Uzun, UtkuLamuta, CaterinaYetmez, Mehmet2023-11-222023-11-222022Uzun, U., Lamuta, C., ve Yetmez, M. (2022). Nanoindentation creep behavior of single-crystal Bi2Se3 topological insulator.Physica Status Solidi B-Basic Solid State Pyhsics, 259(4).1521-3951https://doi.org/10.1002/pssb.202100481https://hdl.handle.net/20.500.13099/183A single-crystal Bi2Se3 topological insulator is fabricated using the Bridgman-Stockbarger method. The crystal structure and atomic lattice parameters are identified by X-ray diffraction analysis. The nanoindentation size effect on creep displacement, activation volume, and strain rate sensitivity (SRS) with different maximum holding loads between 1000 and 5000 mu N is investigated using depth-sensing nanoindentation. Furthermore, the effect of the loading rate on the steady-state creep displacement and SRS is analyzed and discussed. Results show Bi2Se3's low resistance to plastic deformation and a significant increase of creep displacement with increasing holding load and holding rate. Additionally, creep strain rate, activation volume, and SRS are also calculated from the secondary stage creep, and results are compared with those of other flexible electronic materials.enginfo:eu-repo/semantics/OpenAccessactivation volumebismuth selenidecreepsingle crystalstrain ratesensitivityChemical activationCreepCrystal atomic structureElectric insulatorsNanoindentationSelenium compoundsSingle crystalsStrain rateX ray powder diffractionActivation straineActivation volumeBridgman-Stockbarger methodCreep behaviorsCreep displacementCrystals structuresNanoindentation creepsStrain-rate sensitivityTopological insulatorsVolume ratearticle10.1002/pssb.202100481259419Q3WOS:0007443220000012-s2.0-85122863842