Article
Physics, Multidisciplinary
Vidya Alman, Anil Annadi, M. A. Khan, Vidyadhar Singh, Murtaza Bohra
Summary: Understanding the coexistence of normal and inverse magnetocaloric effects is important for magnetic cooling applications. This study investigates the selection of Ni95Cr5 layers and their magnetocaloric effects in a wide temperature range. The results show a correlation between the change in magnetic anisotropy and the reversal of magnetocaloric effects.
Article
Materials Science, Multidisciplinary
S. Sachin, A. A. Prasanna, C. Ningappa
Summary: High positive magnetic entropy change Delta S-m and large magnetoresistance (MR) were measured in the martensite transition in Ni50Mn30-xFexSn20-ySby alloys. The study showed a dependence of MR on composition change, with different alloys exhibiting varying performance.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
Huicai Xie, Lu Tian, Qi Chen, Hao Sun, Xinqiang Gao, Zhenxing Li, Zhaojun Mo, Jun Shen
Summary: The study demonstrates that the magnetocaloric material LiHoF4 exhibits a giant and reversible low field magnetocaloric effect at low temperatures, making it a high-performance and practical candidate for cryogenic magnetic refrigeration.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
G. B. Huang, Y. S. Du, X. F. Wu, L. Ma, L. Li, G. Cheng, J. Wang, J. T. Zhao, G. H. Rao
Summary: The structure, magnetic transition, and magnetocaloric effect of (Ho2-xYx)Fe17 (x = 0, 0.5, 1, and 1.5) intermetallic compounds were investigated. The results showed that these compounds have a tunable Curie temperature and considerable magnetocaloric effect, making them potential candidates for room-temperature magnetic refrigerants.
Article
Chemistry, Applied
Xinluona Su, Yuta Nakasaka, Ren Moriwaki, Takuya Yoshikawa, Takao Masuda
Summary: The diffusivities of phenol and toluene within H-Y zeolite in different solvents were measured and studied. The presence of solvent affected the diffusion mechanism of toluene, while the strong adsorption of phenol on the acid sites decreased its diffusivity. The diffusivities of phenol in the three solvents followed the order of 2-propanol > cyclohexane > mesitylene.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Physical
Jun Yan, Yi Wang, Yunlin Chen
Summary: The study focuses on enhancing the magnetocaloric effect (MCE) by combining negative and positive magnetocaloric effects (NMCE and PMCE). By analyzing the magnetic phases and the effects of substituting elements in Mn3GaC, the control of MCE is achieved, expanding the working temperature range. This research is significant for developing magnetocaloric materials with a large MCE and a wide working temperature range.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Physics, Multidisciplinary
Alejandra I. Guerrero
Summary: The magnetocaloric properties of the J(x) - J(y) Blume-Capel model with J(x)/J(y) = -0.5 were investigated using the two point approximation of the Cluster Variation Method. The phase diagrams exhibited different phases depending on the anisotropy parameter, magnetic field, temperature, and exchange interaction ratio. The study found a tricritical point and reentrant behavior for a specific anisotropy parameter value of D = 1.45, and observed both inverse and direct magnetocaloric effects, with the inverse effect being enhanced at low fields and temperatures around jumps between magnetization plateaus.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Lu Tian, Bo Xu, Huan Chen, Zhaojun Mo, Zhenxing Li, Guodong Liu, Jun Shen
Summary: Based on experimental and theoretical results, the magnetic properties, magnetic phase transitions, and magnetocaloric effect (MCE) of TmNi2Si2 were studied. It was confirmed that TmNi2Si2 undergoes a field-induced phase transition from meta-magnetic to ferromagnetic under magnetic fields exceeding 0.2 T. A large reversible cryogenic MCE was observed, with a maximum magnetic entropy change (-?S-M(max)) of 15.4 J kg(-1) K-1 and a refrigeration capacity of 68.0 J kg(-1) when changing the magnetic field from 0 to 2 T. The observed reversible MCE under low magnetic field change indicates the potential application of TmNi2Si2 in cryogenic magnetic refrigerators.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Physical
Gabriela Souca, Roxana Dudric, Ruxandra Cotop, Karsten Kuepper, Coriolan Tiusan, Romulus Tetean
Summary: The electronic structure, magnetic properties, and magnetocaloric effect of GdCo2-xNix alloys were investigated. The experiments and calculations confirmed the antiferromagnetic ground state, coupling between Gd and transition metals, and reduction of Co magnetic moments when substituting Ni. The presence of a second order magnetic phase transition was also observed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
A. Maurya, A. Thamizhavel, S. K. Dhar
Summary: We present a study on the magnetocaloric effect (MCE) and magnetic phase diagram of the quaternary compound EuRhAl4Si2. The MCE is found to exhibit a non-monotonic behavior with magnetic fields and temperatures, showing both normal and inverse MCE. Our high-resolution magnetization measurements reveal the occurrence of first order minor magnetization jumps with emergent phase separation below 5.5 K, within the magnetization plateau state.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Siyuan Huang, Liang Qin, Yong Li, Lingwei Li
Summary: The doping of rare earth Y was found to significantly impact the crystal structure, martensitic transformation temperature, and magnetocaloric effect of Mn-Ni-Co-Ti alloy, leading to enhanced magnetic entropy change and refrigerant capacity.
