Volker Heine | |
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Born | Hamburg, Germany | September 19, 1930
Alma mater | University of Otago |
Awards |
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Scientific career | |
Fields | Condensed matter physics, Materials science |
Institutions | University of Cambridge |
Doctoral advisor | Sir Nevill Mott |
Volker Heine FRS (born 19 September 1930 in Hamburg, Germany) is a New Zealand / British physicist. He is married to Daphne and they have three children. Volker Heine is considered a pioneer of theoretical and computational studies of the electronic structure of solids and liquids and the determination of physical properties derived from it.
Volker Heine was educated at Wanganui Collegiate School and the University of Otago (New Zealand). In 1954, he came to Cambridge (UK) on a Shell Post-Graduate Scholarship to do his Ph.D. in physics (1956) as student of Sir Nevill Mott. In the following years he obtained a Fellowship at Clare College and became part of the new theory group in the Cavendish Laboratory and apart from a post-doc year and several sabbaticals and summer visits in the US, he stayed in Cambridge for the remainder of his career. In 1976, Heine became a professor and took over as head of the theory group which was by then called "Theory of Condensed Matter". He held that position until his retirement in 1997. [1]
Volker Heine has been a very active figure in the international scientific community, shaping in particular the landscape of the field of atomistic computer simulations in Europe. He initiated and later led the Psi-k network, [2] a worldwide network of researchers working on the advancement of first-principles computational materials science. Psi-k's mission is to develop fundamental theory, algorithms, and computer codes in order to understand, predict, and design materials properties and functions. Key activities of Psi-k are the organization of conferences, workshops, tutorials and training schools as well as the dissemination of scientific thinking in society.
Volker Heine was elected Fellow of the Royal Society in 1974 and of the American Physical Society in 1987. He was awarded the Maxwell Medal and Prize in 1972, the Royal Medal of the Royal Society (London) in 1993, the Dirac Medal of the Institute of Physics in 1994, and the Max Born Prize in 2001. He has been visiting professor at several universities around the world and External Scientific Member of the Max Planck Institute for Solid State Research in Stuttgart.
Scholia has a profile for Volker Heine (Q1419397). |
Volker Heine's research essentially covered three areas: (a) Understanding the behavior of materials from the calculation of their electronic structure; (b) Understanding the origin of incommensurately modulated materials; (c) Understanding the structure and properties of minerals from an atomic point of view. His main research topic is electronic structure theory and particularly the development of various fundamental concepts for condensed matter physics. Here, his pioneering work on pseudopotentials [3] [4] forms a basis of most presently undertaken electronic structure and total-energy calculations, in particular for semiconductors and so-called sp-bonded metals. [5] [6] He also developed the basic description of electron-phonon coupling, [7] and much of our understanding of the structure and atomic relaxation at surfaces was established by Heine. [6] Furthermore, his groundbreaking work on the complex band structure and pioneering ideas in the theory of surface states provides the basis of present-day description and understanding of electronic properties of bulk and interfaces. [8] [9] [10] This includes the concept of metal-induced gap states at metal-semiconductor heterostructures and the understanding of Schottky barriers. [11] Amongst his seminal contributions are also the formulation of a recursion method for electronic structure studies, [9] a theory of incommensurate structures of polytypes of silicon carbide, [12] [13] [14] and a model for incommensurate and framework structures of minerals. [15] [16] [17] [18] He studied magnetic properties of solids, [19] [20] various aspects of crystal phase transitions e.g. [21] [22] and thermal expansion [23] and more. Volker Heine has published more than 200 research papers, several review articles and one text book. [24]
Allotropy or allotropism is the property of some chemical elements to exist in two or more different forms, in the same physical state, known as allotropes of the elements. Allotropes are different structural modifications of an element: the atoms of the element are bonded together in a different manner. For example, the allotropes of carbon include diamond, graphite, graphene, and fullerenes.
PLATO is a suite of programs for electronic structure calculations. It receives its name from the choice of basis set used to expand the electronic wavefunctions.
Quantum 1/f noise is an intrinsic and fundamental part of quantum mechanics. Fighter pilots, photographers, and scientists all appreciate the higher quality of images and signals resulting from the consideration of quantum 1/f noise. Engineers have battled unwanted 1/f noise since 1925, giving it poetic names due to its mysterious nature. The Quantum 1/f noise theory was developed about 50 years later, describing the nature of 1/f noise, allowing it the be explained and calculated via straightforward engineering formulas. It allows for the low-noise optimization of materials, devices and systems of most high-technology applications of modern industry and science. The theory includes the conventional and coherent quantum 1/f effects (Q1/fE). Both effects are combined in a general engineering formula, and present in Q1/f noise, which is itself most of fundamental 1/f noise. The latter is defined as the result of the simultaneous presence of nonlinearity and a certain type of homogeneity in a system, and can be quantum or classical.
