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Related papers: NiTi Single Crystal Growth by Micro-Pulling-Down M…

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We studied two BaFe2-xNixAs2 (Ni-doped Ba-122) single crystals at two dfferent doping levels (underdoped and optimally doped) using an optical spectroscopic technique. The underdoped sample shows a magnetic phase transition around 80 K. We…

Superconductivity · Physics 2015-10-15 Seokbae Lee , Kiyoung Choi , Eilho Jung , Seulki Roh , Soohyeon Shin , Tuson Park , Jungseek Hwang

7M orthorhombic modulated structure in the martensite phase of Ni1.8Pt0.2MnGa is reported by powder neutron diffraction study, which indicates that it is likely to exhibit magnetic field induced strain. The change in the unit cell volume is…

Materials Science · Physics 2012-11-02 Sanjay Singh , K. R. A. Ziebeck , E. Suard , P. Rajput , S. Bhardwaj , A. M. Awasthi , S. R. Barman

This report presents a new synthesis protocol for the single crystal growth of rare earth monopnictide DySb by self-flux technique. A detailed structural, transport and magnetic characterization have been done using X-Ray diffraction (XRD),…

Materials Science · Physics 2023-01-11 Mukesh Kumar Dasoundhi , Archana Lakhani

Nickel vapor-deposited on the SrTiO$_3$(110) surface was studied using scanning tunneling microscopy, photoemission spectroscopy (PES), and density functional theory calculations. This surface forms a (4 $\times$ 1) reconstruction, composed…

In the present work, a simple strategy is used to thermally oxidize TiN nanopowder (ca. 20 nm) to an anatase phase of a TiO2:Ti3+:N compound. In contrast to the rutile phase of such a compound this photocatalyst provides photocatalytic…

Materials Science · Physics 2016-10-21 Xuemei Zhou , Eva M. Zolnhofer , Nhat Truong Nguyen , Ning Liu , Karsten Meyer , Patrik Schmuki

Sr1-xMnxTiO3 (where x = 0.03, 0.05, 0.07 and 0.09) was synthesized via different routes that include solid-state, oxalate precipitation and freeze drying. In oxalate precipitation technique, compositions corresponding to 3 and 5 mol %…

Materials Science · Physics 2012-05-08 K. R. S. Preethi Meher , C. Bogicevic , Pierre-Eymeric Janolin , K. B. R. Varma

We study the structural and magnetic properties of the MnBi inter-metallic compound. The LTP (Low Temperature Phase) MnBi compound is successfully synthesized in single step by vacuum encapsulation technique and rapid quenching from phase…

Strongly Correlated Electrons · Physics 2013-09-26 Nithya R. Christopher , Nidhi Singh , Shiva Kumar Singh , Bhasker Gahtori , S. K. Mishra , A. Dhar , V. P. S Awana

Different samples of Zn1-xMnxO series have been prepared by conventional solid state sintering method. It has been identified, up to what extent of doping enable us to synthesize single-phase polycrystalline Mn doped ZnO samples which is…

Nanodiamonds (NDs) are key materials for building nanoscale quantum sensing, imaging and communication devices. Scalable configuration of single NDs on heterogeneous platforms, forming photonic quantum source arrays, will be an essential…

We study experimentally the intermittent progress of the mechanically induced martensitic transformation in a Cu-Al-Be single crystal through a full-field measurement technique: the grid method. We utilize an in- house, specially designed…

Materials Science · Physics 2015-08-04 Xavier Balandraud , Noemi Barrera , Paolo Biscari , Michel Grédiac , Giovanni Zanzotto

A laser-ultrasonic approach was used to measure elastic properties of a superelastic nickel-titanium wire with the aim to evaluate their evolution with stress and temperature in stress-induced martensite. It was observed that this evolution…

Materials Science · Physics 2025-09-05 Petr Sedlák , Miroslav Frost , Martin Ševčík , Lukáš Kadeřávek , Hanuš Seiner

Extended two-dimensional (2D) crystals of dye molecules adsorbed on 2D material substrates like boron nitride have recently become a subject of intense study, with potential applications ranging from quantum technology to optoelectronics.…

This paper presents a comparative study between two micro-macro modeling approaches to simulate stress-induced martensitic transformation in shape memory alloys (SMA). One model is a crystal plasticity based model and the other describes…

Classical Physics · Physics 2019-06-20 Mame Fall , Etienne Patoor , Olivier Hubert , K Lavernhe -Taillard

Three sets of Co-Ni-Ga alloy nanoparticles have been synthesized by a template-free chemical route. Structural, morphological, shape memory, and magnetic properties of room temperature martensite (M) phase, dual (M + secondary $\gamma$)…

Materials Science · Physics 2025-05-22 Debraj Mahata , Ananthakrishnan Srinivasana

Irreversible plastic forming of B19$^\prime$ martensite of the NiTi shape memory alloy is discussed within the framework of continuum mechanics. It is suggested that the main mechanism arises from coupling between martensite reorientation…

Materials Science · Physics 2024-11-01 Hanuš Seiner , Petr Sedlák , Miroslav Frost , Petr Šittner

The miniaturization of semiconductor devices to the scales where small numbers of dopants can control device properties requires the development of new techniques capable of characterizing their dynamics. Investigating single dopants…

Mesoscale and Nanoscale Physics · Physics 2017-06-28 Mohammad Rashidi , Wyatt Vine , Jacob A. J. Burgess , Marco Taucer , Roshan Achal , Jason L. Pitters , Sebastian Loth , Robert A. Wolkow

In the present study, structural changes due to gradual doping of Sr in BaTiO3 were investigated by both x-ray and neutron powder diffraction techniques. Ba1-xSrxTiO3 (x=0.0, 0.5 and 1.0) samples were synthesized by PVA evaporation method…

Materials Science · Physics 2020-07-03 I. B. Elius , B. M. Asif , J. Maudood , T. K. Datta , A. K. M. Zakaria , S. Hossain , M. S. Aktar , I. Kamal

Martensitic transformations are strain driven displacive transitions governing the mechanical and physical properties in intermetallic materials. This is the case in Ni$_2$MnGa, where the martensite transition is at the heart of the…

Materials Science · Physics 2020-03-19 Fabio Orlandi , Aslı Çakır , Pascal Manuel , Dmitry D. Khalyavin , Mehmet Acet , Lara Righi

Changes in temperature or stress state may induce reversible B2$\leftrightarrow$(R)$\leftrightarrow$ B19' martensitic transformations and associated shape memory effects in close-to-stoichiometric nickel-titanium (NiTi) alloys. Recent…

Materials Science · Physics 2014-03-21 David Holec , Martin Friák , Antonín Dlouhý , Jörg Neugebauer

We carried out a comprehensive crystal structure characterization of Ti-doped lithium ruthenate (Li$_2$Ti$_x$Ru$_{1-x}$O$_3$), to investigate the effect of Ti-doping on the structural phase transition. Experimental tools sensitive to the…