Article
Nanoscience & Nanotechnology
Mengjuan Mi, Han Xiao, Lixuan Yu, Yingxu Zhang, Yuanshuo Wang, Qiang Cao, Yilin Wang
Summary: Spintronics is a promising technology for developing high-speed, high-density, low-power, and nonvolatile memory and logic devices by controlling and manipulating spin configurations. Two-dimensional magnetic materials have attracted significant attention due to their unique magnetic properties and physical effects, providing a new platform for the development of novel spintronic devices.
MATERIALS TODAY NANO
(2023)
Review
Physics, Applied
Lishu Zhang, Jun Zhou, Hui Li, Lei Shen, Yuan Ping Feng
Summary: With the diminishing effectiveness of Moore's law, there is an urgent need for alternative high-speed and low-energy-consuming information technology. The utilization of 2D materials in MTJs presents many advantages and opportunities, bringing new challenges and prospects to the field of magnetic informatics.
APPLIED PHYSICS REVIEWS
(2021)
Review
Chemistry, Inorganic & Nuclear
Gonzalo Vallejo-Fernandez, Markus Meinert
Summary: There is significant interest worldwide in identifying new antiferromagnetic materials suitable for device applications, with key requirements including high magnetocrystalline anisotropy constant, low cost, high corrosion resistance, and the ability to induce a large exchange bias. The novel antiferromagnetic material MnN shows potential as a replacement for the commonly used antiferromagnet IrMn, but further optimization is needed.
Review
Chemistry, Multidisciplinary
Dorothea Wisser, Martin Hartmann
Summary: NMR spectroscopy of xenon is a powerful method for probing pore sizes and structures in functional and catalytic materials, providing insights into hierarchical structures. This technique has both possibilities and limitations, as highlighted in recent works.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Mandar Jatkar, Kamal K. Jha, Sarat K. Patra
Summary: By investigating Zigzag GaN nanoribbons using DFT and NEGF framework, the study found that Fe doping can enhance the structural stability of ZGaNNR and the magnetic moment of different configurations depends on the position of Fe atom. Fe-termination@N_edge ZGaNNR is considered a strong candidate for magnetic stabilization, while Fe-termination@both_the_edges ZGaNNR exhibits high metallicity.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Review
Food Science & Technology
Dilek Eltemur, Peter Robatscher, Michael Oberhuber, Matteo Scampicchio, Alberto Ceccon
Summary: Nuclear magnetic resonance (NMR) spectroscopy is a promising technique for the analysis of bovine milk due to its non-destructive nature, minimal sample preparation requirements, and comprehensive approach. This review provides an overview of the applications of NMR techniques in assessing the quality and authenticity of bovine milk, highlighting key studies and emphasizing the versatility and significance of NMR spectroscopy in milk metabolomics research.
Article
Chemistry, Physical
Zahra Karami Horastani, Saber Jamali Hajiani
Summary: This study investigates the electronic and magnetic properties of CNT80 decorated with a diatomic configuration of Ag and X (X = Pd, Pt, and Ag). The results show that Ag and X are adsorbed on CNT80 in the form of dimers, and the electronic band structure and densities of states are calculated. Furthermore, a proposed application as a spintronic CO sensor is introduced.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Polymer Science
Francesco Valentini, Emanuela Callone, Sandra Dire, Jean-Claude Roux, Jose-Marie Lopez-Cuesta, Gwenn le-Saout, Luca Fambri, Andrea Dorigato, Alessandro Pegoretti
Summary: Novel elastomeric panels with paraffin were developed for thermal energy storage applications. The panels were made of EPDM rubber filled with a shape-stabilized paraffin, covered with an NBR envelope. The fire resistance was improved by dispersing flame retardants in the EPDM core and the NBR envelope. The combustion residues were analyzed to understand the combustion mechanisms and the interaction of flame retardants using various techniques including NMR, XRD, and EDX.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Chemistry, Multidisciplinary
Martin Gierse, Alastair Marshall, M. Usman Qureshi, Jochen Scharpf, Anna J. Parker, Birgit J. M. Hausmann, Paul Walther, Ania C. Bleszynski Jayich, Fedor Jelezko, Philipp Neumann, Ilai Schwartz
Summary: Nanostructuring of materials is an important technique to modify their properties and enable new applications. This study presents a scalable fabrication technique for creating densely packed diamond nanopillars, which is useful for quantum technology applications. The technique involves oxygen-plasma etching and an etch mask to create high-aspect-ratio pillars. The research demonstrates the compatibility of the technique with quantum sensing using nitrogen-vacancy centers in diamond nanopillar sidewalls.
