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10 items by relevance
1 PhD Thesis

Neutron scattering studies of two-dimensional antiferromagnetic spin fluctuations in insulating and superconducting S = ½ systems

Christensen, Niels Bech

Risø National Laboratory — 2005

In this thesis, neutron scattering techniques are used to study the magnetic excitations in two materials which derive from two-dimensional square lattices of S = 1/2 spins. Within these planes, nearest neighbor spins are known to interact predominantly via antiferromagnetic Heisenberg exchange

Year: 2005

Language: English

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2 Printed book

Neutron scattering studies of two-dimensional antiferromagnetic spin fluctuations in insulating and superconducting S = ½ systems

Bech Christensen, N.

Risø National Laboratory. Materials Research Department, — 2004, pp. 191 s.

Year: 2004

Language: English

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3 Printed book

Neutron scattering studies of two-dimensional antiferromagnetic spin fluctuations in insulating and superconducting S = 1/2 systems

Bech Christensen, N.; Niels Bohr Inst.; Risø National Lab., Roskilde (DK). Materials Research Dept.

Time-of-flight and polarized triple axis neutron scattering is used to probe the spin excitations of Cu(DCOO)_2x4D_2O and La_2_-_xSr_xCuO_4. The first part of the thesis contains an investigation of the excitation spectrum of the square lattice S = 1/2 Heisenberg antiferromagnet Cu(DCOO)_2·4D_2O

Year: 2005

Language: English

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