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 Working Temperature of Erbium Orthophosphate ErPO4 with Large Magnetocaloric Effect 具有大磁致效应的正磷酸铒 ErPO4 的低工作温度

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-07-04 DOI: 10.1007/s10909-024-03183-1

Assaad Elouafi, Sara Ezairi, Fatima Lmai, Abdeslam Tizliouine

引用次数: 0

Study of the Magnetocaloric Effect and Critical Behavior in Double Perovskite Manganese Oxides Pr1.5A0.5Mn2O6 (A = Mg, Ba) 双包晶锰氧化物 Pr1.5A0.5Mn2O6 (A = Mg, Ba) 中的磁ocaloric 效应和临界行为研究

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-07-02 DOI: 10.1007/s10909-024-03184-0

Huiqin Yun, Ze Li, Xiang Jin, Jianjun Zhao, Jingshun Liu

{"title":"Study of the Magnetocaloric Effect and Critical Behavior in Double Perovskite Manganese Oxides Pr1.5A0.5Mn2O6 (A = Mg, Ba)","authors":"Huiqin Yun, Ze Li, Xiang Jin, Jianjun Zhao, Jingshun Liu","doi":"10.1007/s10909-024-03184-0","DOIUrl":"10.1007/s10909-024-03184-0","url":null,"abstract":"<div>In this study, polycrystalline samples of Pr2Mn2O6 (parent phase) and Pr1.5A0.5Mn2O6 (A = Mg, Ba) were prepared using the high-temperature solid-phase reaction method. The effects of Mg and Ba doping on magnetocaloric properties and critical behavior of the parent phase were systematically investigated. Under a magnetic field of 7 T, the relative cooling power (RCP) values of Pr2Mn2O6, Pr1.5Mg0.5Mn2O6, and Pr1.5Ba0.5Mn2O6 were approximately 483.46 J·kg−1, 428.22 J·kg−1, and 479.88 J·kg−1, respectively. The critical behavior analysis revealed that the parent phase showed short-range exchange interactions, while Pr1.5A0.5Mn2O6 (A = Mg, Ba) exhibited long-range exchange interactions. The temperature dependence of the order parameter n was studied under different magnetic fields, confirming the phase transition types and validating the accuracy of the critical exponents obtained. The research findings suggest that both the parent phase and Ba-doped ceramics at the A-site hold promise as magnetic refrigeration materials.</div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141522835","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

Correction: Thermal Model Improvement in Phonon Detection Channels Using a Scintillating Crystal 更正：使用闪烁晶体改进声子探测通道中的热模型

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-07-01 DOI: 10.1007/s10909-024-03172-4

K. R. Woo, J. S. Chung, D. Hwang, J. Jeon, H. B. Kim, H. J. Kim, H. Kim, M. B. Kim, Y. Kim, Y. M. Kim, D. Kwon, D. Y. Lee, S. H. Lee, Y. C. Lee, H. Lim

引用次数: 0

Design Considerations for the Optimization of $$lambda$$ -SQUIDs 优化 $$lambda$$ -SQUID 的设计考虑因素

IF 2 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-07-01 DOI: 10.1007/s10909-024-03180-4

Constantin Schuster, Sebastian Kempf

引用次数: 0

Improving Amplification Bandwidth by Combining Josephson Parametric Amplifiers for Active Axion Search Experiments at IBS/CAPP 通过组合约瑟夫森参量放大器提高放大带宽，用于在 IBS/CAPP 进行主动式轴心搜索实验

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-07-01 DOI: 10.1007/s10909-024-03090-5

Sergey V. Uchaikin, Jinmyeong Kim, Boris I. Ivanov, Arjan F. van Loo, Yasunobu Nakamura, Saebyeok Ahn, Seonjeong Oh, Seongtae Park, Andrei Matlashov, Woohyun Chung, Yannis K. Semertzidis

