Electronic Resource

Hidden order and exotic superconductivity in the heavy-fermion compound URu2Si2

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In this thesis, the author investigates hidden-order phase transition at T0 = 17.5 K in the heavy-fermion URu2Si2. The four-fold rotational symmetry breaking in the hidden order phase, which imposes a strong constraint on the theoretical model, is observed through the magnetic torque measurement. The translationally invariant phase with broken rotational symmetry is interpreted as meaning that the hidden-order phase is an electronic “nematic” phase. The observation of such nematicity in URu2Si2 indicates a ubiquitous nature among the strongly correlated electron systems.

The author also studies the superconducting state of URu2Si2 below Tc = 1.4 K, which coexists with the hidden-order phase. A peculiar vortex penetration in the superconducting state is found, which may be related to the rotational symmetry breaking in the hidden-order phase. The author also identifies a vortex lattice melting transition. This transport study provides essential clues to the underlying issue of quasiparticle dynamics as to whether a quasiparticle Bloch state is realized in the periodic vortex lattice.

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Ketersediaan

Informasi Detail

Judul Seri

Springer Theses

No. Panggil

E1802

Penerbit

Tokyo : Springer Tokyo., 2013

Deskripsi Fisik

xiii, 102 hlm. : il. warna.

Bahasa

English

ISBN/ISSN

9784431545927

Klasifikasi

NONE

Tipe Isi

text

Tipe Media

computer

Tipe Pembawa

online resource

Edisi

-

Subjek

Superkonduktivitas : Magnet
Senyawa Fermion Berat : Konduktivitas

Info Detail Spesifik

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Pernyataan Tanggungjawab

Ryuji Okazaki

Versi lain/terkait

Lampiran Berkas

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