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Feasibility study of X-ray image recognition technique using artificial intelligence for detection of plant and animal quarantine J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-18 Byung-Gun Park, Gi Doo Kang, Cheol Hong Im, Dong Jin Seo, Wan Seok Oh, Yoonho Na
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Ab initio potential energy surfaces calculation via restricted Hartree–Fock for molecular dynamics simulation: a comprehensive review J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-18 Jinhyung Park, Jong-Hyun Jung, Kwang-Woo Jung, Hui-Jeong Gwon
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Thermoelectric performance of famatinites double-doped with Ge and In J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-18 Bong-Ki Hong, Hui Su Yun, Il-Ho Kim
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A novel approach to quality assurance of radiation treatments with a visual interface of GEANT4 for Varian TrueBeam STx J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-15 Oguzhan Ayrancioglu, Kadir Akgungor
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Effect of electrode materials and fabrication methods on resistive switching behavior of poly(3-hexylthiophene-2,5-diyl)-based resistive random access memory J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-15 Ha Yeon Nam, Dong Hyeon Ha, Mehr Khalid Rahmani, Sobia Ali Khan, Joong Hyeon Park, Moon Hee Kang
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Influence of ionization distribution on 3D multicellular model using Geant4-DNA J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-08 Eunae Choi, Kwon Su Chon, Jaeman Son
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Nanoscale mechanical probing of ferroic materials J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-08 Yooun Heo
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Hakite: solid-state synthesis and thermoelectric performance J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-05 Sang Jun Park, Il-Ho Kim
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KPLO gamma-ray spectrometer (KGRS) data processing with Python J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-05 Suyeon Kim, Kyeong Ja Kim
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Enhanced thermoelectric performance of famatinite double-doped with Ge and Se J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-05
Abstract Famatinite (Cu3SbS4) is a promising thermoelectric material with narrow bandgap. However, because its intrinsic carrier (hole) concentration is low, its electrical conductivity is low; thus, doping (partial substitution) is necessary to improve its thermoelectric performance. In this study, Cu3Sb1–xGexS4–ySey (x = 0.04–0.06 and y = 0.25–0.50) famatinite compounds double-doped with Ge and Se
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Optimization of search window and mask size for non-local means noise reduction algorithm in chest digital tomosynthesis: a phantom study J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-04
Abstract Among the parameters of non-local means (NLM) noise reduction algorithm, the search window and mask size have a great influence on the quality of diagnostic medical images. In this study, we aim to optimize the NLM noise reduction algorithm in the chest digital tomosynthesis (CDT) system. The parameters of the NLM algorithm were set to a search window of 11 × 11 to 101 × 101 and a mask size
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Zero-permutation jet-parton assignment using a self-attention network J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-04 Jason S. H. Lee, Inkyu Park, Ian J. Watson, Seungjin Yang
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Study on the effect of inter-channel phase error in coherent beam combining of laser J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-01 Jaedeok Park, Sungmin Park, Dongwon Choi, Dong-Il Yeom, Bong-Ahn Yu
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Optical properties of LaFeO3 films studied using spectroscopic ellipsometry J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-01 Jae Jun Lee, Da Hee Kim, Eun Ji Kim, Hosun Lee
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Magnetic and electrical property study on La-diluted Kondo lattice CeIn3 J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-03-01 Chan-Koo Park, Sungmin Park, Harim Jang, Tae Beom Park, In Cheol Kim, S. Shin, Taehee Lee, T. Fennell, U. Stuhr, M. Kenzelmann, Hanoh Lee, Tuson Park
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An automated quality assurance system with deep learning for small cube-ball phantom localization in noisy megavoltage images J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-27 Min-Jae Park, Gyemin Lee, Jungwon Kwak, Chiyoung Jeong, YoungMoon Goh, Sung-woo Kim, Byung-Chul Cho, Si Yeol Song, Jong Hoon Kim, Jinhong Jung, Young Seob Shin, Jungsu Oh
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Impact of magnetic field on dust and ion-acoustic solitary profile in dusty plasma J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-26 M. Himel Azad, M. Masum Haider, Obaydur Rahman
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Extensive thermal-range simulation study of interface traps and oxide charges in an oxide-optimized MOS-capacitive radiation sensor for space applications J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-26
