Article
Materials Science, Multidisciplinary
Ke Wang, T. A. Sedrakyan
Summary: Perpendicular magnetic field introduces an anomalous interaction correction to the static conductivity of doped graphene, leading to a proportional relationship between magnetoresistance and inverse temperature. This behavior originates from field-induced breaking of symmetry.
Article
Chemistry, Multidisciplinary
Erick Arguello Cruz, Pedro Ducos, Zhaoli Gao, Alan T. Charlie Johnson, Dario Niebieskikwiat
Summary: In this study, the effect of ferromagnetic nickel nanoparticles on the magnetotransport properties of chemical-vapor-deposited graphene was characterized. It was found that these nanoparticles greatly suppressed the zero-field peak of resistivity caused by weak localization and enhanced the high-field magnetoresistance. The interaction between the graphene and the nickel nanoparticles was attributed to a local exchange coupling, which did not affect the intrinsic transport parameters of graphene, indicating that the changes in magnetotransport properties were purely magnetic in origin.
Article
Physics, Condensed Matter
F. Mesquita, G. Copetti, M. A. Tumelero, M. A. Gusmao, C. Radtke, P. Pureur
Summary: Chlorination of single-layer CVD graphene leads to strong hole doping and weak-localization effects due to intrinsic disorder in the as-grown system and chlorination process. The theoretically predicted negative magnetoresistance regime is observed in freshly chlorinated samples. Time-dependent effects in the electrical transport properties of functionalized CVD graphene samples are also observed as adsorbed chlorine is gradually lost.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Multidisciplinary Sciences
Takuya Iwasaki, Satoshi Moriyama, Nurul Fariha Ahmad, Katsuyoshi Komatsu, Kenji Watanabe, Takashi Taniguchi, Yutaka Wakayama, Abdul Manaf Hashim, Yoshifumi Morita, Shu Nakaharai
Summary: We report on the magnetotransport characteristics of a high-quality graphene device encapsulated in hexagonal boron nitride layers, showing an interplay of quantum interferences in Dirac materials at different temperatures. The elastic scattering mechanism in the hBN/Gr/hBN stacks contrasts with conventional graphene on SiO2, and our ultra-clean graphene device exhibits nonzero magnetoconductance at high temperatures up to 300 K.
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Multidisciplinary
Qianwen Wang, Tenghua Gao, Takashi Harumoto, Kazuya Ando, Yoshio Nakamura, Ji Shi
Summary: Enhanced linear positive magnetoresistance of graphene is achieved at room temperature by depositing Co particles on the surface, which introduces strong inhomogeneity. The interfacial hybridization between graphene and Co further enhances spatial fluctuation of carrier density and mobility, leading to a higher PMR that is useful for magnetic sensing at room temperature.
Article
Nanoscience & Nanotechnology
Alexander K. Fedotov, Uladzislaw E. Gumiennik, Julia A. Fedotova, Janusz Przewoznik, Czeslaw Kapusta
Summary: The study conducted an improved analysis of carrier transport in single-layer graphene and hybrid structures, showing the coexistence of negative and positive contributions in magnetoresistive effect. Various models were used to analyze the dependences on temperature and magnetic field, providing insights into the behavior of electrical resistance in the structures.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Physics, Applied
Rui Pang, Jianjun Tian, Chaoyang Kang, Longsheng Wang, Haiyang Gu, Mengna Shen, Limin She, Yeheng Song, Xiansheng Liu, Weifeng Zhang
Summary: This paper reports the transport properties of bulk Ta1.04Ru0.78Te4 single crystals. The samples exhibited metallic behavior with a resistivity upturn below approximately 8.6 K, which may be attributed to quantum correction effects. The weakly nonlinear Hall resistivity suggests a p-type and multiband feature, and the magnetoresistance and violation of Kohler's rule further indicate the presence of weak antilocalization in the Ta1.04Ru0.78Te4 single crystal. These findings provide insights into the quantum transport properties of Ta1.04Ru0.78Te4 single crystals for future device design.