Article
Engineering, Electrical & Electronic
B. Poornaprakash, K. Subramanyam, Rajesh Cheruku, Y. L. Kim, M. Siva Pratap Reddy, Vasudeva Reddy Minnam Reddy
Summary: Modern spintronic applications are actively seeking the use of diluted magnetic semiconductors with improved ferromagnetic features. The incorporation of Cr dopant and co-dopant ions (Al and Mn) into the CdS host lattice resulted in decreased energy band gap, with CdS:(Cr + Al) semiconductor showing enhanced ferromagnetic characteristics.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Reena Sharma, Neelam Hooda, Ashima Hooda, Satish Khasa
Summary: A detailed study of the magnetic behavior of double perovskites was conducted by developing La2Co1-xFexMnO6 using the sol-gel technique. The results showed that substituting Fe on the Co-site led to a systematic decrease in saturation magnetization but improved the magnetic properties at lower substitution levels.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Florence Franconi, Laurent Lemaire, Jean-Christophe Gimel, Samuel Bonnet, Patrick Saulnier
Summary: NMR-based diffusion methods are valuable tools for nanomedicine characterization and understanding interactions with the biological environment. They provide insights into diffusion phenomena and measurement of self-diffusion and mutual diffusion coefficients. NMR diffusometry spectroscopic and imaging methods have broad applications in nanomedicine, aiding in elucidating important issues.
JOURNAL OF CONTROLLED RELEASE
(2021)
Article
Chemistry, Multidisciplinary
Shinsuke Sando
Summary: This article describes the research on the development of hyperpolarized molecular probes with long hyperpolarization lifetimes. Various hyperpolarized molecular probes have been successfully developed and applied for in vivo studies, based on the understanding of the relaxation mechanism of hyperpolarized spin states. In addition, the development of hyperpolarized molecular probes with remarkably long hyperpolarization lifetimes has been demonstrated.
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2023)
Review
Physics, Applied
Yue Zhang, Xueqiang Feng, Zhenyi Zheng, Zhizhong Zhang, Kelian Lin, Xiaohan Sun, Guanda Wang, Jinkai Wang, Jiaqi Wei, Pierre Vallobra, Yu He, Zixi Wang, Lei Chen, Kun Zhang, Yong Xu, Weisheng Zhao
Summary: Spintronic devices, which use spin instead of charge for information processing, are considered promising candidates for next-generation electronic devices. In recent years, ferrimagnetic materials have emerged as a platform for high-density, high-speed, and low-power-consumption memory and logic functions. By adjusting chemical composition and temperature, ferrimagnets can achieve vanishing magnetization and ultrafast magnetic dynamics. Unlike antiferromagnets, ferrimagnets can be manipulated using conventional electrical read-write methods, making them suitable for applications. This review surveys a wide range of ferrimagnetic materials, including oxides and alloys, and discusses their unique magnetic dynamics and effective methods for manipulating their magnetic states. The review also considers novel storage and computing devices based on ferrimagnets and the challenges that need to be addressed in future applications.
APPLIED PHYSICS REVIEWS
(2023)
Article
Physics, Condensed Matter
Rui Zhao, Rui Guo, Yiran Peng, Yanfeng Ge, Yong Liu, Wenhui Wan
Summary: In this study, the structural and magnetic properties of group-IV-doped monolayer GaN were systematically investigated using first-principles calculations. The results showed that only Ge and Sn atoms with large atomic radii could form a buckling substituted doping structure with an in-plane magnetic moment. Compressive strains enhanced the in-plane magnetic anisotropy, while tensile strains tended to destroy the magnetic moment of dopants. Ge and Sn atoms could form anti-ferromagnetic semiconductors on the same side of the monolayer GaN, and intrinsic vacancies eliminated the magnetic moments of group-IV dopants.
PHYSICA B-CONDENSED MATTER
(2023)
Review
Biochemistry & Molecular Biology
Elisa Thauer, Alexander Ottmann, Philip Schneider, Lucas Moeller, Lukas Deeg, Rouven Zeus, Florian Wilhelmi, Lucas Schlestein, Christoph Neef, Rasha Ghunaim, Markus Gellesch, Christian Nowka, Maik Scholz, Marcel Haft, Sabine Wurmehl, Karolina Wenelska, Ewa Mijowska, Aakanksha Kapoor, Ashna Bajpai, Silke Hampel, Ruediger Klingeler
Article
Physics, Multidisciplinary
T. E. Kuzmicheva, S. A. Kuzmichev, I. Morozov, S. Wurmehl, B. Buechner
Article
Materials Science, Multidisciplinary
F. Caglieris, C. Wuttke, X. C. Hong, S. Sykora, R. Kappenberger, S. Aswartham, S. Wurmehl, B. Buechner, C. Hess
Summary: In this study, the thermoelectric transport properties of two underdoped 1111 iron-based superconductors were found to exhibit a strong response to small strains, revealing that the nematic phenomenology in transport is a result of the interplay between anisotropic scattering time and Fermi surface distortions. The nematic fluctuations were shown to relax in a Curie-Weiss fashion above T-S in all elasto-transport measurements, suggesting that nematicity must be band selective.
NPJ QUANTUM MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Vitaliy Romaka, Ahmad Omar, Wolfgang Loeser, Bernd Buechner, Sabine Wurmehl
Summary: Investigations into the thermodynamic phase diagram of Co-based Heusler phases, focusing on the quaternary region of CoCrCoAl-CoFe, revealed critical points and immiscibility regions through DFT and thermodynamic calculations, offering valuable insights for materials design.
