64 citations · 263 across the 17 of their papers we have counts for
17 papers
Specific heat analyses on optical-phonon-derived uniaxial negative thermal expansion system Zr ( = Fe and CoNi)
Yuto Watanabe, Ceren Tayran, Md. Riad Kasem +4
Recently, huge uniaxial negative thermal expansion (NTE) along a -axis has been observed in transition-metal () zirconides Zr with a tetragonal CuAl-type str…
Large self-heating by trapped-flux reduction in Sn-Pb solders
Yoshikazu Mizuguchi, Takumi Murakami, Md. Riad Kasem +1
Magnetic flux trapping in field-cooled (FC) Sn-Pb solders has been recently studied because of the observation of nonvolatile magneto-thermal switching [H. Arima et al., Commun. Ma…
Vortex formation and exotic superconducting states in field-cooled Sn-Pb solders
Takumi Murakami, Md. Riad Kasem, Hiroto Arima +3
Formation of vortices is a typical phenomenon of type-II superconductors under magnetic fields (H). In contrast, type-I superconductors do not host vortices because of their Meissn…
Observation of nonvolatile magneto-thermal switching in superconductors
Hiroto Arima, Md. Riad Kasem, Hossein Sepehri-Amin +5
Applying a magnetic field to a solid changes its thermal-transport properties. Although such magneto-thermal-transport phenomena are usually small effects, giant magneto-thermal re…
Magneto-thermal-switching properties of superconducting Nb
Miku Yoshida, Md. Riad Kasem, Aichi Yamashita +2
Recently, thermal switching has been extensively studied because it is a key component for thermal management in electronic devices. Here, we show a huge magneto-thermal-switching…
Axis thermal expansion switching in transition-metal zirconides TrZr2 by tuning the c/a ratio
Hiroto Arima, Md. Riad Kasem, Yoshikazu Mizuguchi
This study examines the temperature-dependent evolution of the lattice constants for various CuAl2-type compounds, including NiZr2, (Co,Rh,Ir)Zr2, (Fe,Co,Rh,Ir)Zr2, and (Co,Ni,Cu,R…
Glassy atomic vibrations and blurry electronic structures created by local structural disorders in high-entropy metal telluride superconductors
Yoshikazu Mizuguchi, Hidetomo Usui, Rei Kurita +10
The motivation of this work is our recent observation of the robustness of superconductivity in a High-entropy (HE) superconductor Ag0.2In0.2Sn0.2Pb0.2Bi0.2Te (CsCl-type) to extern…
Superconductivity of high-entropy-alloy-type transition-metal zirconide (Fe,Co,Ni,Cu,Ga)Zr2
Md. Riad Kasem, Hiroto Arima, Yoichi Ikeda +2
We synthesized a new high-entropy-alloy-type (HEA-type) superconductor (Fe,Co,Ni,Cu,Ga)Zr2 with a Tc of 2.9 K. The EDX analyses revealed that the actual composition of the transiti…
Anomalous thermal expansion in a CuAl2-type superconductor CoZr2
Yoshikazu Mizuguchi, Md. Riad Kasem, Yoichi Ikeda
In this work, we show that the CuAl2-type superconductor CoZr2 and alloyed systems exhibit anomalous thermal expansion in a wide temperature range. We performed neutron powder diff…
Tuning of Carrier Concentration and Superconductivity in High-Entropy-Alloy-Type Metal Telluride (AgSnPbBi)(1-x)/4InxTe
Md. Riad Kasem, Ryota Ishii, Takayoshi Katase +2
High-entropy-alloy-type (HEA-type) compound superconductors have been drawing much attention as a new class of exotic superconductors with local structural inhomogeneity. NaCl-type…
Estimation of Grüneisen parameter of high-entropy-alloy-type functional materials
F. I. Abbas, Y. Nakahira, A. Yamashita +9
In functional materials like thermoelectric materials and superconductors, the interplay between functionality, electronic structure, and phonon characteristics is one of the key f…
Robustness of superconductivity to external pressure in high-entropy-alloy-type metal telluride AgInSnPbBiTe5
Md. Riad Kasem, Yuki Nakahira, Hitoshi Yamaoka +7
High-entropy-alloy (HEA) superconductors are a new class of disordered superconductors. In this study, we investigate the robustness of superconducting states in HEA-type metal tel…
Superconductivity in In-doped AgSnBiTe3 with possible band inversion
Tsubasa Mitobe, Kazuhisa Hoshi, Md. Riad Kasem +9
We investigated the chemical pressure effects on structural and electronic properties of SnTe-based material using partial substitution of Sn by Ag0.5Bi0.5, which results in lattic…
Anomalous broadening of specific heat jump at Tc in high-entropy-alloy-type superconductor TrZr2
Md. Riad Kasem, Aichi Yamashita, Taishi Hatano +3
A high-entropy-alloy-type (HEA-type) superconductor is new category of highly disordered superconductors. Therefore, finding brand-new superconducting characteristics in the HEA-ty…
Synthesis of high-entropy-alloy-type superconductors (Fe,Co,Ni,Rh,Ir)Zr2 with tunable transition temperature
Md. Riad Kasem, Aichi Yamashita, Yosuke Goto +2
We report on the synthesis and superconductivity of high-entropy-alloy-type (HEA-type) compounds TrZr2 (Tr = Fe, Co, Ni, Rh, Ir), in which the Tr site satisfies the criterion of HE…
Superconductivity in CuAl2-type Co0.2Ni0.1Cu0.1Rh0.3Ir0.3Zr2 with a high-entropy-alloy transition metal site
Yoshikazu Mizuguchi, Md. Riad Kasem, Tatsuma D. Matsuda
Research on high-entropy-alloy (HEA) superconductors is a growing field in material science. In this study, we explored new HEA-type superconductors and discovered a CuAl2-type sup…
Superconducting properties of high-entropy-alloy tellurides M-Te (M: Ag, In, Cd, Sn, Sb, Pb, Bi) with a NaCl-type structure
Md. Riad Kasem, Kazuhisa Hoshi, Rajveer Jha +6
High-entropy-alloy-type tellurides M-Te, which contain five different metals of M = Ag, In, Cd, Sn, Sb, Pb, and Bi, were synthesized using high pressure synthesis. Structural chara…