APPLIED PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Hongyi Yan, Haiwen Liu
Summary: This study investigates the weak localization and weak antilocalization effects in twisted bilayer graphene on a hexagonal boron nitride substrate. The researchers discovered that interlayer scattering significantly contributes to the conductivity correction, and a double crossover from weak localization to weak antilocalization and back occurs at a specific range of Fermi energy.
Article
Materials Science, Multidisciplinary
Subhadip Jana, T. Senapati, Shwetha G. Bhat, S. N. Sarangi, K. Senapati, D. Samal
Summary: Through quantum interference originated magnetoconductance study, we provide evidence for quenched magnetic impurity scattering in an antiferromagnetic proximity effect. The observation of enhanced effective phase coherence length and the emergence of chiral-anomaly-induced topological response in longitudinal magnetoconductance indicate the suppression of magnetic impurity scattering in the SrCuO2/SrIrO3 bilayer. This work uncovers a practical means to circumvent unintended magnetic impurity scattering and preserve quantum phenomena in complex materials.
Article
Physics, Applied
Shaman Bhattacharyya, Somnath Bhattacharyya
Summary: The text discusses the potential of quantum computers in simulating quantum many-body physics by constructing multiple scattering centers and tunnel barriers to achieve a large return probability for electrons. The combination of tunneling in a double-path circuit results in phase reversal and the generation of the weak anti-localization effect.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Sudip Malick, Arup Ghosh, Chanchal K. Barman, Aftab Alam, Z. Hossain, Prabhat Mandal, J. Nayak
Summary: The effect of 50% Cu doping at the Au site in CaAuAs, a topological Dirac semimetal, is investigated. The study reveals a broken-symmetry-driven topological phase transition from the Dirac to triple-point state in CaAuAs through alloy engineering. The doped compound exhibits the weak antilocalization effect and the signature of chiral anomaly in longitudinal magnetoresistance.
Article
Chemistry, Physical
Huifang Kang, Binchang Hua, Lanqing Xu, Xiaoling Zhan, Yongping Zheng, Zhigao Huang
Summary: This study developed a modified non-transferred graphdiyne film synthesis method and investigated its magnetoresistance effect. A temperature-dependent crossover between positive and negative magnetoresistance was observed in the graphdiyne film, with mechanisms involving the magnetic polaron model and weak localization.
Article
Physics, Multidisciplinary
N. Arabchigavkani, R. Somphonsane, H. Ramamoorthy, G. He, J. Nathawat, S. Yin, B. Barut, K. He, M. D. Randle, R. Dixit, K. Sakanashi, N. Aoki, K. Zhang, L. Wang, W-N Mei, P. A. Dowben, J. Fransson, J. P. Bird
Summary: Mesoscopic conductance fluctuations are a common feature in small conductors, but this study reveals a breakdown of universality due to the interplay of local and remote phenomena in transport. The experiments demonstrate that remote factors can significantly impact conductivity in phase-coherent conductors, leading to giant conductance fluctuations exceeding theoretical predictions.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Applied
Ming-Yuan Yan, Shuang-Shuang Li, Jian-Min Yan, Li Xie, Meng Xu, Lei Guo, Shu-Juan Zhang, Guan-Yin Gao, Fei-Fei Wang, Shan-Tao Zhang, Xiaolin Wang, Yang Chai, Weiyao Zhao, Ren-Kui Zheng
Summary: In this study, we demonstrate the electric field control of the spin-orbit interaction (SOI) through constructing ferroelectric Rashba structures. By utilizing switchable ferroelectric polarization, the spin relaxation time and spin splitting energy of Bi2O2Se films can be modulated reversibly and non-volatilely, providing a scheme for achieving nonvolatile control of the SOI.