Article
Materials Science, Multidisciplinary
Pawel Peczkowski, Maciej Luszczek, Elzbieta Szostak, Naveen Kumar Chogondahalli Muniraju, Anna Krzton-Maziopa, Lukasz Gondek
Summary: This paper reports comprehensive studies of the electronic properties of Ba(1-x)K(x)Bi(1-y)REyO(3) bismuth perovskites (REBKBO, RE = Y , La or Pr), showing that these materials can have their electronic properties tailored by doping, with significant differences observed in the spectrum of PrBKBO due to the magnetic contribution of Pr3+ multiplet. A negative magnetocaloric effect was observed below 30 K, highlighting the peculiar properties of these materials.
Article
Materials Science, Multidisciplinary
Fei Gao, Jieming Sheng, Weijun Ren, Qiang Zhang, Xiaohua Luo, Ji Qi, Mengru Cong, Bing Li, Liusuo Wu, Zhidong Zhang
Summary: In this study, we investigated the magnetic structure and magnetocaloric effect of the ternary compound HoAl2Ge2. We found that HoAl2Ge2 exhibits an incommensurate spin density wave and has a special arrangement of magnetic moments, resulting in interesting physical phenomena and large magnetocaloric effects. We also examined the influence of magnetic field on the magnetocaloric effect and discussed the mechanism behind the observed effects.
Article
Chemistry, Physical
G. F. Wang, W. Ren, B. Y. Yang
Summary: By investigating the magnetocaloric effect and phase transition of La-0.7(La-Ce)(0.3)FexAl11.5-xSi1.5 alloys, it was found that the Curie temperature decreases and the magnetocaloric effect increases with the increase of x value. Analysis of the Belov-Arrott plot and the exponent of n revealed that the magnet phase transition in the alloys weakens with decreasing x value.
Article
Physics, Applied
Aquil Ahmad, Srimanta Mitra, S. K. Srivastava, A. K. Das
Summary: A giant magnetocaloric effect was observed in Co2FeAl Heusler alloy nanoparticles near the ferromagnetic to paramagnetic phase transition, with a positive anomaly in magnetic entropy change and a linear increase with magnetic field. The nature of the phase transition was confirmed to be second-order based on the Arrott plot and universal curve analysis.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Physics, Applied
Anna K. Suszka, Sebastian Gliga, Peter Warnicke, Sebastian Wintz, Susmita Saha, Kristin M. Charipar, Heungsoo Kim, Phillip Wohlhuter, Eugenie Kirk, Simone Finizio, Jorg Raabe, James D. S. Witt, Laura J. Heyderman, Nicholas S. Bingham
APPLIED PHYSICS LETTERS
(2018)
Article
Nanoscience & Nanotechnology
H. Kim, N. A. Charipar, J. Figueroa, N. S. Bingham, A. Pique
Article
Engineering, Electrical & Electronic
Scott A. Mathews, Nicholas S. Bingham, Ryan J. Suess, Kristin M. Charipar, Raymond C. Y. Auyeung, Heungsoo Kim, Nicholas A. Charipar
IEEE TRANSACTIONS ON MAGNETICS
(2019)
Article
Nanoscience & Nanotechnology
R. P. Madhogaria, R. Das, E. M. Clements, V. Kalappattil, N. S. Bingham, M. H. Phan, H. Srikanth
Article
Nanoscience & Nanotechnology
Xiaoyu Zhang, Yuyang Lao, Joseph Sklenar, Nicholas S. Bingham, Joseph T. Batley, Justin D. Watts, Cristiano Nisoli, Chris Leighton, Peter Schiffer
Article
Materials Science, Multidisciplinary
R. P. Madhogaria, E. M. Clements, V Kalappattil, M. H. Phan, H. Srikanth, R. Das, N. T. Dang, D. P. Kozlenko, N. S. Bingham
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2020)
Article
Materials Science, Multidisciplinary
E. Kirk, C. Bull, S. Finizio, H. Sepehri-Amin, S. Wintz, A. K. Suszka, N. S. Bingham, P. Warnicke, K. Hono, P. W. Nutter, J. Raabe, G. Hrkac, T. Thomson, L. J. Heyderman
PHYSICAL REVIEW MATERIALS
(2020)
Article
Chemistry, Physical
R. Das, N. T. Dang, V Kalappattil, R. P. Madhogaria, D. P. Kozlenko, S. E. Kichanov, E. Lukin, A. Rutkaukas, T. P. T. Nguyen, L. T. P. Thao, N. S. Bingham, H. Srikanth, M. H. Phan
