Underlying Mechanism for the Giant Isochoric Compressibility of Solid $^{4}\mathrm{He}$: Superclimb of Dislocations

Underlying Mechanism for the Giant Isochoric Compressibility of Solid ${}^{4}{He}$ : Superclimb of Dislocations

Ş. G. Söyler, A. B. Kuklov, L. Pollet, N. V. Prokof’ev, and B. V. Svistunov

Phys. Rev. Lett. 103, 175301 – Published 22 October 2009; Erratum Phys. Rev. Lett. 104, 069901 (2010)

Abstract

In the experiment on superfluid transport in solid ${}^{4}{He}$ [Phys. Rev. Lett. 100, 235301 (2008)], Ray and Hallock observed an anomalously large isochoric compressibility: the supersolid samples demonstrated a significant and apparently spatially uniform response of density and pressure to chemical potential, applied locally through Vycor “electrodes.” We propose that the effect is due to superclimb: edge dislocations can climb because of mass transport along superfluid cores. We corroborate the scenario by ab initio simulations of an edge dislocation in solid ${}^{4}{He}$ at $T = 0.5 K$ . We argue that at low temperature the effect must be suppressed due to a crossover to the smooth dislocation.

Received 28 August 2009
Publisher error corrected 2 February 2010

DOI:https://doi.org/10.1103/PhysRevLett.103.175301

Corrections

2 February 2010

Erratum

Publisher’s Note: Underlying Mechanism for the Giant Isochoric Compressibility of Solid ${}^{4}{He}$ : Superclimb of Dislocations [Phys. Rev. Lett. 103, 175301 (2009)]

Ş G. Soyler, A. B. Kuklov, L. Pollet, N. V. Prokof’ev, and B. V. Svistunov

Phys. Rev. Lett. 104, 069901 (2010)

Authors & Affiliations

Ş. G. Söyler¹, A. B. Kuklov², L. Pollet³, N. V. Prokof’ev^1,4, and B. V. Svistunov^1,4

¹Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003, USA
²Department of Engineering Science and Physics, CUNY, Staten Island, New York 10314, USA
³Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
⁴Russian Research Center “Kurchatov Institute,” 123182 Moscow, Russia

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Vol. 103, Iss. 17 — 23 October 2009

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Physical Review Letters

Underlying Mechanism for the Giant Isochoric Compressibility of Solid He4: Superclimb of Dislocations

Ş. G. Söyler, A. B. Kuklov, L. Pollet, N. V. Prokof’ev, and B. V. Svistunov

Phys. Rev. Lett. 103, 175301 – Published 22 October 2009; Erratum Phys. Rev. Lett. 104, 069901 (2010)

Abstract

Corrections

Erratum

Publisher’s Note: Underlying Mechanism for the Giant Isochoric Compressibility of Solid He4: Superclimb of Dislocations [Phys. Rev. Lett. 103, 175301 (2009)]

Ş G. Soyler, A. B. Kuklov, L. Pollet, N. V. Prokof’ev, and B. V. Svistunov

Phys. Rev. Lett. 104, 069901 (2010)

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Underlying Mechanism for the Giant Isochoric Compressibility of Solid ${}^{4}{He}$ : Superclimb of Dislocations

Publisher’s Note: Underlying Mechanism for the Giant Isochoric Compressibility of Solid ${}^{4}{He}$ : Superclimb of Dislocations [Phys. Rev. Lett. 103, 175301 (2009)]