PHYSICAL REVIEW APPLIED
(2022)
Article
Multidisciplinary Sciences
Gang Shi, Fan Gao, Zhilin Li, Rencong Zhang, Igor Gornyi, Dmitri Gutman, Yongqing Li
Summary: The study combines quantum interference, electron-electron interaction (EEI), and disorder to investigate the magnetotransport properties of topological insulators. It is found that magnetoconductance can be significantly enhanced by second-order interference and EEI effects, in contrast to systems with orthogonal symmetry. This study reveals important insights into the complex electronic processes in topological insulators through magnetoconductance analysis.
NATURE COMMUNICATIONS
(2023)
Article
Physics, Applied
Song Hyeon Nam, Tae-Eon Park, Youn Ho Park, Hae-In Ihm, Hyun Cheol Koo, Hyung-jun Kim, Suk Hee Han, Joonyeon Chang
APPLIED PHYSICS LETTERS
(2016)
Article
Engineering, Electrical & Electronic
Won Young Choi, Hyung-Jun Kim, Joonyeon Chang, Suk Hee Han, Hyun Cheol Koo
JOURNAL OF ELECTRONIC MATERIALS
(2017)
Article
Chemistry, Multidisciplinary
Mi-Jin Jin, Seon Young Moon, Jungmin Park, Vijayakumar Modepalli, Junhyeon Jo, Shin-Ik Kim, Hyun Cheol Koo, Byoung-Chul Min, Hyun-Woo Lee, Seung-Hyub Baek, Jung-Woo Yoo
Article
Multidisciplinary Sciences
Kwang-Chon Kim, Joohwi Lee, Byung Kyu Kim, Won Young Choi, Hye Jung Chang, Sung Ok Won, Beomjin Kwon, Seong Keun Kim, Dow-Bin Hyun, Hyun Jae Kim, Hyun Cheol Koo, Jung-Hae Choi, Dong-Ik Kim, Jin-Sang Kim, Seung-Hyub Baek
NATURE COMMUNICATIONS
(2016)
Article
Chemistry, Physical
Juwon Lee, Yoon Shon, N. G. Subramaniam, Taewon Kang, Jae Min Sohn, Hyungsang Kim, Hyunsik Im, Hyun Cheol Koo, Joo-Hyeon Lee, Jing Dong Song, Chang-Soo Park, Eun Kyu Kim
JOURNAL OF ALLOYS AND COMPOUNDS
(2017)
Article
Nanoscience & Nanotechnology
Jae Min Sohn, Hyungsang Kim, Hyunsik Im, Hyungbae Kim, Juwon Lee, Yoon Shon, N. G. Subramaniam, Taewon Kang, Deuk Young Kim, Hyun Cheol Koo, Joo-hyeon Lee, Jing Dong Song, Chang-Soo Park, Eun Kyu Kim
Article
Multidisciplinary Sciences
Tae-Eon Park, Youn Ho Park, Jong-Min Lee, Sung Wook Kim, Hee Gyum Park, Byoung-Chul Min, Hyung-Jun Kim, Hyun Cheol Koo, Heon-Jin Choi, Suk Hee Han, Mark Johnson, Joonyeon Chang
NATURE COMMUNICATIONS
(2017)
Article
Multidisciplinary Sciences
Seonghoon Woo, Kyung Mee Song, Hee-Sung Han, Min-Seung Jung, Mi-Young Im, Ki-Suk Lee, Kun Soo Song, Peter Fischer, Jung-Il Hong, Jun Woo Choi, Byoung-Chul Min, Hyun Cheol Koo, Joonyeon Chang
NATURE COMMUNICATIONS
(2017)
Article
Chemistry, Analytical
Sung Jong Kim, Seung-Woo Lee, Jin Dong Song, Young-Wan Kwon, Kyung-Jin Lee, Hyun Cheol Koo
SENSORS AND ACTUATORS B-CHEMICAL
(2018)
Article
Multidisciplinary Sciences
Seonghoon Woo, Kyung Mee Song, Xichao Zhang, Yan Zhou, Motohiko Ezawa, Xiaoxi Liu, S. Finizio, J. Raabe, Nyun Jong Lee, Sang-Il Kim, Seung-Young Park, Younghak Kim, Jae-Young Kim, Dongjoon Lee, OukJae Lee, Jun Woo Choi, Byoung-Chul Min, Hyun Cheol Koo, Joonyeon Chang
NATURE COMMUNICATIONS
(2018)
Article
Multidisciplinary Sciences
Youn Ho Park, Jun Woo Choi, Hyung-jun Kim, Joonyeon Chang, Suk Hee Han, Heon-Jin Choi, Hyun Cheol Koo
SCIENTIFIC REPORTS
(2017)
Article
Materials Science, Multidisciplinary
Youn Ho Park, Hyun-jun Kim, Joonyeon Chang, Hyun Cheol Koo
CURRENT APPLIED PHYSICS
(2017)
Article
Physics, Applied