Summary: The structural and magnetic properties of quasi-one-dimensional spin-chain compounds Ca3Co2-xFexO6 were systematically studied, with Fe doping influencing the magnetic interactions and leading to spin state crossovers of Co ions. Magnetization measurements revealed that Fe substitution weakened both intra and interchain magnetic interactions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Physics, Multidisciplinary
Claire Donnelly, Konstantin L. Metlov, Valerio Scagnoli, Manuel Guizar-Sicairos, Mirko Holler, Nicholas S. Bingham, Jorg Raabe, Laura J. Heyderman, Nigel R. Cooper, Sebastian Gliga
Summary: The study demonstrates the imaging of closed magnetic vortex rings in a micro-magnet using X-ray magnetic nanotomography, revealing their stability and form, opening up new possibilities for research and applications of complex three-dimensional magnetic structures.
Article
Physics, Multidisciplinary
N. S. Bingham, S. Rooke, J. Park, A. Simon, W. Zhu, X. Zhang, J. Batley, J. D. Watts, C. Leighton, K. A. Dahmen, P. Schiffer
Summary: In this study, magnetic-field-induced avalanches were measured in a square artificial spin ice array of interacting nanomagnets. The evolution statistics of the moment configuration showed good agreement with the canonical one-dimensional random field Ising model. Information about the microscopic structure of the arrays was extracted from macroscopic measurements of their collective behavior, showing potential for application to other systems exhibiting avalanches.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
N. S. Bingham, X. Zhang, J. Ramberger, O. Heinonen, C. Leighton, P. Schiffer
Summary: In this study, we investigated the temperature and magnetic field dependence of the total magnetic moment of large-area permalloy artificial square spin ice arrays. Our findings showed that the hysteresis behavior and temperature dependence are consistent with the Stoner-Wohlfarth model, with deviations observed at small lattice spacing due to interisland interactions. Through micromagnetic simulations, we further explored the complex magnetization reversal induced by interisland interactions, highlighting the critical role of island shapes in tuning the physical properties of artificial spin ice structures and other nanomagnet systems.
PHYSICAL REVIEW LETTERS
(2022)
Article
Multidisciplinary Sciences
Xiaoyu Zhang, Grant Fitez, Shayaan Subzwari, Nicholas S. Bingham, Ioan-Augustin Chioar, Hilal Saglam, Justin Ramberger, Chris Leighton, Cristiano Nisoli, Peter Schiffer
Summary: We investigated a model nanomagnetic array where the behavior of magnetic moments is visibly affected by constraints imposed by the system's topology. Magnetic excitations in this system form thermally active one-dimensional strings, and their motion can be observed in real time.
Article
Physics, Multidisciplinary
Xiaoyu Zhang, Ioan-Augustin Chioar, Grant Fitez, Anthony Hurben, Michael Saccone, Nicholas S. Bingham, Justin Ramberger, Chris Leighton, Cristiano Nisoli, Peter Schiffer
Summary: The collective behavior of interacting arrays of nanomagnetic tripods is studied. Experimental data show that triangular lattice arrays form a tripod ice with charge ordering among the effective vertex magnetic charges, similar to artificial kagome spin ice. The interacting tripods have effective moments that act as emergent local variables, with connections to the Potts and clock models. Our results provide a new approach to study the collective behavior of nonbinary moments that is not available in other physical systems.
PHYSICAL REVIEW LETTERS
(2023)
Article
Materials Science, Multidisciplinary
S. Saha, M. Zelent, S. Finizio, M. Mruczkiewicz, S. Tacchi, A. Suszka, S. Wintz, N. S. Bingham, J. Raabe, M. Krawczyk, L. J. Heyderman
Article
Materials Science, Multidisciplinary
R. P. Madhogaria, R. Das, E. M. Clements, V Kalappattil, M. H. Phan, H. Srikanth, N. T. Dang, D. P. Kozlenko, N. S. Bingham
