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001037798 1001_ $$0P:(DE-HGF)0$$aŞaşıoğlu, E.$$b0$$eCorresponding author
001037798 245__ $$aSpin gapped metals: A novel class of materials for multifunctional spintronic devices
001037798 260__ $$aAmsterdam$$bNorth-Holland Publ. Co.$$c2025
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001037798 520__ $$aGapped metals, a recently proposed class of materials, possess a band gap slightly above or below the Fermi level, behaving as intrinsic p- or n-type semiconductors without requiring external doping. Inspired by this concept, we propose a novel material class: ”spin gapped metals”. These materials exhibit intrinsic p- or n-type character independently for each spin channel, similar to dilute magnetic semiconductors but without the need for transition metal doping. A key advantage of spin gapped metals lies in the absence of band tails that exist within the band gap of conventional p- and n-type semiconductors. Band tails degrade the performance of devices like tunnel field-effect transistors (causing high subthreshold slopes) and negative differential resistance tunnel diodes (resulting in low peak-to-valley current ratios). Here, we demonstrate the viability of spin gapped metals using first-principles electronic band structure calculations on half-Heusler compounds. Our analysis reveals compounds displaying both gapped metal and spin gapped metal behavior, paving the way for next-generation multifunctional devices in spintronics and nanoelectronics.
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001037798 7001_ $$0P:(DE-HGF)0$$aTas, M.$$b1
001037798 7001_ $$0P:(DE-Juel1)180392$$aGhosh, Sumit$$b2$$ufzj
001037798 7001_ $$0P:(DE-Juel1)190302$$aBeida, Wejdan$$b3$$ufzj
001037798 7001_ $$0P:(DE-HGF)0$$aSanyal, B.$$b4
001037798 7001_ $$0P:(DE-Juel1)130548$$aBlügel, Stefan$$b5$$ufzj
001037798 7001_ $$0P:(DE-HGF)0$$aMertig, I.$$b6
001037798 7001_ $$0P:(DE-HGF)0$$aGalanakis, I.$$b7$$eCorresponding author
001037798 773__ $$0PERI:(DE-600)1479000-2$$a10.1016/j.jmmm.2025.172792$$gp. 172792 -$$p172792 -$$tJournal of magnetism and magnetic materials$$v615$$x0304-8853$$y2025
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001037798 9101_ $$0I:(DE-HGF)0$$6P:(DE-HGF)0$$a Institute of Physics, Martin Luther University Halle-Wittenberg, 06120, Halle (Saale), Germany$$b0
001037798 9101_ $$0I:(DE-HGF)0$$6P:(DE-HGF)0$$a Department of Physics, Gebze Technical University, 41400 Kocaeli, Turkey$$b1
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001037798 9101_ $$0I:(DE-HGF)0$$6P:(DE-Juel1)180392$$a Department of Physics, Central University of Kashmir,Tulmulla, Ganderbal, Jammu and Kashmir, 191131, India$$b2
001037798 9101_ $$0I:(DE-HGF)0$$6P:(DE-Juel1)180392$$a Department of Physics and Astronomy, Uppsala University, 75120, Uppsala, Sweden$$b2
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001037798 9101_ $$0I:(DE-HGF)0$$6P:(DE-Juel1)190302$$a Physics Department, RWTH Aachen University, 52062, Aachen, Germany$$b3
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001037798 9101_ $$0I:(DE-HGF)0$$6P:(DE-HGF)0$$a Institute of Physics, Martin Luther University Halle-Wittenberg, 06120, Halle (Saale), Germany$$b6
001037798 9101_ $$0I:(DE-HGF)0$$6P:(DE-HGF)0$$a Department of Materials Science, School of Natural Sciences, University of Patras, 26504, Patras, Greece$$b7
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