Abstract The present work investigates the performance of a simple capacitive radiation sensor under extreme thermal conditions. The sensor chosen is optimized for SCL 180 nm CMOS technology and offers an appreciable sensitivity over a broad range of ionizing radiations. It can be easily manufactured using conventional CMOS process. All the device-level simulations have been done using Cogenda Visual
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Design of a depth-encoding detector using 2 mm scintillator block and light guides with different reflector patterns for each layer: a simulation study J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-26 Seung-Jae Lee, Byungdu Jo, Cheol-Ha Baek
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Experimental quantification of the impact of edge and SOL biasing on blob characteristics in the IR-T1 tokamak J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-26 M. Lafouti, M. Mahjour
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Zero-temperature magnetic phase diagram for the frustrated antiferromagnet gadolinium gallium garnet J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-26 Mark Ancliff, Vasily Sachnev
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Monte Carlo simulation and practical investigation of body organs activation by Am–Be neutron source J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-26 Ali Nouraddini-Shahabadi, Mohammad Reza Rezaie, Yassin Hiedarizadeh, Saeed Mohammadi
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Elaboration of the recently created SiPPyAg architecture grounded in semiconductor J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-26 Farida Touri, Brahim Khaniche, Khemissi Yahiaoui
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Probing electron dwell time in quantum dots through pulsed conductance analysis J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-22
Abstract The charge detection in the quantum dot is non-reproducible when measurements are repeated for the closed quantum dot. To investigate the origin of the non-reproducibility, the correlation between the electron dwell time and the non-reproducibility is studied. The electron dwell time is measured using real-time conductance measurement. The changes in conductance caused by electron tunneling
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Long-term analysis of 14CO2 measurement using mid-IR cavity ring-down spectroscopy for nuclear power plants J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-22 Byung Jae Chun, Kwang-Hoon Ko, Seung-Kyu Park, Lim Lee, Do-Young Jeong
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Effects of crystal orientation, substrate type, and substrate temperature on residual stress of AlN thin films deposited by different deposition methods J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-22
Abstract Aluminum nitride thin film can be applied as a high-temperature material because of its excellent heat resistance and thermal conductivity, and high mechanical strength. In addition, application and application to surface acoustic wave devices using piezoelectric properties are expected, and it is known as a material that can replace ZnO. To obtain excellent crystal orientation, the residual
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The influence of human activity on regional radiocarbon characteristics using accelerator mass spectrometry during the COVID-19 period J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-22 Seung-Won Lee, Sae-Hoon Park, Yu-Seok Kim
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Reduction in surface adhesion on Ni enabled by micro- and nanoscale periodic structuring in tandem J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-21 Wajahat Hussain, Hyejee Choi, Shinhui Kim, Yeong Jun Kim, Taek Yong Hwang, Jongweon Cho
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Development and evaluation of quality assurance phantom for stereotactic radiosurgery J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-21 Soah Park, Jai-Woong Yoon, Me young Kim, Kwang-Ho Cheong, Sei-Kwon Kang, Kyoung Ju Kim
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Quasi-one-dimensional transport in graphene under a magnetic field J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-21 Minsoo Kim
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Hole induced half-metallic 2H VSe2 thin film with high Curie temperature and optical transparency J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-21 Ganie Suhail Ahmad, Jisang Hong
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Performance evaluation of improved median-modified Wiener filter with segmentation method to improve resolution in computed tomographic images J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-21 Juyoung Park, Seyoung Song, Seong-Hyeon Kang, Youngjin Lee
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Effect of network architectures in multi-agent reinforcement learning for denoising digital tomosynthesis images J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-20
Abstract A supervised-learning strategy has showed outstanding performance in various fields. However, the application of the supervised learning for restoring digital tomosynthesis (DT) image is limited due to the necessity of a large amount of training data, the high computational cost and the occurrence of structural distortion in an output image. In this study, a multi-agent reinforcement learning