Tae-Eon Park, Byoung-Chul Min, Hee Gyum Park, Jaejun Lee, Moon-Ho Jo, Chaun Jang, Hyun Cheol Koo, Heon-Jin Choi, Joonyeon Chang
APPLIED PHYSICS LETTERS
(2017)
Article
Materials Science, Multidisciplinary
SangHoon Shin, YounHo Park, HyunCheol Koo, YunHeub Song, JinDong Song
CURRENT APPLIED PHYSICS
(2017)
Article
Materials Science, Multidisciplinary
Won Young Choi, Hyung-Jun Kim, Joonyeon Chang, Gyungchoon Go, Kyung-Jin Lee, Hyun Cheol Koo
CURRENT APPLIED PHYSICS
(2017)
Article
Physics, Condensed Matter
Shivani Gohri, Jaya Madan, Rahul Pandey
Summary: This study improves the efficiency of SnS-based solar cells by implementing the glancing angle deposition approach and introducing a CZTSSe layer. The findings offer valuable insights for enhancing the design of SnS-based solar cells and making them more efficient.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Mahboubeh Yeganeh, Davoud Vahedi Fakhrabad
Summary: The lattice thermal conductivity of CdO monolayer was investigated, and it was found to be lower than that of bulk CdO due to the lower phonon lifetime and phonon group velocity. As a result, the monolayer exhibits higher thermoelectric efficiency compared to the bulk counterpart.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Shivam Srivastava, Prachi Singh, Anjani K. Pandey, Chandra K. Dixit
Summary: In this research paper, a novel equation of state (EOS) based on finite strain theories is proposed for predicting the thermo elastic properties of various materials. Extensive analysis and comparison with existing models and experimental data demonstrate the validity and effectiveness of the proposed EOS in capturing the unique thermodynamic behavior of nanomaterials, bulk metallic glasses, and superconductors. This research is of great importance in the fields of materials science, nanotechnology, and condensed matter physics.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Subrata Das, Sanjoy Kr Mahatha, Konstantin Glazyrin, R. Ganesan, Suja Elizabeth, Tirthankar Chakraborty
Summary: In this study, we investigated the structural evolution of Tb2Ti2O7 under external pressure and temperature, and confirmed the occurrence of an isostructural phase transition beyond 10 GPa pressure. This transition leads to changes in lattice parameters and mechanical properties, which can be understood in terms of localized rearrangement of atoms.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Hamze Mousavi
Summary: It has been found that undoped graphene sheet has zero states at the Fermi energy level, making it difficult for Cooper pairing to occur in the superconductive state. However, T-graphene, with physical properties similar to graphene, exhibits metallic behavior and has available electron states near the Fermi level. The gap equation for the s-wave superconductive state is derived based on the attractive Hubbard model and the Bogoliubov de Gennes equation for this two-dimensional metallic system. It is found that a nonzero critical temperature, τ, exists for different levels of electron-electron interaction, ǫ. τ has higher values when the system has electronic half band-filling, but decreases when the system does not have half band-filling. However, τ vanishes when ǫ becomes small enough near the band edges.
SOLID STATE COMMUNICATIONS
(2024)