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The temperature dependence of paramagnetic susceptibility of the superfluid^{3}He-B in aerogel is found. Calculations have been performed for an arbitraryphase shift of s-wave scattering in the framework of BCS weak coupling theoryand the simplest model of aerogel as an aggregate of homogeneously distributedordinary impurities. Both limiting cases of the Born and unitary scattering canbe easily obtained from the general result. The existence of gaplesssuperfluidity starting at the critical impurity concentration depending on thevalue of the scattering phase has been demonstrated. While larger than in thebulk liquid the calculated susceptibility of the B-phase in aerogel proves tobe conspicuously smaller than that determined experimentally in the highpressure region.Comment: 10 pages, 4 figures, REVTe

physical review. b, condensed matter

Spin susceptibility of the superfluid<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">He</mml:mi><mml:mo>−</mml:mo><mml:mi>B</mml:mi></mml:math>in aerogel

Spin susceptibility of the superfluid3He−Bin aerogel