Article
Chemistry, Physical
Atakan Tekgul
Summary: The Ni-54(FeMn)(19)Ga-27 Heusler alloy exhibits a mixed-phase structure with ferromagnetic to paramagnetic phase transition at room temperature and a high Curie temperature. The alloy has a saturation magnetization of 53.97 Am(2)kg(-1) under 2 T magnetic field and shows a second-order phase transition with a magnetic entropy change of about 1.5 J kg(-1)K(-1) under the same magnetic field.
Article
Chemistry, Physical
A. F. Manchon-Gordon, J. J. Ipus, M. Kowalczyk, J. S. Blazquez, C. F. Conde, P. Svec, T. Kulik, A. Conde
Summary: The influence of fabrication method on the magnetostructural properties of Ni55Fe19Ga26 Heusler alloy was analyzed, showing differences in martensitic structure and transformation temperature between ribbon and bulk samples. The different grain sizes led to varied phase transformation behaviors, with martensitic transformation occurring mainly in the paramagnetic regime.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Konstantin V. Larionov, Jose J. Pais Pereda, Songtian Li, Seiji Sakai, Pavel B. Sorokin
Summary: Integrating half-metallic materials and 2D spacers into vertical magnetoresistive spin valves may lead to effective low-power consumption storage and memory technologies. The study investigated magnetic tunnel junctions based on ferromagnetic CFGG Heusler alloy and MoS2 spacers of different thicknesses, demonstrating a large magnetoresistance value. The findings support the development of spintronics devices utilizing half-metallic Heusler alloys and diverse transition metal dichalcogenide family.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Chalchisa Getachew Adamo, Ashutosh Srivastava, Surafel Shiferaw Legese, Yoshihito Kawamura, Ayansa Tolesa Serbesa, Sreeram Punathil Raman, Femi Emmanuel Olu, Chandra Sekhar Tiwary, Abhishek Kumar Singh, Kamanio Chattopadhyay
Summary: This study introduces a pioneering high-entropy half-Heusler alloy, ZrTiNiFeSnSb, which significantly reduces the lattice thermal conductivity through phonon scattering from multiple elements. It shows elevated electrical conductivity and a moderate Seebeck coefficient, making it a promising thermoelectric material.
Article
Materials Science, Multidisciplinary
Telem Simsek, Iskender Ozkul, Canan Aksu Canbay, Baris Avar, Tuncay Simsek, Seval Hale Guler, Sadan Ozcan, Omer Guler, Arun K. Chattopadhyay
Summary: This study discusses the structural, morphological, thermal, and magnetic properties of equiatomic CoNiMnGaSi (base), CoNiMnGaSiCu, CoNiMnGaSiSn, and CoNiMnGaSiSb alloys. XRD and DTA techniques were used to determine the formation of a solid-solution nanocrystalline bcc structure. SEM-EDS analyses showed the homogeneous distribution of elements. The addition of Cu and Sn decreased the saturation magnetization, while the addition of Sb had no significant effect. CoNiMnGaSiSb exhibited the highest Curie Temperature of 670 K, making it a promising candidate for power industry-related applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Physical
Nguyen Van Du, Woo Hyun Nam, Jung Young Cho, Nguyen Vu Binh, Pham Thanh Huy, Do Quang Trung, Duong Anh Tuan, Weon Ho Shin, Soonil Lee
Summary: A new synthetic method was introduced to prepare high-performance (Ti0.5Zr0.5)(1-x)NbxNiSn compounds, achieving high chemical homogeneity, single-phase structure, and fine grain size of about 300 nm. The maximum ZT value of 1.19 was achieved, comparable to the highest reported for similar compounds, with promising output power density and efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Physics, Condensed Matter
M. Shakil, Halima Sadia, I. Zeba, S. S. A. Gillani, Shabbir Ahmad, M. Zafar
Summary: This study investigated a quaternary Heusler alloy CoYVSn using DFT, revealing the most stable structural and magnetic phases. The alloy's stability, thermal stability, and high Curie temperature suitability for spintronics applications were confirmed.
SOLID STATE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Ruikuan Xie, Zhufeng Hou, Guo-Liang Chai
Summary: This study investigates the potential of Heusler alloys as catalysts for electrochemical CO2 reduction reactions (ECO2RR) using density functional theory calculations. It breaks the linear scaling relationship between adsorption energies of CHO (and COOH) and CO intermediates, allowing for regular tuning of overpotential. Cu2ZnAl is found to be the most active catalyst, with 41% improvement in energy efficiency compared to pure Cu electrode. The study also encourages further exploration in this research area by suggesting the search for promising candidates among the thousands of Heusler alloys discovered experimentally.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Sourav Mandal, Tapan Kumar Nath
Summary: In this study, a Ni-Mn-X (X = Sn, In) type off-stoichiometric, polycrystalline magnetic shape memory alloy (MSMA) with nominal composition Ni42Mn43Cr4Sn11 (at. %) was thoroughly investigated. The alloy exhibited significant magnetic refrigeration properties close to room temperature due to doping with Cr at the Ni site. It crystallized into coexisting cubic L21 austenite and tetragonal L10 martensite phases, with the former being the dominant phase at room temperature. The alloy showed a wide working temperature range, large magnetic entropy changes, and high refrigerant capacities, making it a promising candidate for magnetic refrigeration applications near room temperature and opening up new research avenues for Heusler alloys of this type.
