Article
Chemistry, Multidisciplinary
Hamas Tahir, Naresh Eedugurala, Sheng-Ning Hsu, Paramasivam Mahalingavelar, Brett M. Savoie, Bryan W. Boudouris, Jason D. Azoulay
Summary: Open-shell conjugated polymers (CPs) offer new opportunities for emerging technologies due to their unique electronic and spin structures. In this study, the connections between molecular, electronic, and solid-state transport in a high-spin donor-acceptor CP were investigated. It was found that a giant negative magnetoresistance (MR) was achieved in the CP thin-film device at low temperatures, surpassing the performance of all other organic materials. As the temperature increased, the negative MR decreased and became positive, which correlated with the electronic and spin structure of the CP.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
J. B. S. Mendes, R. C. O. Guedes, R. O. Cunha
Summary: The study demonstrates that a pure spin current injected through the YIG/PANI interface can traverse the entire PANI layer and be converted into a charge current, revealing great potential for organic conductor polyaniline in spintronics devices.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Michael E. Steelman, Daniel J. Adams, Kevin S. Mayer, Paramasivam Mahalingavelar, Chih-Ting Liu, Naresh Eedugurala, Molly Lockart, Yunfei Wang, Xiaodan Gu, Michael K. Bowman, Jason D. Azoulay
Summary: In this study, a high-spin conjugated polymer is demonstrated, showing clear anisotropic spin ordering and exchange interactions at room temperature. The macromolecular structure and topology promote the generation of spin centers and intermolecular exchange coupling. This work offers a fundamentally new approach to the implementation of magnetically ordered organic materials and the integration of manifold properties within emerging technologies.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Alberto Privitera, Ross Warren, Giacomo Londi, Pascal Kaienburg, Junjie Liu, Andreas Sperlich, Andreas E. Lauritzen, Oliver Thimm, Arzhang Ardavan, David Beljonne, Moritz Riede
Summary: By using electron spin as a probe, insights into the mechanism of molecular doping in a p-doped zinc phthalocyanine host were gained. The study revealed the presence of two main paramagnetic species, the coupling of radical anions on dopants in an antiferromagnetic manner, and the movement of positive polarons on the molecular host by polaron hopping. This information can serve as a basis for designing the next generation of dopant and host materials.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Correction
Chemistry, Multidisciplinary
Derek R. Vardon, Mary Ann Franden, Christopher W. Johnson, Eric M. Karp, Michael T. Guarnieri, Jeffrey G. Linger, Michael J. Salm, Timothy J. Strathmann, Gregg T. Beckham
Summary: This article provides a correction on the production of adipic acid from lignin, presenting new perspectives and experimental results.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Patrick W. Fritz, Tianyang Chen, Timur Ashirov, Anh-Dao Nguyen, Mircea Dinca, Ali Coskun
Summary: Tetraoxa[8]circulenes (TOCs) are a class of hetero[8]circulenes with a mixed aromatic/antiaromatic motif, which governs their low-band-gap semiconductor properties. The first example of polymeric TOCs (pTOCs), a new family of porous semiconductors, has been successfully synthesized under ionothermal conditions through intermolecular cyclization. pTOCs are porous and exhibit tunable semiconducting properties.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Correction
Nanoscience & Nanotechnology
Yihan Xiao, Yan Wang, Shou-Hang Bo, Jae Chul Kim, Lincoln J. Miara, Gerbrand Ceder
Summary: The paper has been updated with an amendment, which can be accessed through a link at the top of the paper.
NATURE REVIEWS MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Yanxin Wang, Wei Qin
Summary: The study demonstrates that polarized light can effectively tune the crystal structure by driving molecular motion and affecting the electronic structure, hence improving physical properties. At low temperatures, external polarized laser is unable to directly influence molecular motion, while changing the polarization state of incident light shows pronounced effects on molecular motion.