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Effects of toroidal rotation and ion collisional viscosity on low-frequency zonal flow in tokamak plasma J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-20 You Chen, Jun Yu, Bao-yi Xie, Lan Yin, Dong Xiang, Xue-yu Gong
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Study of dark photons using future electron–positron colliders based on machine learning J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-20
Abstract A dark photon is a hypothetical particle that has a similar role to a photon in the Standard Model (SM) electromagnetic interaction but has been proposed as a force carrier with a potential link to dark matter. Detecting dark photon in particle collider experiments poses significant challenges owing to the interference from the SM events. This paper presents how effectively machine learning
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Electrochemical aptasensor utilizing pulsed-electrodeposition of MXene film for estradiol detection J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-20 Seonki Min, Daegwon Noh, Eunsoon Oh
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A comparison between the Coleman homophily index and BA-homophily metric with a random network of unequal group sizes J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-20 Eun Lee, Jiyoung Kang
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Dark-energy wormholes in generalized Kaluza–Klein gravity J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-20
Abstract This paper discusses traversable wormholes in a dark-energy setting by starting with a model due to Sung-Won Kim. This model, based on the Friedmann–Lemaître–Robertson–Walker model, is combined with a generalized Kaluza–Klein model. It is well known that phantom dark energy can in principle support traversable wormholes due to the violation of the null energy condition (NEC), a necessary condition
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Optimal hole extraction performance in MoOx-incorporated PEDOT:PSS films for organic photovoltaics J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-14
Abstract We propose a hole extraction system based on the metal-like poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) blended with MoOx. Tuning the volume ratio of MoOx to PEDOT:PSS, the conductivity increases ten times, compared to that of pristine PEDOT:PSS film. The efficient charge recombination and generation characteristics between MoOx with PEDOT:PSS are argued as the increase
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Interaction and surface photovoltage effect of MoS2 with Na deposition J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-13
Abstract Using photoelectron spectroscopy (PES) with synchrotron radiation (SR), we investigated the interaction of a MoS2 surface with Na. When Na was deposited at room temperature and at low temperature (~ 90 K), the PES data showed that both the core levels and the valence band shifted toward high binding by almost the same energies, compared with the pristine surface. This indicates that the deposited
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Investigation of the propagation of coupled laser pulses in a plasma J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-13 Mina Mohammadi, Narges Sekhavat, Alireza Abdikian, Masoud Rezvani Jalal
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On the observables of renormalizable interactions J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-12
Abstract We reconsider the renormalization of scalar mass and point out that the quantum correction to the physical observable, as opposed to the bare parameter, of a renormalizable operator, is technically insensitive to ultraviolet physics and independent of the regularization scheme. It is expressed as the difference in the same quantities at different energy scales, maintaining the same asymptotics
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Transformation of charge polarity at HfO2/GaN interfaces through post-deposition annealing J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-11 Yoolim Han, Ju Mi Go, Kyungmi Yang, Minsu Kim, Kwangeun Kim
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Energy effect on the gamma analysis in the proton therapy end-to-end test with EBT film J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-02
Abstract We analyzed the effect of energy on the gamma analysis results in an end-to-end test using EBT3 film for the proton therapy facility commissioning. The EBT3 film calibration was performed using a single energy layer and SOBP-based film calibration methods to compare which is better. The results showed that the SOBP method exhibits better results for gamma passing ratio with all criteria. Also
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Development and commissioning of the UNIST electron beam ion trap J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-02-02 SungNam Park, Bokkyun Shin, Emre Cosgun, JeHwan Han, Moses Chung
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A study of the possibility of fat quantification diagnosis technology in ultrasound image using machine learning J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-26