Article
Materials Science, Composites
S. Sandeep Nambiar, B. R. N. Murthy, Sathyashankara Sharma, A. A. Prasanna
Summary: In this study, Ni-Mn-Sn-Fe-In-based quinary Heusler alloys were investigated for their martensitic transformation and mechanical properties near room temperature. It was found that the L2(1) cubic structure austenite phase of the alloy transforms into L1(0) orthorhombic martensite phase with higher Fe substitution. The stoichiometry of the alloy composition also affected the martensitic transformation temperature, with a shift towards the near-room-temperature range. Magnetic measurements confirmed the presence of a dual magnetic phase, and magnetic susceptibility testing supported the results.
JOURNAL OF COMPOSITES SCIENCE
(2023)
Article
Chemistry, Physical
Ondrej Zivotsky, Katerina Skotnicova, Tomas Cegan, Jan Jurica, Lucie Gembalova, Frantisek Zazimal, Ivo Szurman
Summary: Ternary Mn2FeSi alloy was synthesized through mechanical alloying and its structure and lattice parameters were confirmed. The prepared samples exhibited a heterogeneous magnetic structure consisting of a dominant paramagnetic phase and a weak ferro-/ferrimagnetic contribution.
Article
Engineering, Chemical
Mohamed Salaheldeen, Ahmed Talaat, Mihail Ipatov, Valentina Zhukova, Arcady Zhukov
Summary: In this work, nanocrystalline Co2MnSi Heusler alloy glass-coated microwires were successfully fabricated for the first time. The microwires showed well-defined crystalline structures and unique magnetic behavior at a wide range of temperature and magnetic fields, making them promising for magnetic sensing and spintronic applications.
Article
Materials Science, Multidisciplinary
P. Sivaprakash, Ikhyun Kim, S. Divya, Sugato Hajra, Tae Hwan Oh, S. Esakki Muthu
Summary: The structural, magnetic, and magnetocaloric characteristics of bulk Cu-doped Ni47Mn40-sCusIn13 Heusler alloys were studied. Copper substitution in the Mn-site reduces the structural and magnetic phase transition temperatures. The alloys exhibit metamagnetic behavior and positive magnetic entropy changes, with the s = 1 alloy showing a higher maximal magnetic entropy change compared to the s = 0 alloy.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Materials Science, Ceramics
Shaleni Venkatesan, S. Kavita, Suresh Perumal
Summary: Ni-Mn-In Heusler alloys have attracted considerable attention in magnetic refrigeration due to their eco-friendliness and large magnetocaloric response. This study found that the Ni45Co5Mn37In12Si1 alloy, heat-treated for 15 hours, exhibited larger grains and a dendritic structure, along with a significant change in magnetic entropy and refrigeration capacity, making it suitable for magnetic refrigeration applications.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
R. Sewak, C. C. Dey, D. Toprek
Summary: Ferromagnetism in Hf6Co23 intermetallic alloy at room temperature has been confirmed through perturbed angular correlation measurements using the 181Hf probe. The hyperfine magnetic field strength and the behavior at impurity sites have been studied. Additionally, the stability relationship between Hf2Co7 phase and Hf6Co23 was explored.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Melike Kaya, Ilker Dincer, Selcuk Akturk, Yalcin Elerman
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2016)
Article
Materials Science, Multidisciplinary
M. Kaya, M. M. Cicek, I. Dincer, Y. Elerman
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2017)
Article
Materials Science, Multidisciplinary
Senem Saritas, Melike Kaya, Ilker Dincer, Yalcin Elerman
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2017)
Article
Materials Science, Multidisciplinary
Ali Osman Ayas, Mustafa Akyol, Selda Kilic Cetin, Melike Kaya, Ilker Dincer, Ahmet Ekicibil, Yalcin Elerman
PHILOSOPHICAL MAGAZINE
(2017)
Article
Materials Science, Multidisciplinary
M. Kaya, Y. Elerman, I. Dincer
PHILOSOPHICAL MAGAZINE
(2018)
Article
Materials Science, Multidisciplinary
S. V. Stetsyura, S. A. Klimova, S. B. Wenig, I. V. Malyar, M. Arslan, I. Dincer, Y. Elerman
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2012)
Article
Materials Science, Multidisciplinary
M. Kaya, S. Yildirim, E. Yuzuak, I. Dincer, R. Ellialtioglu, Y. Elerman
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2014)
Article
Physics, Condensed Matter
Melike Kaya, Majid Rezaeivala, Ercument Yuzuak, Selcuk Akturk, Ilker Dincer, Yalcin Elerman
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2015)
Article
Geochemistry & Geophysics
M. Yesiltas, M. Kaya, T. D. Glotch, R. Brunetto, A. Maturilli, J. Helbert, M. E. Ozel
METEORITICS & PLANETARY SCIENCE
(2020)
Article
Nanoscience & Nanotechnology
S. A. Klimova, S. Stetsyura, S. B. Venig, M. Kaya, I Dincer, Y. Elerman, A. A. Skaptsov
INTERNATIONAL JOURNAL OF NANOTECHNOLOGY
(2018)
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)