ORGANIC ELECTRONICS
(2021)
Correction
Chemistry, Multidisciplinary
Kyohei Matsuo, Rina Okumura, Hironobu Hayashi, Naoki Aratani, Seihou Jinnai, Yutaka Ie, Akinori Saeki, Hiroko Yamada
Summary: This study discovers that phosphaacene can be used as a structural analogue of thienoacenes for organic semiconductors. The research findings demonstrate that phosphaacene exhibits excellent semiconductor properties and optical characteristics.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Nasim Zarrabi, Oskar J. Sandberg, Paul Meredith, Ardalan Armin
Summary: Organic semiconductors have various applications in areas such as light emission, photovoltaics, and optoelectronics. The characteristics of these devices are determined by the disordered nature of the molecular solid rather than energy bands. However, there are subgap states within the energy gap that may affect the performance of organic semiconductor devices. This Perspective discusses methods to determine these subgap states and their impact on device performance.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Nguyen Minh Nguyen, Giuseppe Cuono, Rajibul Islam, Carmine Autieri, Timo Hyart, Wojciech Brzezicki
Summary: Experiments on HgTe/CdTe and InAs/GaSb heterostructures, which are potential candidates for quantum spin Hall insulators, reveal the existence of additional edge states besides the topologically protected helical edge modes. Using first-principles calculations, an effective tight-binding model is derived for these materials, showing that the additional edge states are sensitive to edge termination. These states originate from a minimal model supporting flat bands with nontrivial quantum geometry and give rise to polarization charges at the edges.
Article
Chemistry, Multidisciplinary
Ruiheng Pan, Xiantong Tang, Lixuan Kan, Yang Li, Haomiao Yu, Kai Wang
Summary: This study demonstrates the circular photogalvanic effect (CPGE) and linear photogalvanic effect (LPGE) in (R-MBA)(2)PbI4 and (S-MBA)(2)PbI4 thin film materials. These effects exhibit decent two-fold symmetry for a complete cycle in a wide temperature range from 4 K to 300 K. The effect can be effectively tuned by constant magnetic fields, and the Bychkov-Rashba spin orbit coupling and chiral-induced magnetization are responsible for it. This research shows the promising future of using chiral lead halide perovskites for spin-orbitronics.
Article
Multidisciplinary Sciences
Raymond E. Blackwell, Fangzhou Zhao, Erin Brooks, Junmian Zhu, Ilya Piskun, Shenkai Wang, Aidan Delgado, Yea-Lee Lee, Steven G. Louie, Felix R. Fischer
Summary: Spin-ordered electronic states in hydrogen-terminated zigzag nanographene lead to magnetic quantum phenomena, sparking interest in carbon-based spintronics. Zigzag graphene nanoribbons have intrinsic electronic edge states that are ferromagnetically ordered along the edges and antiferromagnetically coupled across its width. By introducing substitutional N-atom dopants along the edges of a ZGNR, the spin-polarized edge states can be stabilized and electronically decoupled, revealing a giant spin splitting and confirming the emergence of magnetic order in ZGNRs.
Correction
Computer Science, Information Systems
Ranjan Pal, Jon Crowcroft, Yixuan Wang, Yong Li, Swades De, Sasu Tarkoma, Mingyan Liu, Bodhibrata Nag, Abhishek Kumar, Pan Hui
Summary: It is important to educate readers to expand the application scope of the article and recognize its practical value in various interdisciplinary fields.
Article
Chemistry, Multidisciplinary
Yi Xie, Ruyi Song, Akash Singh, Manoj K. Jana, Volker Blum, David B. Mitzi
Summary: Two-dimensional hybrid organic-inorganic perovskite semiconductors show potential for spin manipulation in future spintronic applications. This study demonstrates the modulation of structural and electronic properties in HOIPs using a temperature-induced phase transition, with the cooling rate determining the occurrence of the transition.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Nanoscience & Nanotechnology
Sara Catalano, Juan M. Gomez-Perez, M. Xochitl Aguilar-Pujol, Andrey Chuvilin, Marco Gobbi, Luis E. Hueso, Felix Casanova
Summary: Spin Hall magnetoresistance (SMR) is a reference tool used to investigate the magnetic properties of materials, but realistic surfaces may lead to unexpected artifacts in SMR due to defects and disorder. This study discovers that the SMR-like signal in heterostructures is generated by strong interfacial disorder, challenging the widespread assumption on the role of disorder in SMR measurements.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Chemistry, Multidisciplinary
Yuda Zhao, Marco Gobbi, Luis E. Hueso, Paolo Samori
Summary: This paper provides a review of the recent research progress in the functionalization of two-dimensional materials (2DMs). By covalently or noncovalently functionalizing 2DMs with molecules, more efficient charge injection and transport can be achieved, along with stimuli-responsive functionality. The authors introduce the relevant properties of 2DMs, molecules, and molecular switches, and discuss the physical and chemical strategies for synthesizing 2DM/molecule hybrid systems.