COMPUTATIONAL MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
F. Scaravaggi, S. Sauerland, L. Wang, R. Kappenberger, P. Lepucki, A. P. Dioguardi, X. Hong, F. Caglieris, C. Wuttke, C. Hess, H-J Grafe, S. Aswartham, S. Wurmehl, R. Klingeler, A. U. B. Wolter, B. Buechner
Summary: Through magnetic susceptibility studies and high-resolution capacitance dilatometry experiments, we identified the phase diagram properties of Co-doped LaFeAsO. As the Co content increases, the antiferromagnetic and nematic phases gradually weaken, with bulk superconductivity appearing around 6% Co content. However, superconductivity decreases as the Co content goes higher.
Article
Materials Science, Multidisciplinary
Piotr Lepucki, Raphael Havemann, Adam P. Dioguardi, Francesco Scaravaggi, Anja U. B. Wolter, Rhea Kappenberger, Saicharan Aswartham, Sabine Wurmehl, Bernd Buechner, Hans-Joachim Grafe
Summary: The phase diagram of LaFe1-xCoxAsO single crystals was determined using nuclear magnetic resonance (NMR). The results showed that F-doped samples exhibit superconductivity at low doping levels, while Co-doped samples exhibit structural and magnetic transitions. Short-range magnetic order was observed at doping levels up to x = 0.056, and magnetic fluctuations revealed the interplay of nematicity and magnetism.
Article
Physics, Multidisciplinary
Zhixiang Sun, Jose M. Guevara, Steffen Sykora, Ekaterina M. Parschke, Kaustuv Manna, Andrey Maljuk, Sabine Wurmehl, Jeroen van den Brink, Bernd Buechner, Christian Hess
Summary: This study utilized low-temperature scanning tunneling microscopy to investigate the nanoscale electronic structure of the Mott insulator Sr2IrO4-delta, revealing an enhanced local density of states at individual defects and a chiral behavior in the topography. The visualization of local enhanced conductance from overlapping defect states suggests a percolative insulator-to-metal transition in Sr2IrO4-delta.
PHYSICAL REVIEW RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
J. Fink, E. D. L. Rienks, M. Yao, R. Kurleto, J. Bannies, S. Aswartham, I Morozov, S. Wurmehl, T. Wolf, F. Hardy, C. Meingast, H. S. Jeevan, J. Maiwald, P. Gegenwart, C. Felser, B. Buechner
Summary: An angle-resolved photoemission study on a series of hole- and electron-doped iron-based superconductors was reported, focusing on the inner hole pocket and energy dependence. The results support the spin fluctuation model for superconductivity in these materials.
Article
Materials Science, Multidisciplinary
C. Wellm, J. Zeisner, A. Alfonsov, M- Sturza, G. Bastien, S. Ga, S. Wurmehl, A. U. B. Wolter, B. Buchner, V Kataev
Article
Physics, Multidisciplinary
Birender Singh, M. Vogl, S. Wurmehl, S. Aswartham, B. Buchner, Pradeep Kumar
PHYSICAL REVIEW RESEARCH
(2020)
Article
Materials Science, Multidisciplinary
Y. S. Kushnirenko, D. Evtushinsky, T. K. Kim, I Morozov, L. Harnagea, S. Wurmehl, S. Aswartham, B. Buechner, A. Chubukov, S. Borisenko
Article
Chemistry, Inorganic & Nuclear
Mihai Sturza, M. Lourdes Amigo, Jorge Facio, Federico Caglieris, Saicharan Aswartham, Silvia Seiro, Christian Hess, Jeroen van den Brink, Sabine Wurmehl, Bernd Buechner
JOURNAL OF SOLID STATE CHEMISTRY
(2020)
Article
Materials Science, Multidisciplinary
D. Takegami, D. Kasinathan, K. K. Wolff, S. G. Altendorf, C. F. Chang, K. Hoefer, A. Melendez-Sans, Y. Utsumi, F. Meneghin, T. D. Ha, C. H. Yen, K. Chen, C. Y. Kuo, Y. F. Liao, K. D. Tsuei, R. Morrow, S. Wurmehl, B. Buechner, B. E. Prasad, M. Jansen, A. C. Komarek, P. Hansmann, L. H. Tjeng
Article
Materials Science, Multidisciplinary
Juriaan Lucassen, Casper F. Schippers, Marcel A. Verheijen, Patrizia Fritsch, Erik Jan Geluk, Beatriz Barcones, Rembert A. Duine, Sabine Wurmehl, Henk J. M. Swagten, Bert Koopmans, Reinoud Lavrijsen
Article
Materials Science, Multidisciplinary
Hans-Joachim Grafe, Piotr Lepucki, Markus Witschel, Adam P. Dioguardi, Rhea Kappenberger, Saicharan Aswartham, Sabine Wurmehl, Bernd Buechner