Abstract In this study, after obtaining reference data of fat content by magnetic resonance imaging using a virtual phantom of fatty liver, an ultrasound image-based diagnostic technology that quantifies the fat content in the liver as a percentage using machine learning techniques through various variables in the ultrasound image. A virtual fatty liver phantom of oil/water 0–21% was fabricated so
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The improvement of piezoelectric properties in BiFeO3–BaTiO3 lead-free ceramics prepared with heat-treated rutile TiO2 J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-25 D. J. Kim, M. H. Lee, J. S. Kim, H. I. Choi, Soonil Lee, M.-H. Kim, T. K. Song
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Entanglement entropy as a marker of phase transition in the Ising model J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-23
Abstract The uniform two-dimensional tensor network of the partition function is interpreted as a multiple product of the one-dimensional quantum Hamiltonian, which is the one-dimensional transfer operator. We perform infinite density matrix renormalization group with matrix product operator and matrix product state in the actual contraction of the two-dimensional tensor network. In the process of
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Analysis of electrical performance of MgZnO/ZnO high electron mobility transistor J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-23 Yogesh Kumar Verma, Raam Dheep, Manoj Singh Adhikari
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On the thermodynamic entropy in the microcanonical ensemble of classical systems J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-23 Juyeon Yi, M. Y. Choi
We demonstrate that the surface entropy given by the volume of an energy shell in the phase space can be the thermodynamically consistent entropy in a classical microcanonical ensemble if the thickness of the energy shell is not an arbitrary constant but a non-extensive function satisfying a specific differential equation. A particular form of the energy shell thickness as a possible solution to the
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An efficiency calibration method of segmented gamma scanning in reconstructing radioactive waste drum activity J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-23 Honglong Zheng, Xianguo Tuo, Zhou Wang, Rui Gou, Qi Liu, Qiang Li, Rui Shi, Guang Yang
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Strip-line injection kicker for PAL-EUV booster synchrotron J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-19
Abstract There has been a demand for compact-size extreme ultraviolet (EUV) storage ring synchrotron facilities with sizes within tens of meters for use in the semiconductor industry. To meet this demand, Pohang Accelerator Laboratory developed the PAL-EUV facility in an area of 15 m × 15 m or less. From the constraint, PAL-EUV has a photocathode RF gun, a 3 m S-band linear accelerator, a 22.2 m circumference
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Search for practical scaling factors of Bragg peak arrangement for line-scanning proton beam therapy in RayStation J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-16 Kwangzoo Chung, Nalee Kim, Won Kyung Cho, Haeyoung Kim, Dongryul Oh, Won Park, Hee Chul Park, Do Hoon Lim
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Effects of respiratory motion on accurate four-dimensional computed tomography acquisition and plan delivery for lung stereotactic body radiation therapy J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-15 Bong Kyung Bae, Sung Joon Kim, Jae-Chul Kim
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[Co/NM/Pt]n-based seedless synthetic anti-ferromagnetic layer design for preventing MgO crystallinity degradation from Pt diffusion J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-15 Han-Sol Jun, Yo-Han Choi, So-Hyun Lee, Yeon-Soo Shin, Dong-Hyun Park, Jea-Gun Park
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Investigation on photoluminescence and photochromism in Eu3+-doped (Ba1-xCax)TiO3 J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-08
Abstract We investigated the photoluminescence (PL) and photochromic (PC) properties of ferroelectric (Ba1-xCax)TiO3 (BCT, x = 0.14 and 0.16) with the doping of Eu3+. To assess the effect of the Eu3+-doping sites on the luminescent properties, we prepared two types of samples: substitutional and interstitial dopings. We confirmed that our samples exhibited sizable luminescent properties without losing
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Effect of proton irradiation on superconducting fluctuations of SmBCO-coated conductor tapes J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-04 W. J. Choi, Yong Seung Kwon
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Random-singlet-like state emergent in s = 5/2 frustrated cubic lattice J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-03 Chanhyeon Lee, Sang-Kwon Lee, Suheon Lee, J. van Tol, Kwang-Yong Choi
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Simultaneous enhancement of electromagnetic interference shielding and infrared transmittance based on SnO2 thin films J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-03 Sang-Seok Lee, Il-Kyu Park
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A theoretical approach to study the thermal impact of the DC and RF characteristics of a MgZnO/ZnO HEMT J. Korean Phys. Soc. (IF 0.6) Pub Date : 2024-01-02 Saheb Chakraborty, Radha Raman Pal, Sutanu Dutta