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This adeptly addresses computationally complex problems, offering some of the envisioned capabilities of quantum computers while mitigating their major challenges such as shielding, cooling, and scalability. A recent study demonstrated the successful integer factorization using nanoscale magnetic tunnel junction (MTJ)\u2010based p\u2010bits. However, their stochasticity originates from the superparamagnetic properties of nanoscale MTJs, rendering p\u2010bits sensitive to the temperature and the dimensions of the device. Here, we demonstrate reliable p\u2010bits based on stochastic spin\u2010orbit torque (SOT) switching in micrometer\u2010sized magnetic trilayers. In a Fe\/Ti\/CoFeB structure, two spin currents with orthogonal spin polarizations are generated from the Fe\/Ti bilayer, and their magnitude and sign determine SOT switching polarity of the top perpendicular CoFeB layer. This enables systematic control of the probability of having a \u2018UP\u2019 magnetization state of the CoFeB by either an external magnetic field or applied current for SOT switching. Furthermore, by harnessing the generated p\u2010bit streams, we effectively demonstrate invertible AND gate operations and stochastic neural networks with improved energy and area efficiency, thus highlighting the potential utility of our p\u2010bits in device applications.<\/jats:p>","DOI":"10.1002\/advs.202524371","type":"journal-article","created":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T11:24:18Z","timestamp":1784805858000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Generation of Probabilistic Bits by Exploiting Orthogonal Spin Currents in Magnetic Trilayers"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-6889-3293","authenticated-orcid":false,"given":"Donghyeon","family":"Han","sequence":"first","affiliation":[{"name":"Department of Materials Science and Engineering KAIST  Daejeon South 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