Spin glass like transition and the exchange bias effect in Co3O4 nanoparticles anchored onto graphene sheets
文献信息
S. Sarkar, A. Mondal, N. Giri, R. Ray
We have synthesized Co3O4 nanoparticles having 40 nm average size, which are anchored on reduced graphene oxide. X-ray diffraction, FESEM, TEM and Raman spectroscopy are performed for the characterization. The temperature dependence of field cooled (FC) and zero field cooled (ZFC) magnetization curves exhibits antiferromagnetic (AFM) transition around ∼30 K, as observed for bulk Co3O4. The exchange bias effect is observed below ∼30 K. A significant change in the exchange bias effect is noted around ∼8 K, which is close to a spin-glass-like transition. The spin-glass-like phase has been confirmed by the memory effects observed by different experimental protocols. The possible origin of exchange bias is discussed in the manuscript.
相关文献
The role of disorder on the electronic structure of conjugated polymers. The case of poly-2,5-bis(phenylethynyl)-1,3,4-thiadiazole
J.M. Granadino-Roldán, M. Fernández-Gómez, Lin-Wang Wang
DOI: 10.1039/C1CP20329K
Size and shape of Au nanoparticles formed in ionic liquids by electron beam irradiation
Shinobu Gonsui, Tetsuya Tsuda, Ken-ichi Fukui
DOI: 10.1039/C1CP20643E
Molecules for organic electronics studied one by one
Jörg Meyer, Anja Wadewitz, Lokamani, Cormac Toher, Roland Gresser, Karl Leo, Moritz Riede, Francesca Moresco
DOI: 10.1039/C1CP20999J
A study of the ethene-ozone reaction with photoelectron spectroscopy: measurement of product branching ratios and atmospheric implications
Grant Copeland, Mariana V. Ghosh, Dudley E. Shallcross, Carl J. Percival, John M. Dyke
DOI: 10.1039/C0CP03004J
Defect processes in orthorhombic LnBaCo2O5.5 double perovskites
I. D. Seymour, A. Chroneos, J. A. Kilner, R. W. Grimes
DOI: 10.1039/C1CP21471C
Excitons in semiconducting carbon nanotubes: diameter-dependent photoluminescence spectra
Yoshihiko Kanemitsu
DOI: 10.1039/C1CP21235D
Bias-controlled selective excitation of vibrational modes in molecular junctions: a route towards mode-selective chemistry
Roie Volkovich, Rainer Härtle, Michael Thoss, Uri Peskin
DOI: 10.1039/C1CP21161G
Electrocatalytic oxygen evolution from water on a Mn(iii–v) dimer model catalyst—A DFT perspective
I. Panas
DOI: 10.1039/C0CP02132F
MnO2/TiN heterogeneous nanostructure design for electrochemical energy storage
Stefanie A. Sherrill, Jonathon Duay, Zhe Gui, Parag Banerjee, Gary W. Rubloff
DOI: 10.1039/C1CP21815H
[MLn]2+ doubly charged systems: modeling, bonding, life times and unimolecular reactivity
DOI: 10.1039/C1CP20622B
您可能还喜欢
3 - (二氟甲基)-1 -氟苯(CAS号:26029-52-7)适用哪些法规指南?
3 - (二氟甲基)-1 -氟苯需遵循联合国全球化学品统一分类和标签制度(GHS),包括急性毒性、皮肤腐蚀/刺激、严重眼损伤/眼刺激等分类。同时,该化合物还需符...
3,5-二甲基苯胺(CAS号:108-69-0)通常如何合成?
3,5-二甲基苯胺通常通过乙苯的氨解反应合成。反应中使用硫酸作为催化剂,反应温度为120-130°C。乙苯在硫酸存在下与氨反应,生成3,5-二甲基苯胺和苯胺副产...
3-甲基异噻唑-5-胺(CAS号:24340-76-9)安全吗?
3-甲基异噻唑-5-胺在适当使用和储存条件下是相对安全的,但在操作时应注意防护措施。应避免吸入粉尘,避免与皮肤和眼睛直接接触。在操作过程中,应穿戴适当的防护装备...
3-(1,3-Thiazol-2-yl)-1H-indole(CAS号:135531-86-1)通常如何合成?
3-(1,3-噻唑-2-基)-1H-吲哚通常通过多步合成方法制备。首先,由噻唑-2-基溴化物和吲哚进行偶联反应,得到中间体。然后,通过还原反应将中间体转化为所需...
4-溴-2-氟苯甲基氯(CAS号:85510-82-3)的主要用途是什么?
4-溴-2-氟苯甲基氯主要用于有机合成中间体,特别是在医药、农药和染料等领域。作为一种具有特定结构的化合物,它在合成复杂有机分子时扮演重要角色。
处理Fmoc-β-(3-噻吩基)-D-Ala-OH(CAS号:220497-90-5)时应注意哪些实验室安全事项?
处理Fmoc-β-(3-噻吩基)-D-Ala-OH时,应佩戴防护手套、护目镜和实验服。操作应在通风橱内进行。如发生泄露,应立即用大量水冲洗,并通知实验室管理人员...
氮化硅(CAS号:12033-89-5)通常如何合成?
氮化硅通常通过氮化硅的直接反应合成,即在高温下将四氯化硅与氨气反应。具体步骤是将四氯化硅和氨气混合并加热至1300-1700℃,在该条件下,四氯化硅与氨气反应生...
Cetirizine EP Impurity B DiHCl(CAS号:1000690-91-4)通常如何合成?
Cetirizine EP Impurity B DiHCl通常通过一锅法合成,首先将4-氯苯基-苯甲基氯甲酸酯与1-哌嗪乙酸反应,生成相应的酸,然后与盐酸反应...
如何储存1-哌啶-4-基丁-1-酮(CAS号:3509-15-7)?
1-哌啶-4-基丁-1-酮应储存在阴凉、干燥的地方,避免阳光直射。存储容器应密封,并确保通风良好。建议储存温度不超过25℃,湿度保持在相对较低的水平。
如何处理含有VORUCICLIB(CAS号:1000023-04-0)的废料?
含有VORUCICLIB的废料应进行专业的收集和处理,包括使用适当的容器进行隔离,避免与其他化学品接触。处理方法通常包括化学中和、沉淀反应或吸附过程,随后进行焚...
来源期刊
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










![2,6-Bis({(2R)-2-[hydroxy(diphenyl)methyl]-1-pyrrolidinyl}methyl)-4-methylphenol structure 2,6-Bis({(2R)-2-[hydroxy(diphenyl)methyl]-1-pyrrolidinyl}methyl)-4-methylphenol structure](https://cnstatic.chemtradehub.com/structs/877/877395-58-9-70bf.webp)