Article
Chemistry, Multidisciplinary
Daniel Tezze, Jose M. Pereira, Yaiza Asensio, Mihail Ipatov, Francesco Calavalle, Felix Casanova, Alexander M. Bittner, Maider Ormaza, Beatriz Martin-Garcia, Luis E. Hueso, Marco Gobbi
Summary: This research demonstrates the manipulation of magnetism in van der Waals antiferromagnet NiPS3 through intercalation of different organic cations, resulting in hybrid compounds with varying magnetic properties and transition temperatures. The processes of intercalation and cation exchange can be carried out in bulk crystals and few-layer flakes, providing a pathway for integrating intercalated magnetic materials into devices.
Article
Chemistry, Multidisciplinary
Sara Marina, Edgar Gutierrez-Fernandez, Junkal Gutierrez, Marco Gobbi, Nicolas Ramos, Eduardo Solano, Jeromy Rech, Wei You, Luis Hueso, Agnieszka Tercjak, Harald Ade, Jaime Martin
Summary: Accurate determination of the structural organization of semiconducting polymers is crucial for the development of organic electronic technologies. A new structural model, semi-paracrystalline organization, has been proposed to explain the performance discrepancies in some polymer materials, with parameters such as degree of paracrystallinity and lattice distortion being key factors in charge transport in semi-paracrystalline materials.
MATERIALS HORIZONS
(2022)
Article
Materials Science, Multidisciplinary
C. K. Safeer, Franz Herling, Won Young Choi, Nerea Ontoso, Josep Ingla-Aynes, Luis E. Hueso, Felix Casanova
Summary: Understanding spin physics in graphene is crucial for developing future spintronic devices. Recent studies have shown efficient spin-to-charge conversions in graphene through proximity with other materials. However, these conversions may be affected by other factors, which need to be taken into consideration.
Article
Chemistry, Multidisciplinary
Junhyeon Jo, Francesco Calavalle, Beatriz Martin-Garcia, Daniel Tezze, Felix Casanova, Andrey Chuvilin, Luis E. Hueso, Marco Gobbi
Summary: This study demonstrates the emergence of spinterface effects at the interface between Fe3GeTe2 and Co-phthalocyanine. Magnetotransport measurements show that the molecular layer induces a magnetic exchange bias in Fe3GeTe2, indicating antiferromagnetic ordering in Co-phthalocyanine and pinning of the magnetization reversal of Fe3GeTe2 via magnetic proximity.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Davide Spirito, Maria Barra-Burillo, Francesco Calavalle, Costanza Lucia Manganelli, Marco Gobbi, Rainer Hillenbrand, Felix Casanova, Luis E. Hueso, Beatriz Martin-Garcia
Summary: Strain was applied to a 2D organic-inorganic metal halide perovskite to study its temperature-dependent microphotoluminescence. The results showed that strain can modulate the emission spectrum and band structure, with both tensile and compressive strain observed on the flake surface.
Article
Chemistry, Multidisciplinary
Wenjing Yan, Andrey Akimov, Maria Barra-Burillo, Manfred Bayer, Jonathan Bradford, Vitalyi E. Gusev, Luis E. Hueso, Anthony Kent, Serhii Kukhtaruk, Achim Nadzeyka, Amalia Patane, Andrew W. Rushforth, Alexey Scherbakov, Dmytro D. Yaremkevich, Tetiana L. Linnik
Summary: Strain engineering using coherent phonons allows for the control of physical properties in 2D-vdW crystals, with the creation of flexural phononic crystals through periodic modulation of elastic coupling in vdW layers. Using an ultrafast pump-probe technique, we have successfully generated and detected these phonons, providing exciting prospects for ultrafast manipulation of states in 2D materials for emerging quantum technologies.
Article
Materials Science, Multidisciplinary
Josep Ingla-Aynes, Inge Groen, Franz Herling, Nerea Ontoso, C. K. Safeer, Fernando de Juan, Luis E. Hueso, Marco Gobbi, Felix Casanova
Summary: This study demonstrates the conversion of spin currents polarized in different directions into charge currents in van der Waals heterostructures with tailored symmetry. The different components of spin-to-charge conversion observed are likely due to spin-orbit proximity and broken symmetry at the twisted graphene/NbSe2 interface. This finding opens up possibilities for the use of new architectures in spintronic devices.