In physics, a pseudopotential or effective potential is used as an approximation for the simplified description of complex systems. Applications include atomic physics and neutron scattering. The pseudopotential approximation was first introduced by Hans Hellmann in 1934.
octopus is a software package for performing Kohn–Sham density functional theory (DFT) and time-dependent density functional theory (TDDFT) calculations.
Extremal optimization (EO) is an optimization heuristic inspired by the Bak–Sneppen model of self-organized criticality from the field of statistical physics. This heuristic was designed initially to address combinatorial optimization problems such as the travelling salesman problem and spin glasses, although the technique has been demonstrated to function in optimization domains.
Marvin Lou Cohen is an American theoretical physicist. He is a University Professor of Physics at the University of California, Berkeley. Cohen is a leading expert in the field of Condensed Matter Physics. He is highly cited and most widely known for his seminal work on the electronic structure of solids.
The term R-matrix has several meanings, depending on the field of study.
PARSEC is a package designed to perform electronic structure calculations of solids and molecules using density functional theory (DFT). The acronym stands for Pseudopotential Algorithm for Real-Space Electronic Calculations. It solves the Kohn–Sham equations in real space, without the use of explicit basis sets.
In crystallography, a disclination is a line defect in which rotational symmetry is violated. In analogy with dislocations in crystals, the term, disinclination, for liquid crystals first used by Frederick Charles Frank and since then has been modified to its current usage, disclination. It is a defect in the orientation of director whereas a dislocation is a defect in positional order.
In bulk semiconductor band structure calculations, it is assumed that the crystal lattice of the material is infinite. When the finite size of a crystal is taken into account, the wavefunctions of electrons are altered and states that are forbidden within the bulk semiconductor gap are allowed at the surface. Similarly, when a metal is deposited onto a semiconductor, the wavefunction of an electron in the semiconductor must match that of an electron in the metal at the interface. Since the Fermi levels of the two materials must match at the interface, there exists gap states that decay deeper into the semiconductor.
The hexatic phase is a state of matter that is between the solid and the isotropic liquid phases in two dimensional systems of particles. It is characterized by two order parameters: a short-range positional and a quasi-long-range orientational (sixfold) order. More generally, a hexatic is any phase that contains sixfold orientational order, in analogy with the nematic phase.
The Pandya theorem is a good illustration of the richness of information forthcoming from a judicious use of subtle symmetry principles connecting vastly different sectors of nuclear systems. It is a tool for calculations regarding both particles and holes.
Yambo is a computer software package for studying many-body theory aspects of solids and molecule systems. It calculates the excited state properties of physical systems from first principles, e.g., from quantum mechanics law without the use of empirical data. It is an open-source software released under the GNU General Public License (GPL). However the main development repository is private and only a subset of the features available in the private repository are cloned into the public repository and thus distributed.
The SP formula for the dephasing rate of a particle that moves in a fluctuating environment unifies various results that have been obtained, notably in condensed matter physics, with regard to the motion of electrons in a metal. The general case requires to take into account not only the temporal correlations but also the spatial correlations of the environmental fluctuations. These can be characterized by the spectral form factor , while the motion of the particle is characterized by its power spectrum . Consequently, at finite temperature the expression for the dephasing rate takes the following form that involves S and P functions:
Judy Franz is an American physicist, educator and the former Executive Officer of the American Physical Society.
Suresh Chand Jain was an Indian physicist and director of the Defence Research and Development Organization. Known for his research in solid state physics, Jain was an elected fellow of the Indian National Science Academy and National Academy of Sciences, India. In 1966, the Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology, one of the highest Indian science awards for his contributions to physical sciences.
Brian Kidd Ridley is a British solid-state physicist specialising in semiconductor theory. He is an emeritus professor at the University of Essex.
Elizabeth Gardner was a British theoretical physicist. She is best known for her groundbreaking work on a phase transition known as the Gardner transition and on disordered networks.
The FLEUR code is an open-source scientific software package for the simulation of material properties of crystalline solids, thin films, and surfaces. It implements Kohn-Sham density functional theory (DFT) in terms of the all-electron full-potential linearized augmented-plane-wave method. With this, it is a realization of one of the most precise DFT methodologies. The code has the common features of a modern DFT simulation package. In the past, major applications have been in the field of magnetism, spintronics, quantum materials, e.g. in ultrathin films, complex magnetism like in spin spirals or magnetic Skyrmion lattices, and in spin-orbit related physics, e.g. in graphene and topological insulators.