{"title":"Improving Amplification Bandwidth by Combining Josephson Parametric Amplifiers for Active Axion Search Experiments at IBS/CAPP","authors":"Sergey V. Uchaikin, Jinmyeong Kim, Boris I. Ivanov, Arjan F. van Loo, Yasunobu Nakamura, Saebyeok Ahn, Seonjeong Oh, Seongtae Park, Andrei Matlashov, Woohyun Chung, Yannis K. Semertzidis","doi":"10.1007/s10909-024-03090-5","DOIUrl":"10.1007/s10909-024-03090-5","url":null,"abstract":"<div>The Center for Axion and Precision Physics Research at the Institute for Basic Science in Republic of Korea is home to multiple active axion search experiments using cavity haloscopes that operate within the frequency range of 1–6 GHz. The haloscopes convert axions to photons, resulting in an output power of about 10({^{-24}})–10({^{-22}}) W. To detect such a small signal amidst noise, quantum-limited noise amplifiers and ultra-low-temperature environment (a few tenths of mK) are required for all critical readout components to minimize noise from all active and passive lossy components. Our primary objective is to achieve the highest possible scanning-frequency speed, which includes the time for maintenance and system calibration. This paper presents the development and operation of low-noise amplifiers for haloscope experiments targeting different frequency ranges and provides design, operational, and performance details of the amplifiers.</div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10909-024-03090-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141501209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Charge Motion in Solid Helium 固体氦中的电荷运动

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-06-27 DOI: 10.1007/s10909-024-03160-8

A. I. Golov, V. B. Efimov, A. A. Levchenko, L. P. Mezhov-Deglin

{"title":"Charge Motion in Solid Helium","authors":"A. I. Golov, V. B. Efimov, A. A. Levchenko, L. P. Mezhov-Deglin","doi":"10.1007/s10909-024-03160-8","DOIUrl":"10.1007/s10909-024-03160-8","url":null,"abstract":"<div>We overview and discuss several advances in the understanding of the motion of ions through solid helium. Positive and negative ions in solid helium are microscopic complexes with internal structures embedded into the host crystal lattice. Their low-field mobilities normally decrease with cooling in both bcc and hcp crystals of either isotope of helium ((^3)He and (^4)He). Depending on the density of solid helium (as well as, in the case of positive ions in hcp (^4)He, on the crystal orientation), the corresponding activation energies for the mobility of the two species of ions may or may not coincide, and they are found to be typically either equal to or about twice the vacancy creation energy. In strong electric fields, the field dependence of the drift velocity of ions is often nonlinear but monotonic. However, for positive ions in hcp (^4)He, non-monotonic anomalies in both temperature and field dependences of the drift velocity were observed. We discuss these features within the framework of the theory of ion motion via inelastic scattering of low-energy vacancions put forward by Alexander Andreev and co-workers.</div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10909-024-03160-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141501208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

P-wave Pairing Near a Spin-Split Josephson Junction 自旋分裂约瑟夫森结附近的 P 波配对

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-06-25 DOI: 10.1007/s10909-024-03176-0

Rubén Seoane Souto, Dushko Kuzmanovski, Ignacio Sardinero, Pablo Burset, Alexander V. Balatsky

{"title":"P-wave Pairing Near a Spin-Split Josephson Junction","authors":"Rubén Seoane Souto, Dushko Kuzmanovski, Ignacio Sardinero, Pablo Burset, Alexander V. Balatsky","doi":"10.1007/s10909-024-03176-0","DOIUrl":"10.1007/s10909-024-03176-0","url":null,"abstract":"<div>Superconductivity and magnetism are competing effects that can coexist in certain regimes. Their co-existence leads to unexpected new behaviors that include the onset of exotic electron pair mechanisms and topological phases. In this work, we study the properties of a Josephson junction between two spin-split superconductors. The spin-splitting in the superconductors can arise from either the coupling to a ferromagnetic material or an external magnetic field. The properties of the junction are dominated by the Andreev bound states that are also split. One of these states can cross the superconductor’s Fermi level, leading to a ground-state transition characterized by a suppressed supercurrent. We interpret the supercurrent blockade as coming from a dominance of p-wave pairing close to the junction, where the electrons are at both sides. To support this interpretation, we analyze the different pairing channels and show that p-wave pairing is favored in the case where the magnetization of the two superconductors is parallel and suppressed in the anti-parallel case. We also analyze the noise spectrum that shows signatures of the ground-state transition in the form of an elevated zero-frequency noise.</div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10909-024-03176-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141501211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Effects of Substrate Corrugation During Helium Adsorption on Graphene in the Grand Canonical Ensemble 大规范组合中石墨烯吸附氦气过程中基底波纹的影响

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-06-25 DOI: 10.1007/s10909-024-03156-4

Gage Erwin, Adrian Del Maestro

引用次数: 0

Correction: Directional Filter Design and Simulation for Superconducting On-Chip Filter-Banks 更正：超导片上滤波器组的定向滤波器设计与仿真

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-06-25 DOI: 10.1007/s10909-024-03162-6

Louis H. Marting, Kenichi Karatsu, Akira Endo, Jochem J. A. Baselmans, Alejandro Pascual Laguna

引用次数: 0