Article
Chemistry, Multidisciplinary
Yaiza Asensio, Sergio Marras, Davide Spirito, Marco Gobbi, Mihail Ipatov, Felix Casanova, Aurelio Mateo-Alonso, Luis E. Hueso, Beatriz Martin-Garcia
Summary: Understanding the structural and magnetic properties of layered hybrid organic-inorganic metal halide perovskites (HOIPs) is crucial for their design and integration into spin-electronic devices. A systematic study on ten compounds reveals the influence of transition metals, organic spacers, and perovskite phases on the properties of these materials. Temperature-dependent Raman measurements show that the structural phase transitions are triggered by the motion of organic cations and flexibility of the inorganic metal-halide lattice. The behavior of Cu2+ HOIPs changes from a 2D ferromagnet to a quasi-3D antiferromagnet, while Mn2+ HOIPs exhibit rich magnetism including spin-canting and metamagnetism controlled by crystal anisotropy. Co2+ crystals, regardless of the organic spacer and perovskite phase, show dominant paramagnetic behavior. This research demonstrates the potential of exploiting the chemical flexibility of HOIPs to develop novel layered magnetic materials with tailored properties.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Melania Maglio, Maria Sartori, Alessandro Gambardella, Tatiana Shelyakova, Valentin Alek Dediu, Matteo Santin, Yolanda Pineiro, Manuel Banobre Lopez, Jose Rivas, Anna Tampieri, Simone Sprio, Lucia Martini, Alessandro Gatti, Alessandro Russo, Gianluca Giavaresi, Milena Fini
Summary: The use of functionalized scaffolds incorporated with superparamagnetic nanoparticles and vascular endothelial growth factor (VEGF) injection into a magnetic scaffold resulted in increased bone regeneration in a large bone defect in sheep metatarsus. The magnetic field generated by implanted magnets allowed the capture of the injected nanoparticles, forming a VEGF gradient in the scaffold's porosity. Histomorphometric measurements showed improved bone growth and bone-to-implant contact, while atomic force microscopy (AFM) analysis revealed similar nanomechanical behavior of the regenerated tissue to the magnetic field distribution. This study demonstrates the potential of magnetic technologies combined with functionalized scaffolds to enhance bone formation and improve bone/scaffold interaction.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Alexey Y. Nikitin, Rainer Hillenbrand, Andrei Bylinkin, Francesco Calavalle, Maria Barra-Burillo, Roman V. Kirtaev, Elizaveta Nikulina, Evgeny Modin, Eli Janzen, James H. Edgar, Felix Casanova, Luis E. Hueso, Valentyn S. Volkov, Paolo Vavassori, Igor Aharonovich, Pablo Alonso-Gonzalez
Summary: Strong coupling between light and matter excitations in both mid-IR and visible frequency bands is achieved by introducing polaritonic nanoresonators, which can manipulate material properties and have potential applications in optoelectronics, nanophotonics, and quantum information.
Article
Nanoscience & Nanotechnology
Marcel S. Claro, Javier Corral-Sertal, Adolfo Otero Fumega, Santiago Blanco-Canosa, Manuel Suarez-Rodriguez, Luis E. Hueso, Victor Pardo, Francisco Rivadulla
Summary: The thermal conductivity of a van der Waals two-dimensional ferromagnet Fe3GeTe2 was studied, revealing diffusion transport and changes in thermal conductivity associated with thickness and magnetic phase transition. These findings demonstrate the potential of van der Waals ferromagnets in thermal transport engineering.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Physics, Applied
Nerea Ontoso, C. K. Safeer, Josep Ingla-Aynes, Franz Herling, Luis E. Hueso, M. Reyes Calvo, Felix Casanova
Summary: Multi-directional spin-to-charge conversion has been demonstrated in low-symmetry materials and interfaces, where spin polarizations can be converted into a charge current in the same direction regardless of their orientations. In this study, we investigate the spin-to-charge conversion in graphene/MoTe2 heterostructures at low temperatures. We observe unconventional charge conversion for out-of-plane spins and the evolution of non-local voltage signals arising from in-plane spin polarizations.
APPLIED PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Davide Spirito, Yaiza Asensio, Luis E. Hueso, Beatriz Martin-Garcia
Summary: The synthesis and characterization of hybrid organic-inorganic metal halide perovskites (HOIPs) have made continuous progress, driven by their exceptional properties in optoelectronic applications. Layered HOIPs, consisting of inorganic layers and organic cations, have emerged as a promising material platform due to their tunability and potential to address stability and migration issues. Raman spectroscopy has provided valuable insights into the complex structural nature of these materials, highlighting the role of lattice vibrations, external stimuli, and the coupling between charge carriers and optical phonons.
JOURNAL OF PHYSICS-MATERIALS
(2022)
